Kateverdefloridn
Answered

Sumali sa IDNStudy.com at tuklasin ang komunidad ng pagbabahagi ng kaalaman. Anuman ang kahirapan ng iyong mga tanong, ang aming komunidad ay may mga sagot na kailangan mo.

reflection about Meiosis only please help.. ​

Sagot :

Chimmy0613idn

Answer:

Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually.

A few eukaryotes, notably the Bdelloid rotifers, have lost the ability to carry out meiosis and have acquired the ability to reproduce by parthenogenesis.

Meiosis does not occur in archaea or bacteria, which reproduce via asexual processes such as mitosis or binary fission.

During meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA packaged into chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called gametes.

Each gamete contains one complete set of chromosomes, or half of the genetic content of the original cell.

These resultant haploid cells can fuse with other haploid cells of the opposite sex or mating type during fertilization to create a new diploid cell, or zygote.

Thus, the division mechanism of meiosis is a reciprocal process to the joining of two genomes that occurs at fertilization.

Because the chromosomes of each parent undergo genetic recombination during meiosis, each gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA.

In other words, meiosis and sexual reproduction produce genetic variation.

Meiosis uses many of the same biochemical mechanisms employed during mitosis to accomplish the redistribution of chromosomes.

There are several features unique to meiosis, most importantly the pairing and genetic recombination between homologous chromosomes.

Edges7gsmidn

Reflection: Mitosis and Meiosis

Every organism goes through a series of cell division in order to survive, and there are two different kinds of cell division: mitosis and meiosis. Although they are all kinds of cell division, they are quite different between the two kinds. So what is mitosis and meiosis?

Every organism goes through a series of cell division in order to survive, and there are two different kinds of cell division: mitosis and meiosis. Although they are all kinds of cell division, they are quite different between the two kinds. So what is mitosis and meiosis?In mitosis, a cell divides into two completely identical cells, while in meiosis, a cell divides into four genetically different cells. In the first step of both kinds of cell division, the cell copies its DNA and chromosomes. After that, it enters the second stage of the cell cycle, where the duplicated chromosomes condense into an X shape.

Every organism goes through a series of cell division in order to survive, and there are two different kinds of cell division: mitosis and meiosis. Although they are all kinds of cell division, they are quite different between the two kinds. So what is mitosis and meiosis?In mitosis, a cell divides into two completely identical cells, while in meiosis, a cell divides into four genetically different cells. In the first step of both kinds of cell division, the cell copies its DNA and chromosomes. After that, it enters the second stage of the cell cycle, where the duplicated chromosomes condense into an X shape.Now let’s talk about the difference between mitosis and meiosis. In mitosis, it will only encounter 1 prophase, metaphase, anaphase, and telophase during the process. But in meiosis, it will encounter 2 prophase, metaphase, anaphase, and telophase. Plus, the prophase stage in meiosis is slightly different then the prophase in mitosis – genes can switch between the homologous chromosomes in the prophase stage of meiosis. The differences between mitosis and meiosis makes the result of meiosis become 4 genetically different cells.

NOTE: Cant find the answer? try finding it in the stanza 3

Edges7gsm your helper

Ang iyong presensya ay mahalaga sa amin. Patuloy na magbahagi ng iyong karanasan at kaalaman. Ang iyong ambag ay napakahalaga sa aming komunidad. May mga katanungan ka? Ang IDNStudy.com ang may sagot. Bisitahin kami palagi para sa pinakabagong impormasyon.