GENETICS. 4.1. 4.1.1 State that eukaryote chromosomes are made of DNA and proteins. Chromosomes are bundles of long strands of DNA. C hromosomes always come in pairs except in sex cells or gametes. Humans have 46 chromosomes in 23 pairs.
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Each vertical rod of chromosome is called a chromatid. The area where the chromatids are joined together is called the centromere.
as homologous pairs in
descending order of size