Answer:
1) All black and white offspring : Co-dominance
Co- dominance can be described as a condition when none of the alleles of a gene are dominant or recessive over the other. As a result, both the alleles show their phenotype in the offspring being born. For example, a black furred and a white furred parents produce an offspring carrying both the black and white fur colour.
2) All white offspring: white allele dominant
A dominant allele can be described as an allele which masks the effect of a recessive allele.
3) All gray offspring: Incomplete dominance
Incomplete dominance can be described as a scenario in which the dominant allele is not fully dominant over the recessive allele. As a result, offsprings with a third phenotype are born which was neither present in the male of the female parent.
4) All black offspring: black allele dominant
