Question

In Meiosis, the daughter cells are not similar to that of a parent because of
(a) Crossing over
(b) Synapsis
(c) Both (a) and (b)
(d) None of the above

Answer 1

Hint: Meiosis is a type of cell division that is seen in germ cells,which are sperm and egg cells, that reproduces sexually and produces the gametes. It is the swapping of genetic material that results in the transfer of genetic material.

Complete answer:
In meiosis, the daughter cells are not similar to that of a parent because of crossing over in which the cells are different from parents cells because of the process of crossing over which occurs between homologous chromosomes and chromosomal segments which are exchanged between homologous chromosomes during the process of crossing over which is the main cause of variations.
-The separation of chromosomes in meiosis is termed disjunction and when the segregation is not normal it is known as nondisjunction.
-The production of gametes leads to too many or too few of a specific chromosome that's a standard mechanism for trisomy or monosomy.
-The trisomic and monosomic human embryos are not viable and can be tolerated for the smallest chromosome which is chromosome number 21 and phenotypes of these aneuploidies range from severe developmental disorders to asymptomatic.
-The swapping of genetic material that occurs in the germline is the crossing over which forms during the formation of egg and sperm cells which are known as meiosis and the paired chromosome from each parent gets aligned so that the similar DNA sequences from the paired chromosomes get to cross over one another.
-The shuffling of genetic material is the result of crossing over which is an important cause of genetic variation that is seen among offsprings.
-The paired chromosomes or homologs are lined up during losses on the meiotic plates and are known as paired chromosomes when they have the biological mechanism that sort of keeps them together.
-The chiasmata keep the strands of the duplicated homologous chromosomes which break and recombine with the same strand of another homolog.

So, the correct answer is 'Crossing over'.


Note:
-The process of meiosis is divided into 9 stages. These 9 stages are divided into two sets, the first time when the cell divides is termed as meiosis l, and the second time when it gets divided which is known as meiosis II.
-The chromosome is composed of two sister chromatids that contain identical genetic information and one cell divides to form four daughter cells during meiosis.