Genetic basis of behaviour examines the interaction between genes and environment in shaping behaviour. According to the interactive theory of development, genes and environment work together to influence behavioural phenotypes. Behavioural development requires both genetic and environmental factors, as seen in honey bee foraging behaviour which progresses through different stages based on age and hormone concentration. A single gene difference can lead to large behavioural differences, as shown in knockout experiments where mice lacking the fosB gene show no parental care behaviours. Both nature and nurture interact to produce behaviour.
Animal behaviour is any activity performed by an animal in response to an internal or external stimuli or combination of both. Every behaviour of animal is more or less controlled by a genetical component. Some behaviours are controlled by a single or a few genes. Other behaviours are controlled by a set of genes through complex interplay.
Sociobiology carries the assumption that the behavior is influenced by genes, though not rigidly determined by them; any behavior emerges through the interaction between the genes and environment. Edward O. Wilson brought the term (and the concept it represents) into both academic and popular usage with his 1976 book Sociobiology: The New Synthesis (Wilson 1976). Wilson was an ant biologist and had spent his career observing the much ramified social behavior of these insects, though his book extended to social behavior throughout the animal kingdom. The book was a synthesis of the existing work, clearly establishing how the evolutionary theory could be applied to the understanding of social behavior. It was a landmark in evolutionary biology and was resulted in two key shifts in the study of animal behavior. First, sociobiology’s mainly focuses is on the functional significance of behavior (Wilson et al., 2005). Previous work on the animal behavior, in the discipline of ethnology for example, had focused more on the mechanisms by which the behavior is brought about.
Animal behaviour is any activity performed by an animal in response to an internal or external stimuli or combination of both. Every behaviour of animal is more or less controlled by a genetical component. Some behaviours are controlled by a single or a few genes. Other behaviours are controlled by a set of genes through complex interplay.
Sociobiology carries the assumption that the behavior is influenced by genes, though not rigidly determined by them; any behavior emerges through the interaction between the genes and environment. Edward O. Wilson brought the term (and the concept it represents) into both academic and popular usage with his 1976 book Sociobiology: The New Synthesis (Wilson 1976). Wilson was an ant biologist and had spent his career observing the much ramified social behavior of these insects, though his book extended to social behavior throughout the animal kingdom. The book was a synthesis of the existing work, clearly establishing how the evolutionary theory could be applied to the understanding of social behavior. It was a landmark in evolutionary biology and was resulted in two key shifts in the study of animal behavior. First, sociobiology’s mainly focuses is on the functional significance of behavior (Wilson et al., 2005). Previous work on the animal behavior, in the discipline of ethnology for example, had focused more on the mechanisms by which the behavior is brought about.
Two broad categories of behaviors are Proximate and Ultimate behaviour. The presentation gives a brief introduction on Proximate and Ultimate causes of behaviour
lecture 10 from a college level introduction to psychology course taught Fall 2011 by Brian J. Piper, Ph.D. (psy391@gmail.com) at Willamette University,
Two broad categories of behaviors are Proximate and Ultimate behaviour. The presentation gives a brief introduction on Proximate and Ultimate causes of behaviour
lecture 10 from a college level introduction to psychology course taught Fall 2011 by Brian J. Piper, Ph.D. (psy391@gmail.com) at Willamette University,
Epigenetics is the study, in the field of genetics, of cellular and physiological phenotypic trait variations that are caused by external or environmental factors that switch genes on and off and affect how cells read genes instead of being caused by changes in the DNA sequence. -Wikipedia
Animal Behavior:
What is Animal behavior? Types of animal behavior and its examples, innate behavior, Learned Behavior, migration, imprinting and etc...
presented by HAFIZ M WASEEM
university of education LAHORE Pakistan
i am from mailsi vehari and studied in lahore
bsc in science college multan
msc from lahore
This PPT is for FYBSc students of University of Mumbai, Maharashtra, India, studying in course one semester II.
For further query you may email at sudesh_rathod@yahoo.co.in
What's the difference between nonlife and life? A biologist reflects on the qualities that define life.
Register to explore the whole course here: https://school.bighistoryproject.com/bhplive?WT.mc_id=Slideshare12202017
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Cancer cell metabolism: special Reference to Lactate PathwayAADYARAJPANDEY1
Normal Cell Metabolism:
Cellular respiration describes the series of steps that cells use to break down sugar and other chemicals to get the energy we need to function.
Energy is stored in the bonds of glucose and when glucose is broken down, much of that energy is released.
Cell utilize energy in the form of ATP.
The first step of respiration is called glycolysis. In a series of steps, glycolysis breaks glucose into two smaller molecules - a chemical called pyruvate. A small amount of ATP is formed during this process.
Most healthy cells continue the breakdown in a second process, called the Kreb's cycle. The Kreb's cycle allows cells to “burn” the pyruvates made in glycolysis to get more ATP.
The last step in the breakdown of glucose is called oxidative phosphorylation (Ox-Phos).
It takes place in specialized cell structures called mitochondria. This process produces a large amount of ATP. Importantly, cells need oxygen to complete oxidative phosphorylation.
If a cell completes only glycolysis, only 2 molecules of ATP are made per glucose. However, if the cell completes the entire respiration process (glycolysis - Kreb's - oxidative phosphorylation), about 36 molecules of ATP are created, giving it much more energy to use.
IN CANCER CELL:
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
Unlike healthy cells that "burn" the entire molecule of sugar to capture a large amount of energy as ATP, cancer cells are wasteful.
Cancer cells only partially break down sugar molecules. They overuse the first step of respiration, glycolysis. They frequently do not complete the second step, oxidative phosphorylation.
This results in only 2 molecules of ATP per each glucose molecule instead of the 36 or so ATPs healthy cells gain. As a result, cancer cells need to use a lot more sugar molecules to get enough energy to survive.
introduction to WARBERG PHENOMENA:
WARBURG EFFECT Usually, cancer cells are highly glycolytic (glucose addiction) and take up more glucose than do normal cells from outside.
Otto Heinrich Warburg (; 8 October 1883 – 1 August 1970) In 1931 was awarded the Nobel Prize in Physiology for his "discovery of the nature and mode of action of the respiratory enzyme.
WARNBURG EFFECT : cancer cells under aerobic (well-oxygenated) conditions to metabolize glucose to lactate (aerobic glycolysis) is known as the Warburg effect. Warburg made the observation that tumor slices consume glucose and secrete lactate at a higher rate than normal tissues.
Cancer cell metabolism: special Reference to Lactate Pathway
Behavioural genetics.pptx sid
1. GENETIC basis of behaviour
HNBGU,SRINAGAR
DEPARTMENT OFZOOLOGY AND
BIO-TECHNOLOGY
BY
SIDDHANT BHARDWAJ
submitted to Prof. N. Singh
2. CONTENTS
1. INTRODUCTION
2. THE INTERACTIVE THEORY OF
DEVELOPMENT
3. NURTURE FALLACY
4.BEHAVIOURAL DEVELOPMENT
REQUIRES BOTH GENES AND
ENVIRONMENT
5. SINGLE GENE EFFECT ON
3. INTRODUCTION
•BEHAVIOUR is the series of actions of events
that together show how things normally
happens or done via organism.
•GENETICS is the study of the genetic make-up of
organisms and how this influences physical
and behavioural characteristics.
•BEHAVIOURAL GENETICS is concerned with the
genetic transmission of traits that give rise
to patterns of behaviour or it’s the study of
relative influence of genetic and
environment on behaviour.
4. THE INTERACTIVE THEORY OF DEVELOPMENT
Many insect species posses extremely sophisticated
behavioural abilities.
Taking the worker honey bee as an example, workers go
through a regular progression of occupation. when a
worker emerges from a brood cell in the waxy comb
tended by other workers, her first job is a humble one
,the cleaning of comb cells. She then becomes a nurse
bee that feeds honey to larvae in the brood comb before
making the transition to a distributor of food to her
fellow workers. The last phase of her life ,which begins
when she is about 3 weeks old , is spent foraging for
collecting pollen and nector ouside the hive.
5. What causes a worker to go
through these different
developmental stages?
According to interactive theory of
development the information in
some of the bee’s, may thousand
of genes [the bee’s genotype ]
must respond to the environment
in ways that influence the
development of her measurable
characteristics[the bee’s
phenotype] which include the
proximate mechanisms
underlying her behaviour.
6. NURTURE FALLACY / THE NATURE
Bee foraging behaviour cannot be purely genetically
determined because the behaviour is the product of
literally thousands of gene-environment interaction , all
of which are required to construct the bee’s brain and
the rest of its body . Indeed, the information in the DNA
that makes up a gene is expressed only when the gene is
in the appropriate environment.
f.eg- Concentration difference in juvenile hormone in
young nurse workers and older foragers.
Presence of ethyl oleate in forager bee’s that inhibit the
development of foraging behaviour in young bee’s.
7. BEHAVIOURAL DEVELOPMENT
REQUIRES BOTH GENES AND
ENVIRONMENT
IMPRINTING is an classical example
of the circumscribed learning , in
which a young animal's early social
interactions , usually with its parents
lead to its learning. Such things as
what constitutes an appropriate
sexual partner.
F.eg-A group of greylag goslings,
having imprinted on behavioural
biologist konrad lorenz rather than a
mother goose , formed both a
learned attachment to lorenz and in
the case of male grey lags , when
they reached adulthood ,a prefrence
for humans as mate.
8. SINGLE GENE EFFECT ON DEVELOPMENT
A difference in even a single gene product can lead to
many divergence in the gene- environment interactions
occuring in different individuals which may translate into
large behavioural differences between them.
Single gene effects can be documented in several
different ways, but perhaps most dramatically via GENE
KNOCKOUT experiments , in which a given gene is
inactivated in an animal genome in order to determine
how that particular gene contributes to development in
a particular environment.
9. F.Eg – knocking out of fosB gene
mice with the experimental
mutation are normal in most
respects but are totally
indifferent to their newborn
pups, which they fail to
retrieve should they wriggle
away from the nest. In
contrast, normal females
with two copies of active
fosB gene invariably gather
displaced pups together and
crouch over them, keeping
them warm and permitting
them to nurse.
10. CONCLUSION
There are different types of behavioural
patterns majorly instinctive and adaptive , but
all behavioural pattern requires the expression
of genes under suitable environmental
conditions.
Neither genotype nor environment can be said
to be more important than the other.