Because there are 23 chromosomes in the haploid cells. Chromosomes from each haploid cell (sperm/egg) come together to from a diploid cell, meaning that the 23 chromosomes from the sperm have intermixed with 23 chromosomes in haploid cells of the egg so this is you answer hope this helped
Answer:
1/4 or 25%.
Explanation:
It is an example of<u> incomplete dominance </u>which is a form of Non-Mendelian inheritance pattern. In this kind of inheritance, the dominant allele is unable to mask the expression of recessive allele completely so the heterozygous off-springs rather than acquiring dominant phenotype acquire a phenotype which is a blend or we can say intermediate between dominant and recessive phenotype.
Let us suppose homozygous brown-eyed sheep has genotype 'BB' and homozygous green-eyed sheep has genotype 'bb'. Their cross will produce all progeny with 'Bb' genotype which have an intermediate eye color which is blue.
The cross between two blue eyed sheep is depicted as under:
Bb x Bb
/ \ / \
Progeny: BB Bb Bb bb
From the results of cross above, we can easily infer that 1 out of the 4 probable progeny 1 will have brown eyes. So the probability is 1/4 or 25%.
