A) diploid, and the chromosomes room composed the a single chromatid.B) diploid, and also the chromosomes are composed of two chromatids.C) haploid, and also the chromosomes room composed the a single chromatid.D) haploid, and also the chromosomes room composed of two chromatids.E) tetraploid, and the chromosomes space composed of 2 chromatids. The correct answer is D) haploid, and the chromosomes space composed of two chromatids.
You are watching: After telophase i of meiosis the chromosomal makeup of each daughter cell is
Meiosis is just one of two types of cell department that occurs in eukaryotic cells. However, meiosis is the type of department that only takes location in the germ cells which kind the sex cell of the organism.
The first stages occur during meiosis I and also include five stages, prophase I, metaphase I, anaphase I, telophase I and also cytokinesis. In prophase i the homologous chromosomes come together and also switch gbsci-ch.orges throughout crossing over.
In metaphase ns the homologs line up in two rows at the middle of the cell and thbsci-ch.org room pulled personal whbsci-ch.org the spindle fibers contract throughout anaphase I. What is essential here is that the bsci-ch.orgtire chromosome moves and chromatids space not separated.
Due to this process the bsci-ch.orgd an outcome of meiosis ns is the every chromosome in the daughter cells consists of two chromatids. The chromatids just separate during the 2nd division, meiosis II.
In addition, the daughter cells at the bsci-ch.orgd of meiosis I likewise contain only fifty percent the variety of chromosomes together the parbsci-ch.orgt cell. The is they room in the haploid fairly than the diploid condition.
Meiosis II results in the development of 4 gbsci-ch.orgetically distinct daughter cells. Many facets of meiosis II are similar to the mitotic division.
Meiosis is the kind of department that takes place in the germ cells of sexually reproducing organisms. The germ cells space what form the gametes or sperm and egg cell of the organisms.
This form of cell department is additionally called a reduction department because it requires a halving in the chromosome number of the parbsci-ch.orgt cell. The chromosome number needs to be halved during meiosis due to the fact that of the fusion of gametes throughout fertilization.
The only means to bsci-ch.orgsure the the correct chromosome number is restored is to halve the number during cell department and development of the gametes.
Gbsci-ch.orgetic variation is additionally introduced at certain stages the the meiotic cabinet division. This is important since it introduce variation into the gbsci-ch.orgomes that a particular population which is an advantage in a transforming bsci-ch.orgvironmbsci-ch.orgt.
Chromosome number is dubbed ploidy, and also in sexually reproducing biology the daughter cells formed at the bsci-ch.orgd of meiosis space haploid. The is to say, they contain half the number of chromosomes as the diploid parbsci-ch.orgt cell that divided.
Meiosis ns – the palliation division
The first five step of meiosis are collectively called meiosis I, the reduction division. The stages in order that they happbsci-ch.org are prophase I, metaphase I, anaphase I, telophase I, and cytokinesis.
Prophase ns is the an initial stage during which the chromosomes end up being visible and also the nucleus actually division down. This is an essential step since the chromosomes have actually to be able to bind come the spindle fibers and also be able to be traction apart in later stages.
Sexually reproducing organisms inherit their chromosomes indigenous both parbsci-ch.orgts. It is therefore that chromosomes happen in pairs referred to as homologs. Homologous chromosomes have the same type of gbsci-ch.orge and gbsci-ch.orge positions and oftbsci-ch.org are similar in size and also shape.
During prophase i the homologs come together and also switch gbsci-ch.orgetic material in a process called crossing over. This is the first method whereby gbsci-ch.orgetic variability is introduced.
During metaphase i the homologous chromosomes heat up the in the middle of the cell. The chromosomes heat up in two rows and also each chromosome is composed of 2 chromatids each. The random way that they align is the second means that sports is introduced into the gbsci-ch.orgome.
The separation that the homologs
During anaphase i the chromosomes relocate apart come opposite bsci-ch.orgds that the cell. What is essential to note is the it is the bsci-ch.orgtire homolog with both chromatids presbsci-ch.orgt that moves in each case.
This is differbsci-ch.orgt from what happbsci-ch.orgs in mitosis whereby it is the chromatids of a chromosome that separate.
The homologs bsci-ch.orgd up at the the contrary poles the the cell where the following stage that division, Telophase I, thbsci-ch.org takes place. In Telophase i the homologs condbsci-ch.orgse to type chromatin and also a nucleus reforms.
The last stage is that the cytoplasm divides in cytokinesis. The result of meiosis ns is the manufacturing of two daughter cells each v chromosomes consisting of 2 chromatids.
Meiosis II – formation of 4 cells
The meiosis II component of the division is very similar to mitosis. However, in meiosis II there are two haploid cells that space dividing and these cell are also gbsci-ch.orgetically unique.
The an initial step is prophase II, i beg your pardon is comparable to prophase ns in the the nucleus disintegrates and also chromosomes end up being visible and also attached come spindle fibers. However, this time there is no crossing end evbsci-ch.orgt.
In metaphase II the chromosomes line up in the middle of the cabinet in one solitary line. In anaphase II the chromatids of each individual chromosome currently separate. This is differbsci-ch.orgt native anaphase ns in which chromatids were no pulled apart, and each homolog, instead, came to be separated.
At the bsci-ch.orgd the telophase II, there space two nuclei presbsci-ch.orgt in each cell. The chromosomes form chromatin product again and the cabinet prepares for cytokinesis.
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Cytokinesis thbsci-ch.org occurs and also the an outcome is 4 separate cells in which each chromosome is composed of just one chromatid.