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Genetics & Mutations Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Paleontology is the study of

Question 2 2. Comparative anatomy is useful for all but which of the following?

Question 3 3. What are Neurospora?

Question 4 4. Which of the following is an epigenetic mechanism that has been studied using Neurospora?

Question 5 5. What did Gregor Mendel notice in his pea plant hybrids that crossed white-flowered plants and purple-flowered plants?

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Question 6 6. In the illustration, what characteristics for body length will the offspring show and in what ratio (assuming there are large numbers of offspring)?

Question 7 7. Which process can separate alleles of linked genes?

Question 8 8. In which process does linkage really matter?

Question 9 9. Which of the following statements does NOT help explain Mendel's law of segregation?

Question 10 10. In 1900 the observation of what helped other scientists realise the significance of Mendel's work?

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Question 11 11. A dihybrid cross involves ______.

Question 12 12. The phenotypic ratio in a dyhybrid cross is _____~.

Question 13 13. The combined observations of Boveri and Sutton showed all of the following EXCEPT:

Question 14 14. According to which theory do the alleles of one gene sort into gametes independently of the alleles of another gene?

Question 15 15. Which of the following is true about sex chromosomes?

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Question 16 16. Eye color is a sex-linked trait in fruit flies, and red (R) is the dominant allele while white (r) is the recessive allele. If a homozygous recessive female (rr) mates with a male with the dominant allele (R), what is the chance that their son will inherit that dominant trait?

Question 17 17. Which parent determines the sex of a child in humans? Why?

Question 18 18. Sex determination typically leads to the development of which of the following?

Question 19 19.

Which of the following is an example of natural selection?

I. Albino animals are rare in nature because they are easy for predators to find.

II. The fastest gazelle is least likely to be eaten by a lion.

III. The gorilla that is strong enough to become alpha male is the most likely to pass on his genes.

Question 20 20.

Which of the following statements does NOT represent the idea of heritability by acquired characteristics?

I. A body builder develops stronger muscles during the course of his life, so his son will be strong as well.

II. A cat that lost its tail will produce offspring with shorter tails.

III. Over time, a population of heavily striped zebras increased over those without as much striping, as the heavily striped ones had a competitive advantage over the zebras with fewer stripes, and were, therefore, better able to reproduce.

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Question 21 21. DNA can be changed by which of the following?

Question 22 22. Natural selection is based on the which of the following ideas?

Question 23 23.

You could draw which of the following conclusions from a dihybrid cross which produces a 9:3:3:1 ratio of phenotypes?

I. The alleles of one gene sort independently of another gene.

II. The alleles of the two genes in question exhibit a simple dominant/recessive relationship.

III. The animals which were crossed were both homozygous with respect to at least one locus in question.

Question 24 24. Mendel's second law is also known as:

Question 25 25. The following results were observed from a mating between two black and white speckled cats: 5 black cats, 12 black and white speckled cats, and 4 white cats. Which term describes the relationship between the alleles of the coat color gene?

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Question 26 26. Joe is in urgent need of a blood transfusion. His blood genotype is AA. Mike has an oo genotype, and Mary has a BB genotype. Who would be able to donate blood to Joe, and why?

Question 27 27. Which of the following is NOT an example of a phenotype?

Question 28 28. When an organism is diploid, that means it has _____.

Question 29 29. How does the fossil record support evolution?

Question 30 30. Which of the following is Not one of the reasons why Neurospora are ideal organisms for genetics research?

Genetics & Mutations Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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