Genetics Quiz Review Worksheet With Answers (Page 5 of 5) in pdf

Genetics Quiz Review Worksheet With Answers Page 5

Answers to Terms

1.Selective breeding 2.Recessive 3.Homozygous 4.genetic engineering 5.Trait 6.Mutation 7.Chromosome

8.Dominant 9.transposon 10.gene therapy 11.pollination 12.pedigree 13.gene 14.heredity 15.Punnett

square 16.fertilization 17.alleles 18.heterozygous

Answers to Punnett Square questions:

1. 100% 2. 0% 3. Yes 4. 75% 5. 25% 6. Straight hair 7. 50% 8. 50% 9. 50% 10. 0% 11. Not 12. 100%

13. 0% 14. 25% 15. 50% 16. Type O – 0%, Type A – 50%, Type B – 50%, Type AB – 0% 17. No 18. Only Type O

19. 100% 20. Yes

Answers to Pedigree Questions

1. male 2. Grandmother 3. Uncle 4. Brothers 5. A and B 6. (you should make a small

square in line with L and M and connect it to the line above L and M) 7. (see example )

Answers to Other Questions

1. Favorite color is not a genetic trait because it is inherited on a chromosome from your parents.

2. DNA

3. No, all living things have chromosomes.

4. No, some traits are recessive and seem to “skip a generation.”

5. No, some patterns of inheritance are more complex, like incomplete dominance, codominance, sex-linked

patterns, or even multiple allele patterns.

6. Males have an X and a Y chromosome, while females have two X chromosomes.

7. Pedigree charts are used to trace the occurrence of a trait across generations. They can be used to track

genetic disease through families.

8. No, the fourth child will not always get the disease. There is a 25% chance (1 in 4 odds) for each child born,

independent of the birth order.

Genetics Quiz Review Worksheet With Answers Page 5