Question 9
Which of the following correctly identifies the main role of mitosis and cytokinesis in multicellular organisms?
a
Replicate DNA
b
Increase genetic diversity
c
Produce gametes (sperm or eggs)
d
Growth and repair
d
To determine the correct answer, let's break down each option:
a) Replicate DNA: While mitosis does involve the replication of DNA, this is not its main role in multicellular organisms.
b) Increase genetic diversity: Increasing genetic diversity is not the main role of mitosis and cytokinesis in multicellular organisms.
c) Produce gametes (sperm or eggs): This is incorrect. Mitosis and cytokinesis are not involved in the production of gametes. The process of gamete production is known as meiosis.
d) Growth and repair: This is the correct answer. The main role of mitosis and cytokinesis in multicellular organisms is to facilitate growth and repair. This allows the organism to develop from a single fertilized egg into a fully grown adult and also helps in the repair of damaged tissues.
Therefore, the correct option is d) Growth and repair.