Question

Amitosis is?
(a)Cleavage of the nucleus without the recognizable chromosomes
(b)Divisions in which chromosomes are unequally distributed
(c)A division in which chromosomes bridges are formed
(d)Spindles are formed

Answer 1

Hint: Mitosis is a process in which cells are divided evenly and amitosis is the opposite of the mitosis process, division doesn't take place equally.

Complete answer:
1. Amitosis (a- + mitosis), also called 'karyostenosis' or a direct cell division or binary fission.
2. It is cell proliferation that does not occur by mitosis, the mechanism is usually identified as essential for cell division in eukaryotes.
3. The polyploid macronucleus found in ciliates divides mitotically. The polyploid macronucleus found in ciliates divides mitotically.
4. While normal mitosis results in a precise division of parental alleles, amitosis results in a random distribution of parental alleles. 5. Ploidy levels in some species mean both parental alleles can be maintained over many generations, while species with fewer numbers of each chromosome will tend to become homozygous for one or the other parental allele through a process known as a phenotypic or allelic assortment. Thus the Correct answer is the B. option, a division in which chromosomes are unevenly distributed.

Additional Information: Amitosis does not involve maximal condensation of chromatin into chromosomes, observable by light microscopy as they line up in pairs along with the metaphase plate. It does not involve these paired structures being pulled in opposite directions by a mitotic spindle to form daughter cells. Rather, it affects nuclear proliferation without the involvement of chromosomes, unsettling for cell biologists who have come to rely on the mitotic figure as reassurance that chromatin is being equally distributed into daughter cells.
Thus the Correct answer is the B. option, a division in which chromosomes are unevenly distributed.

Note: The difference between Mitosis and Amitosis is, Mitosis is a process in which Cells are divided evenly into two.
Amitosis is a direct cell division or binary fission.