Examlex
Explain the role that gene duplication may play in genome evolution.
Mitotic Spindle
A structure composed of microtubules that separates chromosomes into daughter cells during cell division.
Centromere
The region on a chromosome where two sister chromatids are joined and where the spindle fibers attach during cell division.
Animal Zygote
The initial cell formed when two gamete cells (egg and sperm) are joined by means of sexual reproduction, marking the beginning of a new organism's development.
Haploid Cell
A cell that contains a single set of chromosomes, half the diploid number, typical of gametes.
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