E) Homologous pairs of chromosomes align at the metaphase plate does not occur during prophase I of meiosis.
Which of the following event does not occur during prophase?
Which of the following events does not occur during prophase of mitosis? The mitotic spindle breaks down.
Which of the following events occurs during prophase 1?
Answer and Explanation: The correct answer is (c) synapsis and crossing over. During prophase I of meiosis, synapsis and crossing over take place. Crossing over is unique to…
What occurs in prophase 1 that does not occur in mitosis?
Explanation: Crossing over is the only answer choice that does not occur during mitosis. Crossing over occurs during prophase I of meiosis and involves swapping of genetic information between homologous chromosomes. This require the formation of tetrads, which does not occur during mitosis.
What is the function of prophase 1?
Prophase I highlights the exchange of DNA between homologous chromosomes via a process called homologous recombination and the crossover at chiasma(ta) between non-sister chromatids. Thus, this stage is important to increase genetic variation.
What happens during metaphase I?
In metaphase I, the homologous pairs of chromosomes align on either side of the equatorial plate. … The chromosomes begin moving toward the equator of the cell. During metaphase II, the centromeres of the paired chromatids align along the equatorial plate in both cells.
Which is not haploid?
Answer: Haploid describes a cell that contains a single set of chromosomes. … In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. the which are not haploid cells .
What is the correct order of steps in the cell cycle?
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.