Q:

Which of the following is the origin of the mitochondrial DNA of all human adult cells?

waelhammad
Save to bookmark
|
2022-11-10
|
  96 
0

Which of the following is the origin of the mitochondrial DNA of all human adult cells?

  1. Paternal only
  2. Maternal only
  3. A combination of paternal and maternal
  4. Either paternal or maternal
  5. Unknown origin
Medicine, textbook solutions, MCQ Questions, Medicine textbook-solutions, Medicine MCQ-questions,
login and add your own answer to this question

All Answers

waelhammad
2022-11-10
need an explanation for this answer? contact us directly to get an explanation for this answer

B. The mitochondrial DNA of all human adult cells is of maternal origin only. In human fertilization, the entire sperm enters the secondary oocyte cytoplasm. However, sperm mitochondria degenerate along with the sperm’s tail. Therefore, only mitochondria present within the secondary oocyte (maternal) remain in the fertilized zygote.

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Similar questions

need a help?

find thousands of online teachers now