Study Guide: Heredity
Name:_______________________________ Date:_____________________ Class:______
Define each of the following terms.
1. Heredity –
2. Trait –
3. Gene –
4. Allele –
5. Dominant –
6. Recessive –
7. Homozygous –
8. Heterozygous –
9. Who and why is Gregor Mendel important?
10. What are chromosomes?
11. What are genes?
12. Where do we get our genes?
13. What is an allele?
14. What is a recessive allele?
15. What is a dominant allele?
16. What is a genotype?
17. What is a phenotype?
18. A long-haired cat (LL) and a short-haired cat (ll) have kittens.
a. What is the dominant form of the hair length trait?
b. What is the recessive form of the hair length trait?
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c. What will the genotype of the kittens be?
d. What will the phenotype of the kittens be?
19. What is sexual reproduction?
20. What is asexual reproduction?
21. Fill in this trait table.
Trait
Eye Color
Tail shape
Nose Length
Allele From Mom
R
s
__L___
Allele From Dad
r
___s___
L
Genotype
Rr
ss
LL
Phenotype
Red eyes
Corkscrew shaped
Long Nose
22. If the possible eye colors are red and green, what color is dominant?
23. If the possible tail shapes and corkscrew and straight, which shape is dominant? How do you know
this?
24. If the possible nose lengths are long and short, which trait is recessive?
25. What is the genotype for green eye color?
26. What are the possible phenotypes for tail shape?
Identify as Meiosis or Mitosis:
Produces sex cells called gametes____________________________
Produces cells with 23 chromosomes______________________________
Produces genetically identical cells_____________________
Is for the purpose of growing or repairing the organism’s body cells_______________
Aids in sexual reproduction_________________________________
Produces body cells___________________________________________
Produces genetically unique cells___________________________________
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