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The term you're looking for is "recessive allele." A recessive allele is only expressed in an organism's phenotype when two copies are present, meaning the corresponding dominant allele is absent. In other words, for a trait associated with a recessive allele to be visible, the individual must inherit the recessive allele from both parents. If at least one dominant allele is present, it will mask the expression of the recessive allele.
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When one allele shows dominance over another allele?
In cases of complete dominance, one allele, known as the dominant allele, masks the expression of the other allele, known as the recessive allele, in the heterozygous state. This results in only the dominant allele being expressed in the phenotype.
What is is the principal of dominance?
The principle of dominance states that in a heterozygous individual for a trait, only one allele (dominant allele) is expressed in the phenotype, masking the expression of the other allele (recessive allele). This dominance relationship is seen in Mendelian inheritance patterns.
Is recessive allele the one which is hidden whenever the dominant is present?
Yes, a recessive allele is only expressed when an individual has two copies of that allele (homozygous recessive) or when the dominant allele is absent. It is "hidden" in the presence of a dominant allele.
Does a recessive allele need another recessive allele to be expressed?
Yes, a recessive allele needs to be paired with another recessive allele in order to be expressed. This is because recessive alleles are only expressed when an individual has two copies of the recessive allele, one from each parent. If an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele will be expressed.
What is a Reciessive form of an allele?
A recessive form of an allele is one that is only expressed in the presence of another recessive allele.
When one allele shows dominance over another allele?
In cases of complete dominance, one allele, known as the dominant allele, masks the expression of the other allele, known as the recessive allele, in the heterozygous state. This results in only the dominant allele being expressed in the phenotype.
Under what condition is a single recessive allele expressed in a male?
A single recessive allele will be expressed in a male if he inherits that allele on his only X chromosome, as males have one X and one Y chromosome. This is because the presence of the recessive allele on the X chromosome has no dominant allele to mask its expression.
What is is the principal of dominance?
The principle of dominance states that in a heterozygous individual for a trait, only one allele (dominant allele) is expressed in the phenotype, masking the expression of the other allele (recessive allele). This dominance relationship is seen in Mendelian inheritance patterns.
Is recessive allele the one which is hidden whenever the dominant is present?
Yes, a recessive allele is only expressed when an individual has two copies of that allele (homozygous recessive) or when the dominant allele is absent. It is "hidden" in the presence of a dominant allele.
Does a recessive allele need another recessive allele to be expressed?
Yes, a recessive allele needs to be paired with another recessive allele in order to be expressed. This is because recessive alleles are only expressed when an individual has two copies of the recessive allele, one from each parent. If an individual has one dominant allele and one recessive allele for a particular trait, the dominant allele will be expressed.
What is a Reciessive form of an allele?
A recessive form of an allele is one that is only expressed in the presence of another recessive allele.
True or False In heterozygous individuals only the recessive allele is expressed?
In heterozygous individuals, only the dominant allele is expressed. The recessive allele is present, but not expressed
What is the term for an allele that is not expressed in the phenotype of a heterozygous individual?
incomplete dominance source: PH Bio textbook
A recessive trait can only be expressed when?
A recessive trait can only be expressed when an individual has two copies of the recessive allele, one inherited from each parent. If only one copy is present, the dominant allele will be expressed instead.
An allele that is dominated or cover up by another allele is called what?
An allele that is dominated or covered up by another allele is called a recessive allele. This means that the trait associated with the recessive allele is only expressed when an individual carries two copies of that allele.
When is a recessive allele for a trait expressed in the phenotype of an dividual?
A recessive allele for a trait is expressed in the phenotype of an individual only when the individual is homozygous for that allele, meaning it has two copies of the recessive allele (one from each parent). If the individual has at least one dominant allele for that trait, the dominant trait will be expressed instead. Therefore, the presence of the recessive phenotype is only visible when both alleles are recessive.
How is a recessive allele from a dominant allele?
its different because adominant allele is in charge
