What is the structure called when bands are observed in the arms of chromosomes under an electron microscope?
- AGenes
- BNucleotides
- CNucleosomes
- DBase pairs
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Which of the following are used to define the karyotype of a species?
$1$. The number of chromosomes
$2$. The chromosome length
$3$. The positions of the centromeres
$1$. The number of chromosomes
$2$. The chromosome length
$3$. The positions of the centromeres
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