CELL DIVISION
MEIOSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
2n (2 of each chromosome)
|
|
|
n (1 of each chromosome)
|
|
|
4n
|
|
|
1/2 n
|
Detailed explanation-1: -This number is abbreviated as 2n where n stands for the number of chromosomes. For humans, the diploid chromosome number equation is 2n = 46 because humans have two sets of 23 chromosomes (22 sets of two autosomal or non-sex chromosomes and one set of two sex chromosomes).
Detailed explanation-2: -The total number of chromosomes in diploid cells is described as 2n, which is twice the number of chromosomes in a haploid cell (n).
Detailed explanation-3: -Nullisomic is a condition in which diploid cells miss both copies of the same chromosome and are therefore called as 2n-2 It is caused by the meiosis nondisjunction. Fertilisation may be hampered by lack of genetic information. So the correct option is B i.e Nullisomic .
Detailed explanation-4: -A cell that contains both sets of homologous chromosomes is diploid, meaning “two sets.” The diploid number of chromosomes is sometimes represented by the symbol 2N.
Detailed explanation-5: -A diploid plant (2N=2X=14) would contain the following chromosome numbers depending on aneuploidy conditions: Aneuploidy. Somatic chromosome number.