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Unit 4 Review – Inheritance
Name _________________
Asexual and Sexual Reproduction – Goal 3.02
1. What is a chromosome?
2. What is a somatic cell? _________________________________________________________
Give three examples.
3. How many chromosomes are founding a human body cell? _______________ Is this a diploid # or
haploid #? _______________
4. What is a gamete?
5. How many chromosomes are founds in a human gamete? _______________Is this the diploid # or
haploid #?_______________
6. What are autosomes? __________________________________________________________
How many do you have in your body cells? _____________
7. What are sex chromosomes? _____________________________________________
What sex chromosomes does a female have? _______________ Male? _____________
8. What is trisomy? Give an example.
9. What is monosomy?
10. What is budding and binary fission?
11. Why is mitosis important in a multicellular organism?
12. What kind of cell does mitosis make? ___________ Are they diploid or haploid? _____________
13. Put the following phases in the correct order. What process is this? _______________
14. How many daughter cells does mitosis make? _______________Are they haploid or diploid?
_______________Is the parent cell haploid or diploid? _______________
15. What is sexual reproduction?
16. What kind of cells does meiosis make? ____________Are they diploid or haploid? _____________
17. How many daughter cells does meiosis make? _______________ Are they haploid or diploid?
_______________ Is the parent cell haploid or diploid? _______________
18. What is synapsis?
19. Does it occur during mitosis or meiosis? _______________
20. What is crossing over?
21. Which type of reproduction is good for a changing environment because is has lots of variation?
22. Which type of reproduction is good for a stable environment?
Patterns of Inheritance – Goal 3.03
23. Draw a pedigree for the following:
*Parents are both heterozygous for this trait
*Their daughter has PKU
PKU (recessive genetic disorder)
*Their second child, a son, is normal
*Their third child, a daughter, is a carrier
24. In the above pedigree, if the last daughter marries someone who is a
carrier for PKU, predict the possible phenotypes of a child born to them.
25. Who is Gregor Mendel?
26. Work out the following genetic crosses for the pea plants:
R= round
A. RR x rr
B. RR x Rr
C. Rr x Rr
GR
r= wrinkled
D. Rr x rr
GR
PR
GR
PR
What is the genotype for a homozygous Round pea plant?_______ heterozygous pea plant? _______
recessive pea plant? _______
27. What is a test cross used for?
28. In a test cross, what is the unknown genotype always crossed with?
29. A test cross to determine whether a brown rabbit is homozygous or heterozygous is performed and all
offspring are brown. What does this tell me about the genotype of the brown rabbit?
30. Give an example of multiple allele inheritance.
31. Give an example of polygenic inheritance.
32. If a male has hemophilia (sex linked trait) and a female is a carrier, and they have
children, what are the chances of their sons having hemophilia? ____________
Their daughters? _______________
33. If a father has type O blood and the mother has heterozygous type A blood,
what are the possible genotypes of their children?
34. If you cross a red flowering plant with a white flowering plant and the offspring have red and white
flowers, what kind of inheritance is this?
35. If you cross a red flowering plant with a white flowering plant and the offspring have pink flowers, what
kind of inheritance is this?