The total DNA content of each daughter cell is reduced during meiosis because

A. half of the chromosomes from each gamete are lost during fertilization.
B. chromosomes do not replicate between meiosis I and II.
C. chromosomes do not replicate during the interphase preceding meiosis I.
D. chromosome arms are lost during crossing over.
E. sister chromatids separate during anaphase of meiosis I.

Respuesta :

Answer:

E) sister chromatids separate during anaphase of meiosis I.

Explanation:

Chromosomes are composed of two chromatids which are joined together through centromere. Chromosomes get doubled its chromatids during its S phase of Interphase. Although chromosomes number remains the same as after S phase but number of chromatids becomes double.

For Example:

In humans 46 chromosomes are present before S phase and 46 chromosomes after S phase. only difference is that chromatids before S phase is 46 in number while after S phase it becomes double i.e becomes 92.

During Prophase 1 of Meiosis 1 these 46 chromosomes with 92 chromatids get arranged in  manner that homologous chromosome pair comes close together and form 23 pairs.

During Metaphase 1: These 23 pairs get arranged in center and attached with spindle fiber present inside cells. Each spindle fiber attach to one member of the pair in a manner that 23 spindle fibers from one side of pole attached to one member of homologous chromosome pairs and 23 spindle fibers from other side of pole attached to other member of homologous chromosome pairs.

In Anaphase 1 of Meiosis 1 these spindle fibers get contracted and pulled attached chromosome along with them towards opposite poles. In this manner chromosome numbers in Meiosis become half as compared to the Mitosis

So Correct Answer of the question is

E. sister chromatids separate during anaphase of meiosis I.

Lanuel

The total deoxyribonucleic acid (DNA) content of each daughter cell is reduced during meiosis because: E. sister chromatids separate during anaphase of meiosis.

Cell division can be defined a process through which a living cell changes from a generalized cell type into a specialized cell type, that is used for performing specific functions or tasks in the body of a living organism.

Basically, the two (2) types of cell division include the following:

  • Mitosis.
  • Meiosis.

Meiosis is a type of cell division or duplication that occurs in all body cells found in living organisms, through which a single cell divides twice to produce four haploid cells (gamete).

Basically, there are five (5) phases that occur during meiosis and these include:

  • Prophase.
  • Prometaphase.
  • Metaphase.
  • Anaphase.
  • Telophase.

During anaphase of meiosis, the total deoxyribonucleic acid (DNA) content of each daughter cell is reduced during meiosis because sister chromatids divide or separate.

Chromatin is a complex form of deoxyribonucleic acid (DNA) and protein that are typically found in the cells of an eukaryotic organism.

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