Practice free Cell cycle and Cell Divisions (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
At which phase of meiosis, the 2 cell, each with separated sister chromatids move towards opposite poles :
During anaphase-II of meiosis, the sister chromatids are finally separated and move towards opposite poles. This is similar to the anaphase of mitosis but occurs in the second division of meiosis, resulting in haploid cells.
During meiosis crossing over occurs between which part of homologous chromosome ?
During meiosis, crossing over occurs between non-sister chromatids of homologous chromosomes. This process leads to the exchange of genetic material, resulting in genetic diversity in the offspring.
During mitotic metaphase :
During mitotic metaphase, the chromosomes are aligned at the equatorial plate (metaphase plate) of the cell. This alignment ensures that when the chromosomes are separated, each daughter cell will receive an identical set of chromosomes.
In meiosis the daughter cells are not similar to that of parent because of :
In meiosis, daughter cells are not similar to the parent cells primarily because of crossing over. This process involves the exchange of genetic material between non-sister chromatids, leading to genetic variation.
When synapsis is completed all along the chromosome, the cell is said to have entered a stage called :
When synapsis is completed all along the chromosome, the cell is said to have entered the pachytene stage. This is a sub-stage of prophase I in meiosis where homologous chromosomes are fully paired and crossing over occurs.
Synapsis occurs between :
Synapsis occurs between two homologous chromosomes. It is the pairing of homologous chromosomes during prophase I of meiosis, which allows for crossing over and recombination.
In diploid living organisms crossing over is responsible for ?
In diploid living organisms, crossing over is responsible for recombination of linked genes. This process occurs during prophase I of meiosis and leads to genetic variation by exchanging segments of DNA between homologous chromosomes.
Select the correct option with respect to mitosis.
During metaphase of mitosis, chromosomes move to the spindle equator and get aligned along the equatorial plate. This alignment is crucial for ensuring that each daughter cell receives an identical set of chromosomes during cell division.
During gamete formation, the enzyme recombinase participate during :
The enzyme recombinase is involved in the process of genetic recombination, which occurs during Prophase-I of meiosis. This stage is characterized by the exchange of genetic material between homologous chromosomes, leading to genetic diversity in gametes.
The time period between meiotic I and meiotic II cell division is called:
The period between meiotic I and meiotic II cell divisions is called interkinesis. Unlike interphase in the cell cycle, interkinesis is a short resting phase where the cell does not replicate its DNA but prepares for the second meiotic division.
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