Study Guide Genetics DOK 5
Name: _____________________________________________________
Block: ___________
Define the following terms:
1. Chromosome-__________________________________________________________________
2. DNA-_________________________________________________________________________
3. Gene-________________________________________________________________________
4. Dominant Trait-_________________________________________________________________
5. Recessive Trait-_________________________________________________________________
6. Environmental Trait-_____________________________________________________________
7. Inherited Trait-_________________________________________________________________
8. Genotype-_____________________________________________________________________
9. Phenotype-____________________________________________________________________
10. Heterozygous-__________________________________________________________________
11. Homozygous-___________________________________________________________________
12. Alleles-________________________________________________________________________
13. Probability-_____________________________________________________________________
Answer the following questions:
14. What important contribution did Gregor Mendal make to our body of knowledge about
genetics?
15. What important contribution did Rosalind Franklin make to our body of knowledge about
genetics?
16. What important contribution did James Watson and Francis Crick make to our body of
knowledge about genetics?
17. What is the shape of DNA?
18. What is the structure of DNA? Draw and describe.
19. What makes up the backbone of DNA? (known as the side poles of the ladder)
Study Guide Genetics DOK 5
20. What makes up the inside of the DNA molecule? (steps or rungs of the ladder)
21. How do the bases pair together?
22. How many chromosomes are in human body cells?
23. How many chromosomes are in human gametes (reproductive cells)?
24. Complete the complementary strand for the strand of DNA given.
A
__
T
__
C
__
A
__
G
__
C
__
C
__
T
__
T
__
A
__
25. Explain the difference between inherited and environmental traits.
26. Give two examples of inherited traits.
27. Give two examples of environmental traits.
28. Why do identical twins have the same DNA and not the same personality?
29. What is the relationship between chromosomes, DNA, and genes?
30. How do genes and alleles relate to each other? Give one example.
31. What is the difference between dominant and recessive traits?
32. What is the relationship between genotypes and phenotypes?
33. What is homozygous? Give an example using any letter. (There are two types)
34. What is heterozygous? Give an example using any letter.
G
__
Study Guide Genetics DOK 5
35. State the goal of mitosis. ________________________________________________________
36. State the goal of meiosis. ________________________________________________________
37. Using the Venn diagram below, note the similarities and differences between mitosis and
meiosis.
Mitosis
Meiosis
Both
38. Given the genotype Bb (brown is dominant and white is recessive), what is the phenotype?
39. Given the phenotype white (which is recessive and purple is dominant) what is the genotype?
Study Guide Genetics DOK 5
40. What are the genotypes of the parents for this Punnett square cross?
_______
_______
_______
Dd
Dd
41. Complete the following Venn diagram.
_______
Dd
Dd
42. Complete the following Punnett squares.
Square 1
Square 2
Rabbit fur
B=brown
b=white
B
_______
Flower color
P=purple
p=white
b
_______
P
_______
B
____
____
p
____
____
B
____
____
p
____
____
P
_______
Genotypic Ratio:
Genotypic Ratio:
BB:_____ Bb:_____ bb:_____
PP:_____ Pp:_____ pp:_____
Phenotypic Ratio:
Phenotypic Ratio:
Brown:________ white:________
Purple:________ white:________
Study Guide Genetics DOK 5
43. Determine the genotype of the parents using the following Punnett square.
________
________
RR
________
Rr
Genotypic Ratio:
RR:_____ Rr:_____ rr:_____
Phenotypic Ratio:
________
Rr
44. Label the picture below.
rr
Round:________ square:________
Study Guide Genetics DOK 5
45. Label the picture below.
46. The Green family has four daughters. What is the probability their next child will also be a girl?
47. If a typical human body cell has 46 chromosomes, meiosis will produce sex cells with how many
chromosomes?
48. If a typical canine (dog) gamete has 39 chromosomes, how many chromosomes will be in the
body cells?