Your question: Which allele is masked?

Recessive is a quality found in the relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked.

What alleles can be covered up or masked?

Genetics Vocabulary Review

alleles alternate forms of a gene
recessive allele the allele that is masked or covered up when the dominant allele is present
dominant allele the allele whose trait always shows up if the allele is present
probability the likelihood that a particular event will occur

Which type of allele expression is masked by other alleles?


If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked. In codominance, however, neither allele is recessive and the phenotypes of both alleles are expressed.

What is an allele that is masked or hidden?

Recessive Allele. An allele that can be masked, or hidden, by the presence of another allele.

Is masked by a dominant allele for a trait?

Alleles produce phenotypes (or physical versions of a trait) that are either dominant or recessive. The dominance or recessivity associated with a particular allele is the result of masking, by which a dominant phenotype hides a recessive phenotype.

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How many alleles are in a gene?

An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene.

What are multiple alleles examples?

Two human examples of multiple-allele genes are the gene of the ABO blood group system, and the human-leukocyte-associated antigen (HLA) genes. The ABO system in humans is controlled by three alleles, usually referred to as IA, IB, and IO (the “I” stands for isohaemagglutinin).

What do multiple alleles mean?

: an allele of a genetic locus having more than two allelic forms within a population.

Are both alleles expressed?

In most cases, both alleles of a gene are transcribed; this is known as bi-allelic expression. … In these cases, only one allele of a gene is expressed. Which of the two alleles is expressed may be determined by the parental origin of the allele (such as in imprinting), or the choice may be random.

Which allele can be hidden?

6th grade Chapter 4 Science Review

an allele that can be masked, or hidden, by tht presence of another allele is classified as recessive
both alleles influence the phenotype, causing a blended appearance incomplete dominance
an organism that has two different alleles for a particular trait hybrid

When two alleles are the same they are?

Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two alleles differ. Alleles contribute to the organism’s phenotype, which is the outward appearance of the organism.

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