2 ms·
Fair enough, but let's go beyond bacteria. In plants and animals, am I right in thinking that the contribution of these extra-chromosomal components is primaril
by mannykannot 7y ago
Fair enough, but let's go beyond bacteria. In plants and animals, am I right in thinking that the contribution of these extra-chromosomal components is primarily from the female parent?
If I am not mistaken, there are several evolutionary explanations, such as for a 50-50 sex ratio being a stable equilibrium, and for the benefits of altruism, that assume an organism's fitness comes equally from the male and female parent. If, however, the female parent has significantly more contribution to the offspring's fitness, would that alter the calculus in these cases?
- TheSpiceIsLife 7y agoSounds about right. Humans inherit mitochondria only from the mother, and an egg cells is about 0.12mm vs a sperm cell at 50μm long. Edit: fixed a word