I was reading up on KCNQ1, which encodes a voltage-gated potassium channel, and I discovered that it…
So, there are numerous species of animals who use parthenogenesis, but to my knowledge the reproduct…
Does a female animal that lays eggs experience a pregnancy-like period of time, where she will feel …
How to know if a human female is fertile (can give birth to child in future) without making her preg…
Parthenogenesis is defined as: "A type of asexual reproduction in which egg develops without fertil…
I'm curious on how genetically different can two animals be in order to reproduce. Could they belong…
Cell motility assessment is a branch of experimental biology or medical science. One example could b…
To start with, I do not have a sound knowledge in biology or any formal education in the area. I wa…
I know that ingesting testosterone and other hormonal drugs may stimulate libido and increase sexual…
Antheridia and archegonia are the two male and female gametangia, respectively, and they are found i…
Dictyostelium is a slime mold which is well known for having a single cell free living phase and oth…
If a hermaphrodite animal (like slug, snail, etc) finds a partner they can mate immediately. If ano…
As far as I know the fetus is fed by the umbilical cord which basically connects his/her circulatory…
Who has a more varied reproduction rate in modern western societies - men or women? The average rate…
I have given my high school biology students the thought experiment of "What would happen if a resea…
I want to know can $+ve$ and $-ve$ blood group of a couple could be a cause of miscarriage in pregna…
Is every component of a virus absolutely essential for its infection and replication in a host cell?…
It seems unlikely that an ovoviparous ancestor of mammals long ago could have had a viviparous offsp…
Is one part of the day more prevalent then other when it comes to mammal animals mating? Is there an…
What is the probability of conception in situations when sperm isn't directly ejaculated into the wo…
I read that they take up to 40 years (in the wild) to reach the age of reproduction and are thought …
I seem to recall from either reading or lecture that there have been instances of trees that are sel…
I was reading recently that the age of menarche has decreased in the last 150 years, and was wonderi…
Question: From a physiological point of view, when sex is determined in a human fetus, is it equally…
What makes mammals tend to evolve to have two testes?
When a prokaryote undergoes binary fission, how are the non-DNA macromolecules distributed between t…
My wife and I recently found out that we are going to have twins and so nearly everyone asks if we h…
Hijra are people who have a penis (not sure if sexually active) but look much like a female (perhaps…
I'm looking for data to build a timeline of the odds for survival of a fertilized egg, i.e., What…
I've read a little about hybrid animals, and have been amazed by the fact that the gender of the par…
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