Which statement is true about identical twins? Group of answer choicesIdentical twins are very common.Somatic cells of identical twins contain different DNA.Identical twins start their life when two sperm cells fertilize two egg cells.Identical twins start their life when two sperm cells fertilize one egg cell.Identical twins start their life when early mass of dividing cells (originating from a zygote) splits in half.

The true statement about identical twins is: "Identical twins start their life when early mass of dividing cells (originating from a zygote) splits in half."

Here's why:

1. Identical twins are not very common. They occur in about 3-4 per 1,000 births worldwide.

2. The somatic cells of identical twins contain the same DNA, not different DNA. This is because they originate from the same fertilized egg.

3. Identical twins do not start their life when two sperm cells fertilize two egg cells. This scenario describes fraternal twins, not identical twins.

4. Identical twins also do not start their life when two sperm cells fertilize one egg cell. This is not possible because one egg cell can only be fertilized by one sperm cell.

5. Identical twins start their life when an early mass of dividing cells (originally from a single fertilized egg, or zygote) splits in two. Each of these halves develops into a separate individual, resulting in twins with identical genetic material.