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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.

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What does it mean when a trait is recessive?

The principle of excessiveness is defined as the explanation of why one trait will not show over another. If a trait is recessive it will not show when a dominant trait is present.


When a trait seems to disappear or doesnt show up often?

Recessive Trait


All individuals that show a recessive trait are?

recessive trait only appear when an individual is homozygous recessive, both alleles must code for the recessive trait


What is the only way a recessive trait will be expressed?

Breed/use only organisms showing the recessive trait for starters. If one of the parents or progenitor lines show the dominant trait then don't use their offspring. If the offspring of one of the oranisims show the dominant trait then remove both the parent of this offspring and this offspring showing the dominant trait from your program.


A trait that is hidden?

The trait that is hidden is recessive trait.


Why are two recessive alleles needed for a recesssive trait to be shown?

bcoz in case of one dominant and one recessive, dominant allele will express its characters and suppresses the recessive ones. so for the expression of recessive characters both allele should be recessive.


Will an offsping show a recessive trait if only one of its parents has the gene for that trait?

No


A recessive trait is one that?

doesn't show up


In order to have a recessive trait an organism must have what copies of he recessive allele?

In order to express a recessive trait, an organism must have two copies of the recessive allele, one inherited from each parent. This is because the presence of a dominant allele will mask the effect of the recessive allele, preventing the recessive trait from being expressed. Thus, only when both alleles are recessive will the trait be visible in the organism's phenotype.


What is the difference between a dominant trait and a recessive trait?

A dominate trait will most likely take over the recessive.


How can a recessive trait become more prevalent in a population?

A recessive trait can become more prevalent in a population through processes like genetic drift, founder effect, or natural selection favoring individuals carrying the recessive trait. Over time, these mechanisms can lead to an increase in the frequency of the recessive trait within the population.


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.

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