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Is albinism controlled by a dominant allele or by a recessive allele?
Recessive allele.
Albinism is a recessive trait in humans that is controlled by a single gene how many recessive alleles must a person have to have albinism?
2
Is straight hair controlled by a dominate allele or recessive allele?
Straight hair is typically controlled by a dominant allele. Curly hair is usually controlled by a recessive allele.
Is albinism a dominat or reccesive trait?
Albinism is a recessive trait which will result in a lack of pigmentation in the skin eyes and hair. It occurs about 1 in every 17,000 people in the U.S.
What carrier of a trait controlled by a allele does not express the trait?
A carrier of a trait controlled by a recessive allele possesses one copy of the recessive allele and one copy of the dominant allele. This means that they do not express the trait associated with the recessive allele because the dominant allele masks its effect. However, the carrier can pass the recessive allele to their offspring, who may express the trait if they inherit two copies of the recessive allele.
What is allele masked by the dominant allele?
An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).
Two parents with normal pigmentation give birth to a child with albinism albinism is not a what?
Albinism is not a dominant trait; it is a recessive genetic condition caused by mutations in genes responsible for melanin production. Both parents can be carriers of the recessive allele for albinism, meaning they have normal pigmentation but can pass the allele to their child, resulting in the child having albinism.
How can albinism in plants keep occurring if they cannot reproduce?
because the recessive allele is still present in heterozygous individuals. these individuals have one dominant allele and so show the dominant phenotype but they are capable of producing offspring with the recessive condition
How is albinism controlled by a recessive allele?
Albinism is a genetic condition caused by mutations in genes responsible for producing melanin, the pigment that gives color to skin, hair, and eyes. It is typically inherited as an autosomal recessive trait, meaning that an individual must inherit two copies of the recessive allele—one from each parent—to express the condition. If a person has only one copy of the recessive allele, they are considered a carrier but will not show symptoms of albinism. Thus, the presence of the recessive allele must be homozygous (two copies) for the phenotype of albinism to manifest.
What combination of alleles could produce a trait controlled by a dominant allele?
genotype
Is albinism a recessive trait or dominant?
Recessive. The trait will only show up if both parents have the gene recessively (aa). If the genetic make up is Aa or AA, there will be melanin production, meaning albinism is an aa gene only. Albinism is a recessive allele.
In one allele is dominant to a recessive allele?
In a dominant-recessive allele relationship, the dominant allele will be expressed phenotypically over the recessive allele. This means that even if an organism carries one dominant and one recessive allele for a particular trait, the dominant allele will determine the observable characteristic.
