Question

What does an egg contribute to the embryo that a sperm does not contribute?

a. polar bodiesb. organellesc. DNAd. germ cells

Answer 1

Answer;

B. organelles

Explanation;

• Eggs contribute 50% of the chromosomes as well as cytoplasm and cellular mechanisms required for the cell to thrive and replicate.
• Mitochondria for example are particularly important to the embryo but are only passed from mother to child via the egg.
• Sperms on the other hand, are just packets of DNA.