Scelta multipla
During mitosis in a human somatic cell (2n = 46), how many chromosomes will be present in each daughter cell at the end of cytokinesis?
116
views
16. Cell Division
Mitosis
Scelta multipla
In a typical diploid human somatic cell (2n = 46), how many chromosomes are present in each daughter cell immediately after mitosis is complete?
A
46 chromosomes
B
92 chromosomes
C
The number varies randomly depending on spindle attachment errors
D
23 chromosomes
Guida verificata passo dopo passo1
Recall that a typical diploid human somatic cell has 2n = 46 chromosomes, meaning it contains 46 chromosomes arranged in 23 pairs.
Understand that mitosis is a process of cell division that results in two daughter cells, each genetically identical to the original parent cell.
During mitosis, the chromosomes are duplicated during the S phase of the cell cycle, so the cell temporarily has 92 chromatids (46 chromosomes each consisting of two sister chromatids).
At the end of mitosis, sister chromatids separate and are distributed equally to the two daughter cells, so each daughter cell receives one copy of each chromosome.
Therefore, immediately after mitosis is complete, each daughter cell contains the same diploid number of chromosomes as the original cell, which is 46 chromosomes.
Video correlati
Pratica correlata
