MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

DIFFERENTIATED CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Before a cell enters mitosis, what happens to the genetic information in that cell?
A
The information is completely changed.
B
The information is halved.
C
The information is duplicated.
D
The information is selectively mutated.
Explanation: 

Detailed explanation-1: -The chromosome number is the same in the daughter cells as it was in the parent cell. Because DNA is duplicated during interphase before the cell undergoes mitosis, the amount of DNA in the original parent cell and the daughter cells are exactly the same.

Detailed explanation-2: -Before cells divide, the chromosomes become more tightly packed into a condensed form which can be seen through a microscope. Chromosomes always come in pairs. Human beings have 22 pairs of chromosomes that look identical, also known as autosomes.

Detailed explanation-3: -DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.

There is 1 question to complete.