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When two homologous chromosomes start pairing
at the terminal which gradually progresses towards
the centromere known as
- a)Pro-terminal pairing
- b)Procentric pairing
- c)Random pairing
- d)Intermediate pairing
Correct answer is option 'A'. Can you explain this answer?
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When two homologous chromosomes start pairingat the terminal which gra...
Meiosis is characterised by pairing of homologous chromosome and crossing over. Depending upon the area of initiation, synapsis can be procentric (starting from centromeres), proterminal (starting from telomeric region and proceeding inwards), intermediate (random pairing starting at several points).
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When two homologous chromosomes start pairingat the terminal which gra...
Homologous Chromosome Pairing
Homologous chromosome pairing is a crucial step in the process of meiosis, which is a type of cell division that produces gametes (sex cells). This pairing allows for the exchange of genetic material between homologous chromosomes, leading to genetic diversity in offspring. When two homologous chromosomes start pairing, it occurs in a specific manner. Let's explore the different options and identify the correct one.
A: Pro-terminal pairing
- In pro-terminal pairing, the pairing of homologous chromosomes starts at the terminal ends.
- This means that the chromosomes begin pairing at the tips and gradually progress towards the centromere, which is the region that holds the sister chromatids together.
- Pro-terminal pairing is an essential step in meiosis and ensures proper alignment and exchange of genetic material between homologous chromosomes.
B: Procentric pairing
- Procentric pairing is not the correct term for the process described in the question.
- This term does not accurately describe the process of homologous chromosome pairing.
C: Random pairing
- Random pairing is also not the correct term for the process described in the question.
- Random pairing would imply that the pairing of homologous chromosomes occurs in a random and haphazard manner, which is not the case.
D: Intermediate pairing
- Intermediate pairing is not the correct term for the process described in the question.
- This term does not accurately describe the process of homologous chromosome pairing.
Therefore, the correct answer is A: Pro-terminal pairing. This accurately describes the process of homologous chromosome pairing, where the pairing starts at the terminal ends and progresses towards the centromere.
Homologous chromosome pairing is a crucial step in the process of meiosis, which is a type of cell division that produces gametes (sex cells). This pairing allows for the exchange of genetic material between homologous chromosomes, leading to genetic diversity in offspring. When two homologous chromosomes start pairing, it occurs in a specific manner. Let's explore the different options and identify the correct one.
A: Pro-terminal pairing
- In pro-terminal pairing, the pairing of homologous chromosomes starts at the terminal ends.
- This means that the chromosomes begin pairing at the tips and gradually progress towards the centromere, which is the region that holds the sister chromatids together.
- Pro-terminal pairing is an essential step in meiosis and ensures proper alignment and exchange of genetic material between homologous chromosomes.
B: Procentric pairing
- Procentric pairing is not the correct term for the process described in the question.
- This term does not accurately describe the process of homologous chromosome pairing.
C: Random pairing
- Random pairing is also not the correct term for the process described in the question.
- Random pairing would imply that the pairing of homologous chromosomes occurs in a random and haphazard manner, which is not the case.
D: Intermediate pairing
- Intermediate pairing is not the correct term for the process described in the question.
- This term does not accurately describe the process of homologous chromosome pairing.
Therefore, the correct answer is A: Pro-terminal pairing. This accurately describes the process of homologous chromosome pairing, where the pairing starts at the terminal ends and progresses towards the centromere.
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When two homologous chromosomes start pairingat the terminal which gradually progresses towardsthe centromere known asa)Pro-terminal pairingb)Procentric pairingc)Random pairingd)Intermediate pairingCorrect answer is option 'A'. Can you explain this answer?
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