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Washington EOC Biology Grade 10: Fertilization & Offspring Variation 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. A scientist is studying an organism with a mutation which reduces the efficiency of tetrad formation. This defect would most likely affect the ability to:

Question 2 2. You are a ___ organism.

Question 3 3. Which of the following statements is true?

Question 4 4. Which of the following meiosis II events are correctly ordered?

Question 5 5. In fertilization two haploid cells with _____ chromosomes combine to produce a diploid cell with _____ chromosomes.

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Question 6 6.

Chromatids can be found in which of the following types of cell division?

I. Mitosis

II. Meiosis I

III. Meiosis II

Question 7 7. Which of these statements is true about genes?

Question 8 8. Which of the following statements is NOT true of meiosis?

Question 9 9.

Which of the following is an example of aneuploidy?

I. A haploid cell with one copy of chromosome 21

II. A diploid cell with three copies of chromosome 21

III. A diploid cell with four copies of the X chromosome

Question 10 10.

Which of the following statements is true?

I. A dihybrid cross is a cross between individuals heterozygous at one gene.

II. The law of independent assortment describes the relationship between alleles of a single gene.

III. The law of segregation describes the manner in which genes on different chromosomes segregate.

IV. Homologous chromosomes segregate into different gametes.

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Question 11 11. Mendel's study of what plant eventually revolutionized the understanding of heredity?

Question 12 12. Mendel's second law is also known as:

Question 13 13. Albinism (a condition in which a person has a faulty gene for melanin production), comes about from a homozygous recessive genotype. Using A and a to represent the alleles for melanin production, which is/ are the possible genotype/s for an albino person?

Question 14 14. In what order do sperm penetrate the following layers of the egg?

Question 15 15. A haploid gamete has how many sets of chromosomes?

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Question 16 16. A _____ is a cross between two individuals that are heterozygous at two loci.

Question 17 17. Which of the following statements does NOT help explain Mendel's law of segregation?

Question 18 18. After meiosis I, each daughter cell contains:

Question 19 19. When does crossing over occur?

Question 20 20. The trait which is not expressed in a heterozygous state is known as

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Question 21 21.

Which of the following events occur during prophase II?

I. Kinetochores assemble on each tetrad

II. Chromosome condensation

III. Spindle apparatus assembly

Question 22 22. What is the function of the gene linked to the ability to digest milk?

Question 23 23. Fertilization is _____.

Question 24 24. What type of organism has two copies of every gene?

Question 25 25. Gregor Mendel proposed which of the following concepts?

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Question 26 26. Which of the following structures is unique to meiosis?

Question 27 27. Which of the following explains why bacteria DO NOT follow Mendel's First Law?

Question 28 28. How many possible genetic combinations can occur for an organism with a haploid number of 12?

Question 29 29. If the cell of a diploid organism (2n = 6) undergoes meiosis, how many different chromosome homologs are present in each daughter cell at the end of meiosis I?

Question 30 30. If the cell of a diploid organism (2n = 6) undergoes meiosis, how many chromosomes are present in each daughter cell at the end of meiosis II?

Washington EOC Biology Grade 10: Fertilization & Offspring Variation 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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