What does recessive allele mean?

Answer 1

Recessive allele disorders are just as they sound - they are disorders that are a result of a prevalent recessive allele in one's genetic makeup. A recessive allele disorder will rarely occur since it is dependent on the crossing of two heterozygous parent cells, but it can lead to interesting consequences. An example of a recessive allele disorder is hemophilia - the body's inability to clot blood - and it has affected much of the European royalty in history, such as Queen Victoria of Great Britain.

Answer 2

A recessive allele is only detectable in a homozygous recessive genotype. If a recessive allele is in a heterzygous genotype (with a dominant and recessive), then the phenotype will be that of the dominant's allele.

In other words, recessive allele is masked by a dominant allele and cannot be easily detectable unless it is paired with another recessive allele.

Answer 3

A recessive allele is a variation of a gene that is only expressed in the phenotype if an individual has two copies of the recessive allele. In a heterozygous individual with one dominant and one recessive allele, the dominant allele will typically mask the expression of the recessive allele.

Answer 4

A recessive allele is the form of a gene that will only be expressed when the dominant allele is not present.

Answer 5

Recessive genes are the opposite of dominant genes. For example, out of blue and brown eye genes, blue eyes are the recessive and brown eyes are the dominant gene.

Answer 6

It will produce only one type of gametes, hence can be used as parent in the test cross