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Chromosomes & Chromosome Disorders 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. Humans contain two copies of each chromosome. Each copy contains the same gene sequence. What are these copies called?

Question 2 2. Which of the following best describes a chromosome?

Question 3 3. Which term best describes a segment of DNA that codes for a particular trait?

Question 4 4. How many homologous pair of chromosomes do humans possess?

Question 5 5. Which of the following best describes the occurrences of mitosis?

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Question 6 6. Which of the following is true about sex chromosomes?

Question 7 7. What would have to happen for a female to have a sex-linked disorder?

Question 8 8. 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 9 9. A heterozygous mother will have:

Question 10 10. Why are males more likely to be affected by sex-linked disorders?

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Question 11 11. Which of the following is true of autosomes?

Question 12 12. Which human chromosome is the longest?

Question 13 13. How many total autosomes do most humans have?

Question 14 14. The two autosomes in a pair (for example, the two copies of chromosome 5) are called ______.

Question 15 15. Chromosomes that do not function in sex determination are called _______.

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Question 16 16. What can analyzing a person's karyotype tell you?

Question 17 17. Analyze this human karyotype, then determine which of the following statements is true.

Question 18 18. How many total chromosomes are there in the karyotype of a normal human?

Question 19 19. The number and appearance of chromosomes in an organism is called a ______.

Question 20 20. In karyograms, _______.

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Question 21 21. A protein that plays a central role in DNA folding

Question 22 22. A discrete unit of DNA that produces a protein that provides the functionality a cell needs is

Question 23 23.

Place the following terms in order from the most basic structure in the cell to the most complex:

I. Gene

II. DNA

III. chromatin

IV. nucleosome

Question 24 24.

Which of the following roles in the cell could non-coding DNA perform?

I. Provide structural support at the end of chromosomes.

II. Encode a protein that will play a significant role in cell division.

III. Serve functional purposes.

Question 25 25. The combination of multiple histones and DNA is called

Chromosomes & Chromosome Disorders 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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