How is it different from prophase II of meiosis?

Chromosomes no longer remain in paired condition at the beginning of prophase II and the stage is not eventful, i.e. not subdivided in substages. Each chromosome is with two chromatids, but in prophase II chromosome number is just half of what it was in prophase I. It ends to pave way for metaphase II.

How is prophase I different from prophase II in meiosis?

The key difference between prophase I and prophase II is that the prophase I is the beginning phase of meiosis I, and there is a long interphase before it while the prophase II is the first phase of meiosis II without an interphase prior to it.

How is prophase 2 different in mitosis and meiosis?

Prophase II

These spindles which are basically microtubules start to capture the chromosomes. The distinguishing factor about this prophase and that of mitosis are that prophase II takes place with a haploid number of chromosomes while the mitotic prophase takes place with a diploid number of chromosomes.

IT IS SURPRISING:  What is the diploid number of this cell?

What happens during prophase 2 in meiosis?

During prophase II, the chromosomes condense, and a new set of spindle fibers forms. 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.

How is meiosis I different from meiosis II?

In meiosis I, homologous chromosomes separate, while in meiosis II, sister chromatids separate. Meiosis II produces 4 haploid daughter cells, whereas meiosis I produces 2 diploid daughter cells. Genetic recombination (crossing over) only occurs in meiosis I.

What is the major difference between prophase and telophase?

is that telophase is (biology) the final stage of mitosis or meiosis during which the daughter chromosomes move towards opposite ends of the nuclear spindle while prophase is the first stage of mitosis, during which chromatin condenses to form the chromosomes.

Which characteristic seen in prophase I of meiosis does not occur in prophase II?

C) During prophase I the chromosomes coil up; the chromosomes are not coiled up during prophase II.

What happens during prophase of mitosis and how it is different from prophase I and prophase II?

The first stage is called prophase in mitosis and prophase I or prophase II in meiosis I and meiosis II. During prophase, the nucleus is getting ready to divide. This means the nuclear envelope has to disappear and the chromosomes start to condense. … During prophase I, homologous chromosomes come together.

In what way is prophase I of meiosis similar to prophase of mitosis how is it different?

Prophase I of meiosis is similar to prophase of mitosis such that the nuclear envelope disassociates, and spindle fibers start to form. They are different in that synapsis and crossing over takes place in prophase I or meiosis.

IT IS SURPRISING:  Do chromosomes line up at the equator in anaphase 1?

What is a prophase II?

Prophase II is the phase that follows after meiosis I, or after interkinesis if present. If interkinesis takes place, the nuclear envelope and the nucleolus disintegrate during prophase II. The chromosomes are condensed. The centrosomes replicate and move towards the opposite poles.

What is the purpose of meiosis II?

The second round of cell division is meiosis II, in which the goal is to separate sister chromatids. Prophase II: Starting cells are the haploid cells made in meiosis I.

What is the necessity of meiosis 2 during formation of gametes?

Because meiosis creates cells that are destined to become gametes (or reproductive cells), this reduction in chromosome number is critical — without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes!