'Geneticists know that human beings typically have 23 pairs of these; fruit flies have only 4 pairs'
chromosomes
SCIENCE CLASS: Geneticists know that human beings typically have 23 pairs of these; fruit flies have only 4 pairs
Geneticists know that human beings typically have 23 pairs of these; fruit flies have only 4 pairs
Geneticists know that human beings typically have 23 pairs of these; fruit flies have only 4 pairs
SCIENCE CLASS
chromosomes
SCIENCE CLASS