Select all that apply.Disregard my answer choices. WHICH ONES appl.pdf

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Select all that apply. Disregard my answer choices. WHICH ONES apply? The allele of the human transport protein associated with light skin is found almost exclusively in Europeans. The other common allele, which appears to be the ancestral allele, is found in Africans. Explain how you think the allele present in Europeans came to be so common in this population. Select all that apply.A) This mutation was dominant. For this reason, over generations, the allele became more and more frequent.B) This mutation gave a reproductive advantage to people who carried it in the environments of Europe. So, over generations, the allele became more and more frequent until it predominated in this population.C) A mutation must have occurred in the population ancestral to modern Europeans after their migration to Europe.D) A mutation must have occurred in the population ancestral to modern Europeans before their migration to Europe.E) A mutation must have occurred in the population ancestral to modern Europeans either before or after their migration to Europe.F) The same mutations have occurred very often, so the allele became more and more frequent until it predominated in this population. aits ple notica Studi port prot ght-colored fi inding that the pigment Solution A.This mutation was dominant. For this reason, over generations, the allele became more and more frequent. C) A mutation must have occurred in the population ancestral to modern Europeans after their migration to Europe..

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Briefly describe the two competing theories regarding the origin of Homo sapiens and its distributional expansion from its origin in Africa. What does the genetic data say about these two hypothesis, which genes are most useful for these analyses and why? Given a large section of a genome, say a complete chromosome, how could you locate genes? Given a large section of a gene, say a complete exon, how could you determine reading frame? Solution 1. There are many competing therapies for the origin of Homo sapiens. Two such theories are Multi-regional hypothesis and Out of Africa 2 model. Multi-regional Hypothesis: The multi-regional hypothesis argues that our early hominid ancestors, including Homo ergaster and Homo heidelbergensis, migrated out of Africa and thus the evolution of modern humans took place in different parts of the world, a process termed regional continuity. This theory places great emphasis on the notion of steady evolutionary alterations or changes that happen in different regions and produce diverse variations of the species. Evolution of this kind is kept at a regular rate due to an amalgamation of cultural progress and ‘gene flow’ or interbreeding, thus keeping all lineages evolving at the same time. This process is characterized as parallel evolution, which suggests a subtle morphological resemblance between populations of species who are geographically separated. Out of Africa 2 model: It is widely recognized among both archaeological and anthropological academics that archaic Homo populations did leave Africa in an initial phase of globalisation, called the Out of Africa 1 model. Following this, the population replacement hypothesis maintains that modern humans evolved in Africa from the ancestral hominids that did not travel out of this continent in the first stage of global colonisation. It is then argued in this model that once evolved as anatomically modern humans, Homo sapiens travelled out of Africa to explore, colonise and rapidly replace the archaic Homo population. This movement suggests a second wave of hominid species emerging from Africa, thus the title: the Out of Africa 2 model..

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What scientific mechanism for evolution did Charles Darwin and Alfred Wallace propose in 1858? Describe how this concept works. What is the difference between microevolution and macroevolution? Solution 1. Charles Darwin during 1858 had proposed the Theory of Evolution by Natural Selection, where he has said that organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring. Alfred Wallace who is also called the Father of Biogeography, studied the geographical distribution of animal species and said the evolution is caused due to environmental pressures on varieties of species it forces different species to adapt themselves to the local conditions, leading to different populations in different locations. Both groups of scientists have said that natural selection is the single most and important factor in evolutionary changes seen in species. Scientifically, This concept works due to different phenomenon such as: a)Mutation- It is the Sudden change in the genetic makeup of an organism.And it is the driving force of evolution, which influences the population’s gene pool.The change in the genetic makeup of organism which favors the life of species makes it the fittest to survive! b)Genetic Drift-It can occur when a small group of individuals leaves a population and establishes a new one in a geographically isolated region.It occurs in a large population and helps the population to survive. c)Natural selection-This happens when populations of organisms are subjected to the environment. The fittest creatures are more likely to survive and pass their genes to their offspring, producing a population that is better adapted to the environment. 2.MicroEvolution-Microevolution is defined as changes in gene frequency in a population from one generation to the next.These small changes in species occur by recombining existing genetic material within the group of same species. Micro Evolution is caused due to Mutation, Migration or Gene Flow, Genetic Drift and Selection (natural and artificial). Macro Evolution: It refers to major evolutionary changes over time, the origin of new types of organisms from previously existing, but different, ancestral types.It is an evolution on a larger scale where we find the descent of many species from one common ancestor over billions of years.It is very difficult to see the Macro Evolution happening because it takes a longer time to happen. But Instead, we can reconstruct the history of life using all available evidence like geology, fossils, and living organisms..

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Does the Theory of Evolution include statements of lineages for the evolution of humans? Provide scientific rationale for inclusion/exclusion. Solution The theory of evolution does not describe the process for every single species.The process of evolution is based on the principle of development of all species from a common ancestor.The theory of evolution is based on the scientific views of many scientists and not just one .From Darwin\'s theory of evolution to the emerging ideas of scientists over the last 150 years, a lot of expansion has taken place regarding the evolution theory.In this context it can be said that we can always propose a hypothesis as to how humans evolved.The hypothesis proposed by us could be wrong as well but then it is a part of science.The current agreement regarding the evolution of humans is that as per the theory of evolution humans belongs to order Primates and Family Homonidae.It has been hypothesised from fossil records in the evolution theory that humans have evolved from primate ancestors in the late Mesozoic about 14 millions years ago and those ancestors no longer exist now.The modern humans have been reported to have evolved 200,000 years ago in east Africa..

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Match appropriately. Best fit. stratum corneum papillary region adipose tissue sebaceous gland ceruminous gland sudoriferous gland hemoglobin melanin carotene pigment absent in albinos pigment found in the eyes hypodermis produces sweat (perspiration) dermis along with sebaceous glands produces ear wax epidermis pigment found in the red blood cell produces oil (sebum) Solution Stratum corneum - G.Epidermis Papillary region - E. Dermis Adipose tissue- C. Hypodermis Sebaceous gland - I. Produces oil (Sebum) Ceruminous gland - F. Along with sebaceous glands produces ear wax Sudoriferous gland- D. Produces Sweat ( Perspiration) Hemoglobin- H. Pigment found in the red blood cell. Melanin- A. Pigment absent in albinos Carotene- B. pigment found in the eyes.

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In your own words does Enclave as a unit of security does it describe Intranet or a much large Concept? What if Enclaves are in different Domains?| Solution Enclaves are defined as a set of information and processing capabilities that are protected as a group. The information processing capabilities may include networks, hosts, or applications. An enclave is a representation of a business transaction or unit of work. Each individual enclave that is active in an address space is assigned a unique dispatching and input/output (I/O) priority, which is determined by the goals the user assigns to the enclave. The workload manager then allocates resources to each enclave based on its priority. If several transactions are concurrently sharing the same address space, the less important transactions are deferred until resources needed by the more important transactions become available. A Enclave is a section of an internal network that is subdivided from the rest of the network. The purpose of a network enclave is to limit internal access to a portion of a network. It is necessary when the set of resources differs from those of the general network surroundings. Typically, enclaves are not publicly accessible. Internal accessibility is restricted through the use of internal firewalls, VLANS, network admissions control and VPNs. An enclave is an environment under the control of a single authority with personnel and physical security measures. Enclaves typically contain multiple local area networks (LAN) with computing resource components such as user platforms; network, application, and communication servers; printers; and local switching/routing equipment. This collection of local computing devices is governed by a single security policy regardless of physical location. Because security policies are unique to the type, or level, of information being processed, a single physical facility may have more than one enclave present. Local and remote elements that access resources within an enclave must satisfy the policy of that enclave. A single enclave may span a number of geographically separate locations with connectivity via commercially purchased point-to-point communications. Enclave protection tools can be used to provide protection within specific security domains. These mechanisms are installed as part of an Intranet to connect networks that have similar security requirements,Network Enclaves consist of standalone assets that do not interact with other information systems or networks. A major difference between a DMZ or demilitarized zone and a network enclave is a DMZ allows inbound and outbound traffic access, where firewall boundaries are traversed. In an enclave, firewall boundaries are not traversed. An enclave cannot cross organizational boundaries. A Collaborative Domain (CD) connects or contains enclaves at one or more sites, and is the natural mechanism for instantiating inter- organizational collaborations. The CD provides the association.

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I need help answering both these questions Question 5: 1. A diploid cell contains three pairs of homologous chromosomes: A1 and A2, B1 and B2, and C1 and C2. Assuming no crossing-over occurs, what possible combinations of chromosomes will be present in: a) daughter cells following mitosis: b) metaphase I of meiosis: Solution 1. A)In mitosis the daugther produced are genetically identical , so all the geneticall material is being inherited from mother cells to daughter cells, So the only possibility is A1/A2/B1/B2/C1/C2. Since all the genetic material is being transfered from the parent cell to daughter cells B) The Meiosis 1 is meant to split the homologus pair into different cells, which will now be n ( Haploid) , So there can be 8 possible combinations of chromosomes, So if we take an example it could inherit A1/B1/C1 or A2/M1/S1.

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How did the issues of sectionalism reemerge in 1850, what was the proposed solution, and what were the debates on each side? History of US from 1812 to 1912 Solution In 1848 the acquisition of new territory from Mexico through the Treaty of Guadalupe Hidalgo renewed the sectional debate that had gripped the nation during the admittance of Missouri. The question of whether the new territory would allow slavery was the main question, with Northern Congressmen hoping to limit slavery and Southern Congressmen hoping to expand the territory in which it was legal. Soon after the war began, Democratic Congressman David Wilmot proposed that territory won from Mexico should be free from the institution of slavery. Called the Wilmot Proviso, the measure failed to pass Congress and thus never became law. This served to unify the majority of Southerners, who saw the Proviso as an attack on their society and their Constitutional Rights. The influx of population led to California\'s application of statehood in 1850. This created a renewal of sectional tension because California\'s admission into the Union threatened to upset the balance of power in Congress. The imminent admission of Oregon, New Mexico, and Utah also threatened to upset the balance. Many Southerners also realized that the climate of those territories did not lend themselves to the extension of slavery. Debate raged in Congress until a resolution was found in 1850. With the failure of the Wilmot Proviso, Senator Lewis Cass introduced the idea of popular sovereignty in Congress. In an attempt to hold the Congress together as it continued to divide along sectional, rather than party lines, Cass proposed that Congress did not have the power to determine whether territories could allow slavery since this was not an enumerated power listed in the Constitution. Instead Cass proposed that the people living in the territories themselves should decide the slavery issue. For the Democrats, the solution was not as clear as it appeared. Northern Democrats called for \"squatter sovereignty\" in which the people living in the territory could decide the issue when a territorial legislature was convened. Southern Democrats disputed this idea arguing that the issue of slavery must be decided at the time of adoption of a state constitution when the request was made to Congress for admission as a state. Cass and other Democratic leaders failed to clarify the issue so that neither section of the country felt slighted as the election approached. After Cass\' defeat in 1848, Illinois Senator Stephen Douglas assumed a leading role in the party and became closely associated with popular sovereignty with his proposal of the Kansas–Nebraska Act..

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How is localization of Gap gene expression achieved in the Drosophila embryo? (what is the mechanism?) Solution Drosophila has segmented body pattern, along the longitudinal axis. Gap gene is involved in development of the segmented embryos. Specialized transcription factors (mostly zinc fingers) are coded by gap genes which directly control the expression of set of genes (the pair rule genes) involved in segmentation. There is a cascade of transcription factors, which establish the segemented body pattern of drosophila. This starts during early development stage, wherein, the maternal gene products gets localized at the polar ends of the egg. Zygotic segmentation genes has the information for positioning of transcription factors. This regulatory hierarchy is led by gap gene. Along the longitudinal axis, expression of gap genes occurs in preblastoderm. Its discrete expression pattern defines specific and overlapping sets of segment primordia. The transcription factors encoded by gap genes form concentration gradients which are overlapping in nature, and the protein gradients thus formed provide cues to form repeated patterns. Thus the pattern of segments from blastoderm embryo are copied. Therefore, basically it is the maternal transcription factors which regulate the region-specific expression of zygotic transcription factors. The transcription factors encoded by gap genes regulate the expression of pair-rule genes and homeotic genes. Thus, it is the localized gene expression of gap gene which ultimately leads to the formation of the periodic pattern; mechanism known as the pair-rule gene expression. Studies of gap gene expression has demonstrated that from drosophila blastoderm, organisms with similar phenotype can be developed, despite of varitions occurring in the genotype, the phenomenon known as canalization..

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For the following ordinary differential equations, identify their dependent variables, independent variables, their orders and comment if they are linear or nonlinear and homogeneous or nonhomogeneous: Solution dy/dx derivative notation means the derivate of y with respect to x, hence y is a dependent variable of the independent variable x. second-order linear ordinary differential equation is written as y + p(t) y + q(t) y = g(t), it has same formate as given in question..

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Find two models of incidence geometry, each with exactly four points, that are not isomorphic. Justify your answer. Solution Six lines with each line having two points. It has the Euclidean parallel property that states, for every line l and for every point P lying not on l, there exists a unique parallel m to l through point P. Second model has four lines, one of which has three points. It has the elliptic parallel property that states incidence geometry has the ellipticparallel property iff any two lines do intersect necessarily at a unique point..

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Explain the concept of diaspora and distinguish between voluntary and involuntary diaspora? Discuss the dynamics of diaspora and show the extent to which diaspora is a global phenomenon? Solution The concept of Diaspora: This phenomenon explains dispersed population scattered from their specific homelands but they maintain their cultural aspects in the country where they migrated. Diaspora is going to illustrate about the people themselves or their previous ancestors & the people who have been living are going to retain their cultural aspects with “memories/myths” about their specific homeland. The voluntary migration of population from their homeland where they are not forced to migrate known as “voluntary Diaspora” where, “you will find no force to migrate”. The involuntary migration of population from their homeland where they are forced to migrate known as “involuntary Diaspora (refugees migrate)” where, “you will find force to migrate” (mainly religious persecutions). According to Wilbur Zelinsky, the dynamics of Diaspora is mainly due to immigrants & emigrants and the extent to which Diaspora is a global phenomenon is explained mainly by rural and urban migration. These dynamics can be explained by data that collected & correlates to extent of migration rates specifically within a country over a period..

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Does S_2 span P_2 ? Solution lets calculate the dimension of S_2 It is clear S2 is a subspace of P2 since every element of S2 is in P2. So if the dimension of S2 is 3 i.e. all elements of S2 are linearly independent then S2 spans P2 and it is a basis for P2 otherwise Not. Now lets see if all elements are LI if c1 (x^2 +1) + c2(x^2 + x) + c3(x+6) = 0 (zero polynomial) then c1 = -c2 c1 = -6c3 c2 = -c3 which gives all c1,c2,c3 = 0 so they are linearly independent and hence its a basis for P2..

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Describe one exception to Mendelian inheritance In what year did Charles Darwin publish The Origin of Species? What is the diploid # in humans? Write the Genus and species names of our species in the proper form. Solution 1. It is now understood that inheriting one allele can, at times, increase the chance of inheriting another or can affect how and when a trait is expressed in an individual\'s Phenotype. Likewise, there are degrees of dominance and recessiveness with some traits. The simple rules of Mendelian inheritance do not apply in these and other exceptions. They are said to have Non- Mendelian inheritance Patterns. For example: ABO blood type in humans, Genes regulating human stature etc, 2. Origin of species by charles Darwin got published in 1859. 3. For humans a diploid species, n=23. A typical human somatic cell has 46 chromosomes. 4. genus: Homo Speices: H. sapiens..

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Describe Norman’s 7 Stages of Action and Four Principles of Good Design Solution Answer : When we try to achieve something , we come accross many hurdles. There are alot of hurdles between your goal and initial step. Norman defined 7 stages of action which simulates it all. Here are the 7 stages of action : 1. Forming the goal 2. Forming the intension 3. Specifying an action 4. Executing the action 5. Percieving state of world 6. Interpreting state of world 7. Evaluating the outcome. First stage is for activity design. Next 3 are for interaction design and last three are for information design. The four principles of design are : 1. Contrast 2. Repetition 3.Alignment 4.Spelling These all are interconnected with each other..

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Bullying has become increasingly problematic for school aged children. Describe the different types of bullying as well as the characteristics of a bully. What are the consequences for the victim of bullying? How will this affect their social development? Finally, in addition to the tips in the textbook, brainstorm some ideas for reducing bullying in schools. Bullying has become increasingly problematic for school aged children. Describe the different types of bullying as well as the characteristics of a bully. What are the consequences for the victim of bullying? How will this affect their social development? Finally, in addition to the tips in the textbook, brainstorm some ideas for reducing bullying in schools. Solution Answer- Bullying is a aggressive behavior among school aged kids that involves an imbalance of power.The behavior of being aggressive can be repeated over time and may become a serious and long lasting problem. characteristic of bully - Some common characteristics of children who are bully. 1) Impulsive 2)anger management problem 3)tries to control other people by criticizing then rather than inspiring others. 4) Easily frustrated and annoyed Types of bullying- There are 3 types of bullying- 1) verbal bullying- verbal bullying includes teasing, name-calling, inappropriate sexual comments, taunting, threatening to cause harm. 2) social bullying- Social bullying involves hurting someone\'s relationship and reputation by various means like embarrassing someone in public,leave someone out on purpose, spreading rumors about someone,telling other children not to be friend with someone. 3) physical bullying-It involves hurting someone\'s body on purpose.it includes hitting, kicking, pinching,pushing , tripping,taking or breaking someone\'s things . Consequences for the victim of bullying- 1)suffer more psychological stress- bully victims suffer more imotional and psychological stress .They also suffer from lonelyness, anxiety,and depression. 2)Have trouble fitting in-Bully victim have harder time In social places than lonelyness.They are less cooperative and less sociable than other children around them.They have very few friends or same time no friend at all. 3) struggle in school- Bully victim feel unsafe in school and struggle to follow rules of school. 4) Bully victim can not manage their emotions. 5) Bully victim respond aggressively on any dress. Bullying behavior affect social development of children in many way - such children can not make friends and thus feel unsafe on every time whenever the come in contact with others. They can not learn to sharing things and thoughts with others.as they behave aggressively on sharing things.such children always suffer lack of confidence to express themselves.They avoid team work as they feel unsafe and poor . Ideas for reducing bullying in school- Whether we are educator or parant we can take some following steps to reduce bullying in school- 1)pay attention on child and belongings - .

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An experiment was conducted to determine whether a deficiency of carbon in the soil affects the phenotype of pass . Listed below are the phenotype codes where . Solution Here, n = number of observations = 14 mean = sum of observations / total number of observations. mean = 29 / 14 = 2.071429 = 2.1 Median procedure : Arrange observations in ascending order. n = 14 (even) median = [ (n/2)th observation + (n/2 + 1)th observation ] / 2 n/2 = 14/2 = 7th observation n/2 + 1 = 8th observation median =[ 7th observation + 8th observation ] / 2 = ( 2 + 2 ) / 2 =2 mode is the most repeated value in the data set. Mode = 2 because 2 occures 5 times. Mode is 2. All the measures of center make sense since the data is numerical. Mid range = (maximum of data + minimum of data) / 2 Mid range = ( 4 + 1 ) / 2 = 5 / 2 = 2.5 Which of the following is not a characteristic of the mean. the mean is sensitive to outliers..

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An abject is orbiting the Earth at 215 miles in altitude. It takes one hour to orbit the Earth. What is it\'s speed? What is the mathmatic equation to calculate the answer? Solution We know the earth\'s radius = 3960 miles. and the radius with object = 3960 miles + 215 miles = 4175 miles and the circumference of earth with respect to object = 2pi*4175 miles = 26232 miles and Given time = 1 hr then speed = distance/time = 26232 miles/1 = 26232 mph.

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A protein that was isolated by a team of university scientists is suspected to be expressed on a yet to be identified lymphocyte. Outline a series of experiments that you would design to identify the cells expressing the protein. Solution The protein expressing gene is identified on DNA. The gene of interest and the plamid are cut with same restriction endonuclease. The obtained gene is inserted in the plasmid. The plasmid is transformed into cell line. The transformed plasmid containing a marker gene such as antibiotic resistance gene or LacZ is useful to screen the presence of newly transformed gene. Screening for the presence of desired gene is done by hybridization or other molecular techniques. The desired gene expression can be studied by gene knockout or RNA interference..

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3 Quiz Question 10 (of 11) If the cash is received before the related goods or services are delivered, which of the following will be recorded? O Unearned Revenue, a liability Accounts Receivable, an asset O Pre-earned Revenue, which increases Retained Earnings O Service Revenue, which increases Retained Earnings Solution When the Cash is received before the related goods or services are delivered which will be recorded as Unearned Revenue, a Liability ( Untill the goods or services are delivered no revenue is recorded but records as a liability account Unearned Revenue).

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