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प्रश्न
The diagram shows a bivalent at prophase-I of meiosis. Which of the four chromatids can cross over?
उत्तर
In this case, non-sister chromatids can cross over. It is important to remember that crossing over always takes place between two non-sister chromatids and never between two sister chromatids.
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संबंधित प्रश्न
Prophase-I is subdivided into five phases based on ______.
At which stage of meiosis does the genetic constitution of gametes is finally decided ______.
A bivalent of meiosis-I consists of ______.
Given that the average duplication time of E.coli is 20 minutes, how much time will two E.coli cells take to become 32 cells?
In which phase of meiosis are the following formed? Choose the correct answer:
Formation of dyad of cells ______
Mitochondria and plastids have their own DNA (genetic material). What is known about their fate during nuclear division like mitosis?
A cell has 32 chromosomes. It undergoes mitotic division. What will be the chromosome number (N) during metaphase? What would be the DNA content (C) during anaphase?
The following events occur during the various phases of the cell cycle, Name the phase against the events.
Appearance of nucleolus ______
The following events occur during the various phases of the cell cycle, Name the phase against the events.
Division of centromere ______
Mitosis results in producing two cells which are similar to each other. What would be the consequence if the following irregularities occur during mitosis?
Nuclear membrane fails to disintegrate
