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Why are recessive alleles not always expressed as the phenotype?
recessive alleles get masked to show the difference in a dominant gene and a recessive gene. the dominate genes masks the recessive genes to show that the dominate gene is more dominate or more likely to be the outcome than the reccessive gene but the masked gene is not always recessive.
Which trait will be expressed if both dominant gene and recessive gene are in the gene pair?
The current school of thought is that a dominant gene needs only a single copy to express its coding where as a recessive gene needs two copies of itself. The different forms of a gene are called alleles. Each parent contributes an allele. For example brown eyes and blue eyes. A blue eyed person would have two blue eye genes. A brown eyed person would have at least one brown eyed gene and either a blue or brown eyed companion. Hence two blue eyed people should only have blue eyed children. Two brown eyed people could possibly have either blue or brown eyed children. Science is discovering that genes interact in very complex ways. There is dominance, recessive, codominance, corecessive, and interactions between multiple genes to produce an outcome. While the reporting of DNA research and discoveries may make it seem we have an understanding of how genes work the reality is that the study of DNA and its functions is still in its infancy.
A gene is recessive when?
Most genes have two copies of each gene with dominant gene "trumping" the recessive one. The gene is recessive because it is said not to do much of anything unless paired with another recessive gene, but if paired with a dominant gene, the dominant gene wins.
How do dominate traits over power the recessive?
Dominant traits are expressed over recessive traits because the dominant allele codes for a functional protein that masks the effects of the recessive allele. In a heterozygous individual carrying one dominant and one recessive allele, the dominant allele is expressed, leading to the dominant trait being observed.
How many copies of a recessive gene does it take to overpower a dominant gene?
It takes 8 copies of a recessive gene to overpeower dominant gene
Are alleles dominant or recessive?
Alleles are neither entirely recessive nor entirely dominate. An allele is any one of a number of alternative forms of the same gene on a chromosome.For example: say a flower only blooms either red or white flowers. There is a different allele for each color-- a red allele and a white allele. Now, one color may be dominate over the other recessive gene. For example, if the red color was dominate and the white color was recessive, then those certain alleles would be dominate and recessive, respectively. But alleles in general cannot be either recessive or dominate. It depends on the gene and it depends on the trait.
Why are traits controlled by recessive alleles on the X chromosome are more common in males than in females?
Males only have one X chromosome, so even if the gene on that chromosome is recessive there is no other gene that could dominate it. Females have two X chromosomes, so if the gene on that chromosome is recessive there is still a chance that the gene on the other chromosome could be dominate and override it.
What is a reccesive gene?
A recessive gene is a gene that is only expressed if an individual has two copies of it, one inherited from each parent. In the presence of another dominant gene, the recessive gene's trait is not expressed.
What is a genotype with one dominant and one recessive gene?
The genotype of a person with one dominate allele for a gene and one recessive would be expressed as Aa or Yy. You can use any letter you would like except one will be shown as a capital (dominate) and one as a lower case (recessive). This combination is heterozygous for that trait.
Recessive allele different from dominate allele?
You need two recessive alleles to get their trait, but only one dominant allele to get that trait. A dominant allele basically overrides a recessive one if they are together, but the recessive gene can show up in offspring.
Why are recessive alleles not always expressed as the phenotype?
recessive alleles get masked to show the difference in a dominant gene and a recessive gene. the dominate genes masks the recessive genes to show that the dominate gene is more dominate or more likely to be the outcome than the reccessive gene but the masked gene is not always recessive.
What are two forms that a gene or allele may take?
A gene or allele may take a dominant form, or a recessive form. If the allele is recessive, the characteristic which is coded for will be exhibited only if both the gene from the male and the gene from the female is recessive. Only one copy of a dominant allele is required to cause expression of the dominant characteristic
What is heterozygous dominate genotype?
It's actually just heterozygous. That means that one allele is dominant and one allele is recessive. The result is a dominant trait, but the recessive gene may come back in future generations.
Which trait will be expressed if both dominant gene and recessive gene are in the gene pair?
The current school of thought is that a dominant gene needs only a single copy to express its coding where as a recessive gene needs two copies of itself. The different forms of a gene are called alleles. Each parent contributes an allele. For example brown eyes and blue eyes. A blue eyed person would have two blue eye genes. A brown eyed person would have at least one brown eyed gene and either a blue or brown eyed companion. Hence two blue eyed people should only have blue eyed children. Two brown eyed people could possibly have either blue or brown eyed children. Science is discovering that genes interact in very complex ways. There is dominance, recessive, codominance, corecessive, and interactions between multiple genes to produce an outcome. While the reporting of DNA research and discoveries may make it seem we have an understanding of how genes work the reality is that the study of DNA and its functions is still in its infancy.
Is mutation dominate or recessive?
it depends on what mutation you speak of. some are and some are not.
Genes that are only seen when paired with a recessive gene?
if u have a recessive gene with a recessive gene then u can see the recessive gene but if you have a dominant gene with a recessive gene you can only see the dominant gene hope that helps:)
Which of these is a gene that does not express itself and is concealed by the presence of another gene of the same trait?
A recessive gene is a gene that does not express itself in the presence of a dominant gene of the same trait. When an individual inherits two recessive genes for a trait, the recessive gene will be expressed.
