Cell Division
Chromosomes and genes · Two phases · Mitosis
Explain chromosomes, genes and genetics
Trace how a zygote becomes a body
Tell karyokinesis from cytokinesis
Describe mitosis and why it matters
Chromosome: thread-like, in the nucleus
Gene: a unit on a chromosome that decides a character
Sex chromosomes: main role in deciding sex
Genetics: the study of genes
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