Question

Jatin's friends tell him that he looks so much like his father. Which of the following is the most valid reason for this resemblance?

• A. It is just a coincidence
• B. Jatin inherited half of his chromosomes from his father
• C. His father's mitochondria got transferred into Jatin's cells
• D. Jathin inherited mitochondrial DNA from his father.

Answer 1

The correct option is B Jatin inherited half of his chromosomes from his father

The process of passing the traits and characteristics from parents to offsprings is called heredity.
Cells in the human body have 23 pairs of chromosomes, making a total of 46. During sexual reproduction, Jatin receives half of his chromosomes from his mother's egg and the other half from his father's sperm cell. So its just not a coincidence that Jatin resembles his father.
Offsprings inherit mitochondrial DNA from their mother.