In this case, the black body colour is the dominant one. The white dog is homozygous recessive.
As the cross between the black female 2 and the white male results in all black pups. This means that the all the offsprings are heterozygotes and the Female 1 is homozygous recessive having a BB phenotype (where B codes for dominant allele).
As the cross between the black female and the white male results in four white and three black pups. This means that the all the black offsprings are heterozygotes, and the white ones are homozygous recessive and the Female 2 have a dominant and 1 recessive gene, and is a hetrozygotezygous recessive having a Bb phenotype (where B codes for dominant allele and b codes for recessive allele).
D. Geographic separation of a population
Answer:
B, a day would be exactly the same as a year.
Explanation:
I <em>think</em><em> </em>that it would mean that a day would be exactly the same as a year (B).
Cancer is a complex group of diseases that occurs when cells grow out of control and crowd out normal cells. While going through the cell cycle, cells that are not properly produced commit apoptosis, which is controlled cell death. If a bad cell does not commit apoptosis, when it divides, the cell and its daughter cells will produces mutated genes, which will form a tumor.
