LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which process causes the body of many-celled organisms to grow larger?
A
cellular respiration
B
cell division by mitosis
C
growth of individual cells
D
cell division by meiosis
Explanation: 

Detailed explanation-1: -Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes.

Detailed explanation-2: -The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue.

Detailed explanation-3: -At the molecular level, however, interphase is the time during which both cell growth and DNA replication occur in an orderly manner in preparation for cell division. The cell grows at a steady rate throughout interphase, with most dividing cells doubling in size between one mitosis and the next.

Detailed explanation-4: -This type of cell division not only allows the embryo and baby to grow, but it continues throughout life to repair the body or replace cells that have died. Unlike meiosis, the function of mitosis is to produce two identical daughter cells with exactly the same complement of chromosomes.

There is 1 question to complete.