If fertility had a shape, this would be it. Scientists have figured out the exact shape of part of a protein that sits on the outside of the egg and aids in fertilization. The results, which may ...

Failure of chromosomal organization within human egg and sperm cells result in miscarriages and infertility. However, the mechanisms controlling these processes are not understood. The discovery of a ...

This is a preview. Log in through your library . Abstract Female Fiordland Crested Penguins (Eudyptes pachyrhynchus) lay a clutch of two eggs, the second being significantly larger than the first. To ...

This is a preview. Log in through your library . Abstract A method is described for measuring and calculating the preexisting surface in uncleaved Xenopus eggs and the rate of surface growth in ...

To enable our fingernails to grow or new skin to form and heal an injury, our cells make copies of themselves — exact duplicates containing the same DNA, the combination of 46 chromosomes that makes ...

Why does making new egg cells require so much cell death? During egg production, roundworms create and then destroy oocytes with two nuclei Date: July 19, 2018 Source: PLOS Summary: A highly detailed ...

Investigators have employed mutant mice to study how the accumulation of genetic errors is managed during egg and sperm formation. Sometimes the best way to understand a biological process is to ...

Paleontologists digging in the Dhar district of Madhya Pradesh in central India have turned up a massive and rare hatching site belonging to a colony of titanosaurs, containing 92 nests and 256 eggs.