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Genetics Review
1. Who was Mendel and what did he do?
2. What is the genetic makeup of an organism called?
3. What is an organism with two different alleles for a trait?
4. What is the branch of biology that studies heredity?
5. Why did Mendel study peas instead of dogs?
6. Complete the Punnett square: heterozygous tall X heterozygous tall T= tall t=short.
7. Red roses are dominant (R) and yellow roses are recessive (r)
Heterozygous X homozygous recessive
8. What does heterozygous mean?
9. What does homozygous mean?
10. What is another name for a gene?
11. What are an organism’s physical traits called?
12. Name the following genotypes BB Bb bb.
13. What kind of blood can AB typed people receive?
14. What kind of blood can O type blood recieve?
15. Explain how to inherit color blindness as a woman. As a man?
16. Give an example of incomplete dominance.
17. Why is it important to know the Rh of someone’s blood before a blood transfusion?
18. Name the 4 blood types.
19. What blood types types can a person with type O donate two? What blood types can a
person with blood type B donate to?
20. What is the difference between codominance and incomplete dominance?
21. Give an example of codominance?
22. What type of genotype can a person with type B blood recieve?
23. What are sex-linked genes? Give an example
24. What is polygenetic inheritance? Give an example
25. A cow shows co-dominance for fur color. B= black b= white. Do a monohybrid punnett square
cross for two cows complete with geno and phonotype ratios.
26. What is pleiotrophy? Make up an example.
27. A duck shows incomplete dominance for feather color. Y= yellow y=blue. Do a monohybrid
punnett square cross for two ducks complete with geno and phonotype ratios.
28. What is epistasis? Give an example.
29. List the infected individuals?
30. Is this disease sex linked? Explain
31. Can females be carriers? Males? Explain.
32. Place a check over the carriers.