Human females, for example, are born with hundreds of thousands ... Meiosis II resembles a mitotic division, except that the chromosome number has been reduced by half. Thus, the products of ...

In humans and many other animals, specific chromosomes determine sex. But how did researchers discover these so-called sex chromosomes? The Sex of Offspring Is Determined by Particular Chromosomes ...

Autosomal chromosomes are homologous, meaning they code for similar traits. For example, the two copies of chromosome 1 will have copies of the same genes — one from each parent. Sometimes one ...

X chromosomes are expressed differently depending ... there are some commonalities. For example, males tend to be stronger, bigger, and have deeper voices. They also enter puberty later than ...

Chances are you've seen an illustration of DNA's double-helix structure and even pictures of the chromosomes that comprise the human genome. But where and how does the famous double helix fit into ...