Answer:
Genetic variation is caused by:
mutation
random mating between organisms
random fertilization
crossing over (or recombination) between
chromatids of homologous chromosomes during
meiosis
If we cross a homozygous blue oval plant with a homozygous white round plant
P: BBrr x bbRR
The resulting F1 progeny:
F1: BbRr
If we cross BbRr with bbrr
F2: 1/4 blue round plants (250 plants) ¼ blue oval plants (250 plants) ¼ white round plants (250 plants) and ¼ white oval plants (250 plants).
Answer:
Eukaryotes are organisms whose cells have a nucleus enclosed within membranes, unlike prokaryotes, which have no membrane-bound organelles.
Explanation:
Answer:
The Sun is basically the Sun is the original source of energy.