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What makes a dominant allele different from a recessive allele?
zarr1s
Verified answer
A dominant alle masks the expression of the recessive trait in a heterozygous genotype, a recessive allele is the phenotpye expressed is the recessive trait.
Selina Corwin
Wiki User
∙ 11y agoWiki User
∙ 10y agoEach human have two copies of each of our gene - one from the mother, one from the father. Each copy is called an allele. The instructions of the mother and father allele need not be the same.
Examples of why alleles are dominant or recessive?
Some proteins are dominant over other proteins and the allele having the dominant protein becomes the dominant allele.
Sometimes one allele may make a broken protein. This allele becomes nonfunctional and shuts off. In this case the functional allele becomes the dominant allele and takes over.
Red hair is a recessive allele. There is a protein called MC1R. The job of the MC1R is to get rid of all the red pigment. When the MC1R does not work properly there is a build up of the red pigment and the end result is red hair.
Wiki User
∙ 14y agoIf an allele is dominant, whenever it's in the presence of another allele, dominant or recessive, the trait that the dominant allele carries is present in the organism. If an allele is recessive, the trait that the recessive allele carries is only present in an organism when there is another recessive allele.
Wiki User
∙ 13y agoAlleles come in pairs, they can be either dominant or recessive. So X is dominant for brown eyes, and x is recessive for blue eyes. If you have a parent who is Xx and the other is Xx then the kids will be a mix. XX, Xx,Xx,xx -
zarr1s
(Apex Learning) The dominant allele determines the trait.
Jolie Lind
Michael Kreiger
Myrtis Lang
Wiki User
∙ 12y agoIt all depends on the nature of a gene's protein product and its role in the cell. Go genes!
Wiki User
∙ 14y agohttp://answers.Yahoo.com/question/index?qid=20090121184808AA88qVP
i dont copyright :) but that link has your answer!
Wiki User
∙ 12y agoThe different forms of a gene.
What makes dominant alleles different from recessive alleles?
It's in the word! Dominant means bigger or stronger or greater. So the dominant allele is the stronger gene that is going to show whereas the recessive allele is still in you, but is overshadowed by the dominant allele.
How are dominant and recessive genes related?
Dominate them. Recessive alleles do not show in your phenotype unless you have two of the same recessive allele. But if you inherit one dominant and one recessive, it is the dominant that always shows in your phenotype.
Why are most mutations recessive?
Mutations are changes in the DNA. A mutation can change a gene slightly, giving a different allele. The new allele can code for a slightly different protein. If the normal allele codes for an active enzyme, the new allele may still code for the same active enzyme, may code for an inactive protein, or may code for an active enzyme that catalyzes a different reaction. Of these options, coding for the same active enzyme may be the most common, but then we don't usually notice there's been a mutation. Coding for an inactive protein is the next most likely outcome. So, most of the time when there is a mutation that produces any noticeable effect at all, it produces an allele that codes for an inactive protein. A heterozygote Aa produces some active enzyme and some inactive protein. Most often, one "dose" of active enzyme catalyzes the normal reaction enough to produce a normal appearance, so we say that the allele A is dominant, and the mutant allele a is recessive. There are plenty of exceptions. Certain types of dwarfism in humans are caused by a dominant mutant allele, for instance. Still, it's probably true that the majority of mutant alleles are recessive.
What is dominant lethal allele?
Dominant lethal is a genetic trait. If the genome of an individual has the trait, it is expressed and makes it impossible for the individual to have descendants. Its effects cause foetal or embryonic death.
What is the difference between a dominant trait and a recessive trait?
A dominate trait will most likely take over the recessive.
What makes a dominant allele different from recessive Allie?
A dominant alle masks the expression of the recessive trait in a heterozygous genotype, a recessive allele is the phenotpye expressed is the recessive trait.
What makes dominant alleles different from recessive alleles?
It's in the word! Dominant means bigger or stronger or greater. So the dominant allele is the stronger gene that is going to show whereas the recessive allele is still in you, but is overshadowed by the dominant allele.
What makes a dominant allel different from?
A dominant alle masks the expression of the recessive trait in a heterozygous genotype, a recessive allele is the phenotpye expressed is the recessive trait.
What makes a dominant alleles different from a recessive alleles?
A dominant alle masks the expression of the recessive trait in a heterozygous genotype, a recessive allele is the phenotpye expressed is the recessive trait.
Explain segregation of alleles using pea plants?
if the pea plant has 2 recessive alleles then the plant is gonna come out short.but if it has 1 recessive and one dominant allele then the plant turns out tall, because the dominant allele can be present without the recessive allele.
How are dominant and recessive genes?
If you are talking about traits, dominant traits and recessive traits both have alleles. Dominant traits are alleles that cover up the expression of other alleles. One dominant allele with one recessive allele makes a dominant trait. Two dominant alleles together also make a dominant trate. Recessive traits are alleles that are only expressed when there is no dominant trait to cover them up. Two recessive alleles make a recessive trait. Traits can be passed over to the next generation. Two alleles together make a genotype, which is the inherited combination of alleles. Alleles: different versions of the same gene. Heredity: determined by genes. Genes: piece of DNA that shows the cell how to make a protein it needs.
How are dominant and recessive genes related?
Dominate them. Recessive alleles do not show in your phenotype unless you have two of the same recessive allele. But if you inherit one dominant and one recessive, it is the dominant that always shows in your phenotype.
How are recessive and genes related?
If you are talking about traits, dominant traits and recessive traits both have alleles. Dominant traits are alleles that cover up the expression of other alleles. One dominant allele with one recessive allele makes a dominant trait. Two dominant alleles together also make a dominant trate. Recessive traits are alleles that are only expressed when there is no dominant trait to cover them up. Two recessive alleles make a recessive trait. Traits can be passed over to the next generation. Two alleles together make a genotype, which is the inherited combination of alleles. Alleles: different versions of the same gene. Heredity: determined by genes. Genes: piece of DNA that shows the cell how to make a protein it needs.
What is the pedigree of a rare recessive phonotypr determined by a recessive allele?
this question makes no sense.
A pair of dominant or recessive alleles makes you?
I can't work any thing
Why are most mutations recessive?
Mutations are changes in the DNA. A mutation can change a gene slightly, giving a different allele. The new allele can code for a slightly different protein. If the normal allele codes for an active enzyme, the new allele may still code for the same active enzyme, may code for an inactive protein, or may code for an active enzyme that catalyzes a different reaction. Of these options, coding for the same active enzyme may be the most common, but then we don't usually notice there's been a mutation. Coding for an inactive protein is the next most likely outcome. So, most of the time when there is a mutation that produces any noticeable effect at all, it produces an allele that codes for an inactive protein. A heterozygote Aa produces some active enzyme and some inactive protein. Most often, one "dose" of active enzyme catalyzes the normal reaction enough to produce a normal appearance, so we say that the allele A is dominant, and the mutant allele a is recessive. There are plenty of exceptions. Certain types of dwarfism in humans are caused by a dominant mutant allele, for instance. Still, it's probably true that the majority of mutant alleles are recessive.
What does the q represent in hardy-weinberg equation?
It depends on what you make p equal to. P is usually the frequency of the dominant allele, which makes q the frequency of the recessive allele, but they can be switched. As long as p is one frequency and q is the other, the formula will work. So if you have the dominant allele frequency (A) =.6 then the recessive allele frequency (a) =.4, because p+q=1 When you plug the frequencies into the hardy-weinberg equation p^2 +2(p)(q) + (q)^2 = 1 then you have (0.6)^2 + 2(0.4)(0.6) + (0.4)^2 = 1 (0.6)^2 = 0.36 which is the frequency of dominant homozygotes 2(0.4)(0.6)=0.48 which is the frequency of heterozygotes (0.)^2 = 0.16 which is the frequency of recessive homozygotes If you have a population of 100 people, these frequencies would mean that: 36 people would be AA 48 people would be Aa 16 people would be aa Which would mean that 36+48=84 people would exhibit the dominant trait and 16 people would show the recessive trait.
