genes inheritance

1. SLIDESMANIA
UNLOCKING
THEDIFFICULTIES!

2. SLIDESMANIA
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!
What G is a branch of biology concerned with the study of genes,
genetic variation and heredity in organism?
ETGENCIS

3. SLIDESMANIA
What G is a branch of biology concerned with the study of genes,
genetic variation and heredity in organism?
GENETICS
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

4. SLIDESMANIA
Who is considered as the father of genetics?
GORGRE MNDEEL
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

5. SLIDESMANIA
Who is considered as the father of genetics?
GREGOR MENDEL
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

6. SLIDESMANIA
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!
What G refers to the unit of heredity and a section of DNA that
codes for a specific trait?
EGEN

7. SLIDESMANIA
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!
What G refers to the unit of heredity and a section of DNA that
codes for a specific trait?
GENE

8. SLIDESMANIA
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!
What I is a process by which genetic information is passed on from
parents to child?
HEINRITACNE

9. SLIDESMANIA
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!
What I is a process by which genetic information is passed on from
parents to child?
INHERITANCE

10. SLIDESMANIA
What T refers to the characteristics of an individual receive from its
parents?
STIART
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

11. SLIDESMANIA
What T refers to the characteristics of an individual receive from its
parents?
TRAITS
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

12. SLIDESMANIA
What A refers to the variant of a gene controlling the same trait and
occupying a specific region on a chromosome?
LESALLE
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

13. SLIDESMANIA
What A refers to the variant of a gene controlling the same trait and
occupying a specific region on a chromosome?
ALLELES
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

14. SLIDESMANIA
What R describes the trait that does not appear in offspring or
consider as the hidden allele?
CESRESVIE
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

15. SLIDESMANIA
What R describes the trait that does not appear in offspring or
consider as the hidden allele?
RECESSIVE
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

16. SLIDESMANIA
What D is considered as the controlling alleles?
DMOINATN
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

17. SLIDESMANIA
What D is considered as the controlling alleles?
DOMINANT
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

18. SLIDESMANIA
What G refers to the genetic makeup of an organism?
GOENTYEP
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

19. SLIDESMANIA
What G refers to the genetic makeup of an organism?
GENOTYPE
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

20. SLIDESMANIA
What P refers to the physical feature or trait of an organism?
TYPENEPO
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

21. SLIDESMANIA
What P refers to the physical feature or trait of an organism?
PENOTYPE
ACTIVITY 1: UNLOCKING THE DIFFICULTIES!

22. SLIDESMANIA
NON-MENDELIAN
INHERITANCE

23. SLIDESMANIA
SLIDESMANIA
It is a general term that refers to any pattern of inheritance
in which traits do not segregate in accordance with Mendel’s
laws. These traits are not determined by dominant or
recessive alleles. They can involve more than one gene
leading to a complex pattern of inheritance.
WHAT IS NON-MENDELIAN
INHERITANCE?

24. SLIDESMANIA
1. INCOMPLETE DOMINANCE
2. CODOMINANCE
3. SEX-LINKED INHERETANCE
4 TYPES OF NON-MENDELIAN
INHERITANCE
3. MULTIPLE ALLELES

25. SLIDESMANIA
SLIDESMANIA.C
It is a form of intermediate inheritance
in which one allele does not dominate
another allele, resulting in a new
phenotype.
INCOMPLETE DOMINANCE

26. SLIDESMANIA
+ =
Four o’clock flowers

27. SLIDESMANIA
SAMPLE PROBLEM
Show a cross between the pure red and white-flowered four o’clock plant using a Punnett square. Determine the
genotypic and phenotypic ratio of the offspring.
SOLUTION
STEP 1: Identify the genotype of the parents.
STEP 2: Construct the Punnett square and show the possible outcome of the cross.
STEP 3: Interpret the results.
STEP 4: Write the genotypic and phenotypic ratio of the offspring.

28. SLIDESMANIA
SLIDESMANIA.C
Is a pattern of inheritance in which the
alleles of same gene are present and
both are equally expressed in the
phenotype of the offspring.
CODOMINANCE

29. SLIDESMANIA
+ =
Chicken breeds

30. SLIDESMANIA
SAMPLE PROBLEM
A black chicken and a white chicken are crossed. What is the probability that they will have
erminette chick? Show the Punnet square.
SOLUTION
STEP 1: Identify the genotype of the parents.
STEP 2: Construct the Punnett square and show the possible outcome of the cross.
STEP 3: Interpret the results.
STEP 4: Write the genotypic and phenotypic ratio of the offspring.

31. SLIDESMANIA
SLIDESMANIA.C
It is a gene that is controlled by more
than two alleles.
MULTIPLE ALLELES

32. SLIDESMANIA
HUMAN BLOOD TYPE

33. SLIDESMANIA
FOUR BLOOD TYPES

34. SLIDESMANIA
FOUR BLOOD TYPES

35. SLIDESMANIA
SLIDESMANIA
PHENOTYPES GENOTYPES CAN DONATE BLOOD TO CAN RECEIVE BLOOD
FROM
Blood Type A
Homozygous
dominant (AA)
Heterozygous
dominant (AO)
A, AB A, O
Blood Type B
Homozygous
dominant (BB)
Heterozygous
dominant (BO)
B, AB B, O
Blood Type AB Homozygous
dominant (AB)
AB AB, O
Blood Type O Homozygous
recessive (OO)
A, B, AB, O O

36. SLIDESMANIA
SLIDESMANIA
SAMPLE PROBLEM
Suppose mom is type O and dad is type AB, what is the probability that
they will have a baby with type A blood?
SOLUTION
STEP 1. Identify the genotypes of the parents.
STEP 2. Construct Punnett square and show the possible outcome of the cross.
STEP 3. Interpret the result.
STEP 4. Write the genotypic and phenotypic ratio of the offspring.

37. SLIDESMANIA
ACTIVITY 2: WHAT’S MY PHENOTYPE AND
GENOTYPE?
Problem 1.
Show a cross between two pink hibiscus (gumamela) flower using a
Punnett square and answer the following question.
a. What are the genotypes of the parents?
b. What are the possible genotypes and phenotypes of the offspring in this
cross?
c. What is the genotypic and phenotypic ratio of the offspring in this cross?

38. SLIDESMANIA
ACTIVITY 2: WHAT’S MY PHENOTYPE AND
GENOTYPE?
Problem 2.
Show by means of diagrams the cross between white furred cow and roan
furred cow. What are the possible genotypes and phenotypes of the
offspring?
a. What are the genotypes of parents in this cross?
b. What are the possible genotypes and phenotypes of the offspring
c. What is the genotypic and phenotypic ratio of the offspring?

39. SLIDESMANIA
ACTIVITY 2: WHAT’S MY PHENOTYPE AND
GENOTYPE?
Problem 3.
Identify the possible blood types of the offspring if a woman whose blood
type is O and married to a man whose blood type is AB. Construct a
Punnett square.
a. What are the genotypes of the parents?
b. What are the possible genotypes and phenotypes of the offspring?
c. Give the genotypic and phenotypic ratio of the offspring.

40. SLIDESMANIA
+ =
ACTIVITY 3: WHICH PATTERN AM
I?

41. SLIDESMANIA
+ =
INCOMPLETE DOMINANCE

42. SLIDESMANIA
+ =
ACTIVITY 5: WHICH PATTERN AM
I?

43. SLIDESMANIA
+ =
CODOMINANCE

44. SLIDESMANIA
+ =
ACTIVITY 3: WHICH PATTERN AM
I?

45. SLIDESMANIA
+ =
INCOMPLETE
DOMINANCE

46. SLIDESMANIA
+ =
ACTIVITY 3: WHICH PATTERN AM
I?

47. SLIDESMANIA
+ =
INCOMPLETE
DOMINANCE

48. SLIDESMANIA
+ =
ACTIVITY 3: WHICH PATTERN AM
I?

49. SLIDESMANIA
+ =
CODOMINANCE

50. SLIDESMANIA
SLIDESMANIA
Read the problem below and answer it briefly by applying what you have learned about
the different patterns of non-Mendelian inheritance.
1. Your best friend has a naturally wavy hair. Her mother has a long straight hair while her
father has curly hair. How will you explain to your friend why her hair is neither straight
nor curly? Cite the specific pattern of inheritance.
2. Construct a Punnett square and use your own genetic combinations to produce your
desired offspring displaying the principle of codominance. You may use the flowers found
in your backyard or animals at home.
3. A woman claims that one of the three men is the biological father of her child. The
woman, the daughter, and all three men have their blood types identified. The results
based on the blood types are the following below. Which of the three men is the father?
Mother- Heterozygous Type A
Daughter- Type AB
Man # 1- Homozygous Type A
Man # 2- Type O
Man # 3- Heterozygous Type B
ACTIVITY 4: What I Have Learned?

51. SLIDESMANIA
Let’s
Summarize!
MENDELIAN
INHERITANCE
NON-MENDELIAN
INHERITANCE
• Mendelian inheritance
is the way in which
genes and their
corresponding traits
are passed from
parents to their
offspring by means of
dominant and
recessive alleles
• Non-Mendelian
inheritance is the
patterns of
inheritance which do
not follow the
Mendelian
inheritance.
• Involve only two
alleles
• Involve multiple
alleles or polygenes
• The two alleles of a
gene are either
dominant or recessive
• The two alleles are
neither dominant nor
recessive

52. SLIDESMANIA
Let’s
Summarize!
INCOMPLETE DOMINANCE- form of
intermediate inheritance in which one
allele does not dominate another
allele, resulting in a new phenotype.
CODOMINANCE- pattern of
inheritance in which the alleles of
same gene are present and both are
equally expressed in the phenotype of
the offspring.
MULTIPLE ALLELES- a gene that is
controlled by more than two alleles.

53. SLIDESMANIA
SLIDESMANIA
Assignment
Make a Family Traits Tree.
Identify the traits of the family members from your grandparents
up to your present generation. Choose among the traits you will
track which are Non-Mendelian traits of inheritance, then draw
each trait on the leaves of the family tree. Put a mark on those
traits that you do not inherit. Explain why chosen traits are under
the non-Mendelian pattern of inheritance.

54. SLIDESMANIA
SLIDESMANIA
Thank you for listening!