LABORATORY REVIEW
MITOSIS AND MEIOSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
4
|
|
|
6
|
|
|
16
|
|
|
32
|
Detailed explanation-1: -Each daughter cell receives only half the number of chromosomes from the parent cell. At this stage, a diploid cell with 16 chromosomes will have 8 chromosomes in the daughter cells. Since each chromosome has two sister chromatids attached at the centromere, there are a total of 16 sister chromatids.
Detailed explanation-2: -So, if the parent cell has 16 chromosomes, after meiotic division it will get reduced to half and thus, the daughter cells will have 8 chromosomes.
Detailed explanation-3: -Onion root tip cells have 16 chromosomes in each cell. How many chromosomes will the cell have at G1 phase, after S phase, and after M phase?
Detailed explanation-4: -23. If the diploid number of chromosomes for an organism is 16, each daughter cell after mitosis will contain 16 chromosomes.
Detailed explanation-5: -It is given that the number of chromosomes present in each onion root tip cell is 16. Hence, the number of chromosomes in the cell will be 16 at G1 phase, after S phase and after M phase. Also, if the DNA content after M phase is 2C. Hence, the DNA content at G1 phase will be 2C.