Exam (elaborations)

Chapter 13: Meiosis and Sexual Life Cycles Exam

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Course
202 (BIOLOGY)

Institution
University Of British Columbia (UBC )

This is a quiz on chapter 13 consisting 50 MCQ with answer key to test your knowledge of the genetics intro chapter. Helps with getting an A in the midterms for college or university.

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Uploaded on November 5, 2024
Number of pages 5
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Type Exam (elaborations)
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genetics
evolution
chapter 13
meiosis
mcq
bio110
bio120
biology
mendelian genetics
unit 3 genetics
variations in theme
genetic variation quiz
genetics
midterm chapter 13 meisosi adn sexual life cycle

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Chapter 13: Meiosis and Sexual Life Cycles

1. During which phase of meiosis do homologous chromosomes separate?
○ a) Prophase I
○ b) Metaphase I
○ c) Anaphase I
○ d) Telophase II
2. The result of meiosis is:
○ a) Four identical daughter cells
○ b) Two diploid cells
○ c) Four haploid cells
○ d) Two haploid cells
3. Crossing over occurs during which stage?
○ a) Prophase I
○ b) Metaphase II
○ c) Anaphase II
○ d) Telophase I
4. The main purpose of meiosis is to:
○ a) Create genetically identical cells
○ b) Reduce the chromosome number by half
○ c) Increase the size of the cell
○ d) Repair damaged DNA
5. Which of the following is not a source of genetic variation in meiosis?
○ a) Independent assortment
○ b) Crossing over
○ c) Random fertilization
○ d) DNA replication
6. Which phase follows metaphase I in meiosis?
○ a) Prophase II
○ b) Anaphase I
○ c) Telophase I
○ d) Metaphase II
7. How many chromosomes are present in human cells after meiosis?
○ a) 46
○ b) 92
○ c) 23
○ d) 69
8. Synapsis occurs during:
○ a) Anaphase I
○ b) Metaphase I
○ c) Prophase I
○ d) Telophase II
9. The term 'reduction division' refers to:
○ a) Mitosis
○ b) Meiosis I
○ c) Meiosis II
○ d) Cytokinesis

, 10. At the end of meiosis I, each daughter cell is:
○ a) Diploid
○ b) Haploid
○ c) Identical to the parent cell
○ d) Polyploid
11. The key event during anaphase II is:
○ a) Homologous chromosomes separate
○ b) Sister chromatids separate
○ c) Chromosomes line up at the equator
○ d) Cytoplasm divides
12. Genetic variation is increased by all the following except:
○ a) Crossing over
○ b) Random fertilization
○ c) DNA replication
○ d) Independent assortment
13. Which of the following statements is true about meiosis?
○ a) It results in four identical daughter cells
○ b) It involves two rounds of cell division
○ c) It produces diploid gametes
○ d) It occurs in somatic cells
14. What structure forms during prophase I to allow crossing over?
○ a) Centromere
○ b) Synaptonemal complex
○ c) Spindle fibers
○ d) Nuclear envelope
15. In humans, how many chromosomes are present in a gamete?
○ a) 23
○ b) 46
○ c) 69
○ d) 92
16. The term 'tetrad' refers to:
○ a) A pair of homologous chromosomes
○ b) Four chromatids
○ c) Four chromosomes
○ d) Two sister chromatids
17. During which phase do the homologous chromosomes align at the metaphase plate?
○ a) Prophase I
○ b) Metaphase I
○ c) Anaphase II
○ d) Telophase II
18. Which of the following events does not occur during meiosis II?
○ a) Separation of sister chromatids
○ b) Formation of tetrads
○ c) Alignment of chromosomes at the equator
○ d) Formation of spindle fibers
19. How many rounds of cell division occur in meiosis?
○ a) One
○ b) Two

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