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vladimir1956 [14]
3 years ago
15

Explain how chromosome behavior during meiosis ensures transfer of parental traits to offspring

Biology
2 answers:
gizmo_the_mogwai [7]3 years ago
6 0

Explanation:

During meiosis, sister chromosomes of a homologous pair separate into different cells during gamete formation . This mainly occurs in Metaphase I of meiosis where the homologous chromosomes line up the metaphase plate in their sets. Each chromosomes of a pair are then pulled to different poles of the cells separating them. Each of these chromosomes carries a set of alleles of a gene. Each cell/gamete, therefore, carried half the set of alleles of all genes compared to autosomal cells. There many combinations of these sets that can occur depending on the number of chromosomes the organism has.

These cells when combined with that of another parent during fertilization, form a zygote that grows and develops into a mature organism. The offspring will bear the characteristics of both parents because it inherits half a set of chromosomes from both parents.

Learn More:

For more on meiosis check out;

brainly.com/question/11701550

brainly.com/question/1271878

#LearnWithBrainly

Volgvan3 years ago
3 0

Answer:

The crossing over and the random segregation of homologous chromosomes into different daughter cells during meiosis ensures the transfer of parental traits to offspring.

Explanation:

Meiosis is a type of cell division in which four haploid daughter cells are produced from a diploid parent cell having two copies of each chromosome. The daughter cells produced after meiosis are genetically different and each cell is haploid containing one-half the number of chromosomes as that of the parent cell by undergoing DNA replication and nuclear division.

Meiosis I and meiosis II are the phases of meiosis. During the prophase of meiosis I, the condensation of chromatin into chromosomes occur and a contact is established between homologous chromosomes. Then the crossing over of genetic material between these chromosomes takes place. As a result, each chromosome is different from its parent chromosome and consequently, new genetic combinations are introduced. In the metaphase, the homologous chromosome pairs align at the center of the cell. Here half of each chromosome pair is positioned to each pole so that they do not end up in the same cell. During the anaphase, the homologous pairs are pulled toward the opposite poles. This chromosome behavior during meiosis ensures the transfer of parental traits to offspring.

In telophase, the chromosomes of each homologous pair reach the opposite poles and a new nuclear envelope develops around each haploid set of chromosomes. Chromatin is formed again as the chromosomes uncoil, cytoplasm pinches inward and divides (cytokinesis) forming two daughter cells.

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