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Zygotene MCQ Questions & Answers

Zygotene MCQs : This section focuses on the "Zygotene". These Multiple Choice Questions (MCQs) should be practiced to improve the Zygotene skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

If the pairing starts at terminal and proceeds towards centre it is known as ________________

A. Procentric
B. Proterminal
C. Random
D. Acrocentric

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Question 2

Pairing of chromosome is initiated by hydrodynamic force.

A. True
B. False

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Question 3

The formation of synaptonemal complex is ______________ DNA replication in zygotene.

A. Before
B. Simultaneous
C. After
D. Unrelated to

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Question 4

There is a direct correlation between this unreplicated DNA and crossing over sites.

A. True
B. False

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Question 5

What is the percentage of DNA synthesized during zygotene?

A. 50%
B. 25%
C. 5%
D. 0.4%

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Question 6

What is the size of DNA that is left to be replicated in zygotene?

A. 100 bp
B. 1000kb
C. 104 bp
D. 104 kb

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Question 7

Which of the following events is seen in zygotene phase?

A. Synapsis
B. Recombination
C. Terminalization
D. Equatorial ring formation

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Question 8

Which of the following is true?

A. Zygotene is the phase preceding diplotene
B. DNA replicated in zygotene is incorporated in chromosome 5-6 days later
C. Synaptonemal complex formed is longer than the physical length of chromosomes itself
D. The pairing of chromosomes forces the DNA to replicate

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Question 9

Which of the following will not be seen in zygotene?

A. Synthesis of Histones
B. Synthesis of DNA
C. Formation of synaptonemal complex
D. Equatorial positioning of chromosomes

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Question 10

Which of the following will you expect to see in zygotene stage?

A. Condensed chromosome
B. Thin chromatid
C. Bead on a string model
D. O shaped chromosome

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Question 11

Which of the pairing is not feasible?

A. Pairing between homologous chromosomes
B. Pairing between homologous parts of non-homologous chromosome
C. Pairing between 4 chromosomes following translocation
D. Pairing between more than 2 chromosomes

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