Jul 5, 2009
221
0
Status
Pre-Dental
I have a quick question.

organelles in zygote are all from the mother not half from its each parent?

could you explain a little more about this?
 

sfrice80

Blood, Sweat, and Beers
Jun 11, 2009
1,272
0
Minneapolis, MN
Status
Dental Student
Dad pretty much only donates a haploid nucleus to the embryo, mom provides an egg and all the nutrients and organelles needed. Thats about it. We had a long discussion once in my cellular evolution class about how males are evolutionarily really insignificant, some animals have even eliminated the need for males to reproduce. We consume half the resources, if not more, and only donate a haploid nucleus to the process of reproducing. I thought it was a pretty comical discussion. Sorry but that was kind of off topic. I hope I answered your question.
 
Jun 14, 2009
800
3
Status
Pre-Dental
I have a quick question.

organelles in zygote are all from the mother not half from its each parent?

could you explain a little more about this?
The only contribution from the male sperm is a haploid nucleus and maybe a centriole. Every other preexisting organelle you'd find inside a zygote originates from the oocyte. Every mitochondrion in your body comes from the ovum from your mom's side of the family.