Meiosis is Essential: In both ferns and humans, meiosis is the cornerstone of gamete formation. It ensures the reduction of chromosome number, preventing aneuploidy in offspring. The fundamental steps ...

Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each ...

BOSTON - A pair of achievements in the laboratory offer new tools for better understanding how gametes (reproductive cells) form, and may offer insights to help scientists "reprogram" adult cells to ...

The nucleus of a germline stem cell undergoes two divisions, firstly separating homologous chromosomes and secondly separating chromatids. Haploid gametes contain 23 single chromosomes. copies of the ...

The organs of a body are a spatial division of labour, one created by different genes being turned on or off in different cells. The same process serves to give individual lives a division of labour ...

The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...