GROWTH DEVELOPMENT CHILD
GROWTH AND DEVELOPMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Half the number of the original cell
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The same number as the original cell
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Twice as much as the original cell
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None of the above
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Detailed explanation-1: -At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes.
Detailed explanation-2: -There are two ways cell division can happen in humans and most other animals, called mitosis and meiosis. When a cell divides by way of mitosis, it produces two clones of itself, each with the same number of chromosomes.
Detailed explanation-3: -DNA replication doubles the DNA content which is accommodated in two chromatids of each chromosome. The total number of chromosomes remains same. So, the given cell with 20 chromosomes will have the same number of chromosomes after DNA replication and before mitosis.
Detailed explanation-4: -The last stage is telophase in which the cell divides into two cells. Both the daughter cells after the telophase stage will have the same number of chromosomes. When there are 46 chromosomes at the initial stage of mitosis, then daughter cells will have 46 chromosomes.