Question

Meiosis ll fails after completion of meiosis l. This phenomenon
A. Brachymeiosis
B. Dinomitosis
C. Karyokinesis
D. Noni

Answer 1

Hint: Meiosis is a process of cell division where a single cell divides or splits two times to produce four daughter cells containing half the original amount of genetic information. Daughter cells produced are haploid. In meiosis cell division of germs cells occur to form gametes, they are egg or sperm cells. It occurs only in reproductive cells. Meiosis is known as the reductional division as the chromosome number is decreased from diploid to haploid. In meiosis, the chromosomes are further split into sister chromatids. In meiosis l, recombination and crossing over of genetic material between chromosome pairs occur.

Complete answer:
The phenomenon in which meiosis ll fails after completion of meiosis l is known as Brachymeiosis.
Brachy Meiosis occurs in the sexual reproduction of ascomycetes fungi.
It was hypothecated irregularity in the sexual reproduction of ascomycota fungi.
Dinomitosis is a cellular division that occurs solely in Dinophyceae class. It occurs in mesokaryotes.

Karyokinesis is a division of a cell nucleus during mitosis.
Noni is an evergreen plant with antiviral, antibacterial, antifungal, antitumor, analgesic, etc properties.
So, the correct answer is “Option A”.

Additional Information:
Brachy Meiosis is a variant of meiosis, it involves an extra karyogamy step.
Karyogamy refers to nuclear fusion.
In the process of brachymeiosis, four diploid nuclei are transformed into eight haploid ones.
According to current scientific knowledge, brachy meiosis does not occur in any fungi.

Note:
In the process of meiosis, a single cell divides or splits two times to produce four daughter cells containing half the original amount of genetic information. It occurs in germ cells only. Meiosis is the reductional division whereas mitosis is an equational division. The process in which meiosis ll fails after completion of meiosis l is known as Brachymeiosis. Brachy Meiosis has an extra karyogamy step. It takes place in the sexual reproduction of ascomycetes fungi.