Question 37

The phenotype will be like the dominant allele.

When the genotype consists of a dominant and a recessive allele, the resulting phenotype will express the traits of the dominant allele. This is due to the dominant allele's ability to mask the effects of the recessive allele.

A) Dominant

This option is correct because, in genetics, a dominant allele will determine the phenotype when paired with a recessive allele. The presence of the dominant allele leads to its traits being visibly expressed, overshadowing the recessive allele.

B) Recessive

This option is incorrect as the phenotype does not reflect the recessive allele when paired with a dominant allele. The traits associated with the recessive allele will only be expressed in the phenotype if the organism has two recessive alleles.

C) Both

This option is incorrect because the phenotype does not exhibit characteristics of both alleles when one is dominant. The dominant allele will mask the effect of the recessive allele, leading to the phenotype resembling only the dominant trait.

D) Neither

This option is incorrect as it suggests that the phenotype does not reflect any alleles present in the genotype. In reality, the phenotype will always reflect the dominant allele when it is present alongside a recessive allele.

Conclusion

The correct answer is A) Dominant because in a genotype containing both a dominant and a recessive allele, the dominant allele's traits will be expressed in the phenotype. All other options fail as they either misinterpret the relationship between dominant and recessive alleles or incorrectly suggest that neither allele influences the phenotype.