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When will a recessive trait show its effect?
A recessive trait will be expressed when there is no dominant allele in the genotype for that trait. In a Mendelian trait, where one gene with one dominant and one recessive allele governs a trait, a recessive trait will be expressed when the individual's genotype for that trait is homozygous recessive, meaning that both of the individual's alleles for that trait are recessive.
What is a sentence for dominant trait?
A dominate trait is a trait that appears even if an organism has only one factor for the trait.
Will an organism with a recessive allele for a particular form of a trait will always exhibit that form?
Only when both genes in the pair are homozygous recessive, the expression will be masked, otherwise, if only one gene of the allelic pair is recessive and the other one is dominant, the expression of dominant gene will be apparent.
In which offspring does a dominant trait appear?
if a trait is recessive, it can only be expressed if its other trait is recessive as well. If the other trait in the genotype is dominant, it will block the recessive factor. But if both are recessive, they will be able to be seen in the offspring.
When is the only time a recessive phenotype can be observed?
A recessive phenotype can only be observed when the individual carries both the recessive alleles for the specific trait.
What does it mean that an organism is homozygous recessive for a trait?
That organism has two recessive alleles for that trait, one from each parent. It will display the recessive trait.
Trait of an organism that can be masked by the dominant form of a trait?
A recessive trait is one that is not expressed when paired with a dominant trait. It may only be visually evident when both copies of the gene carry the recessive form.
What is a sentence for dominant trait?
A dominate trait is a trait that appears even if an organism has only one factor for the trait.
When will a recessive trait show its effect?
A recessive trait will be expressed when there is no dominant allele in the genotype for that trait. In a Mendelian trait, where one gene with one dominant and one recessive allele governs a trait, a recessive trait will be expressed when the individual's genotype for that trait is homozygous recessive, meaning that both of the individual's alleles for that trait are recessive.
Will an organism with a recessive allele for a particular form of a trait will always exhibit that form?
Only when both genes in the pair are homozygous recessive, the expression will be masked, otherwise, if only one gene of the allelic pair is recessive and the other one is dominant, the expression of dominant gene will be apparent.
In which offspring does a dominant trait appear?
if a trait is recessive, it can only be expressed if its other trait is recessive as well. If the other trait in the genotype is dominant, it will block the recessive factor. But if both are recessive, they will be able to be seen in the offspring.
What is homogeneous recessive?
A "homogeneous recessive" trait in genetics is one that will be manifested only if an organism inherits the same recessive gene from both parents; otherwise, a "dominant" gene from either parent will determine the trait in question.
When is the only time a recessive phenotype can be observed?
A recessive phenotype can only be observed when the individual carries both the recessive alleles for the specific trait.
Why is it not necessary when the dominant and recessive traits are known to use the term homozygous when referring to the genotype of an individual that has a recessive phenotype?
An organism with a recessive allele from a particular form of a trait will exhibit that form only when the dominant allele for the trait is not present.
How can an organism have two different alleles for one trait but show one observable trait?
One allele would be dominant and the second allele would be recessive, so the organism would show only the dominant trait.
Organisms that are homozygous dominant and those that are for a trait controlled by simple dominance have the same phenotype?
Because the dominant gene always appears in the phenotype, whether or not it is "pure" (homozygous) or "mixed" (heterozygous). The recessive gene does what it says: it is recessive to the dominant gene. So, if it comes between the two, the dominant always appears. Of course, this only happens in your average Dominant-Recessive traits.
What type of trait is only seen if its gene is present in both gametes that unite to start the life of a new organism?
Recessive trait.This trait is only manifested if gametes from both parents pass on the gene to the new organism
