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In sheep the allele for white wall parentheses A is dominant over the allele for black wall parentheses a how do you determine the genotype of a white ram or male sheep?
Wiki User
∙ 6y ago
To determine the genotype of a white ram, breed him with black females. Black females are homozygous recesive for the black trait, a. If the ram is homozygous dominant, all offspring will be white (and heterozygous). If the ram is heterozygous, approximately half of it's offspring will be white and half will be black.
Wiki User
∙ 11y ago
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Is it proper to put the dominant allele before a recessive allele when determining the genotype?
Yes
What phenotype is produced by AA genotype?
If A represents a dominant allele, then the AA genotype would produce the dominant phenotype.
If all of the sex cells of an organism have the t allele the genotype of that organism must be?
Question: If all of the sex cells of an organism have the T allele, the genotype of that organism must be? Answer: t
When on e allele of a gene masks the presence of the other allele what form is masked?
The recessive allele.
Using the terms dominant recessive explain the difference between genotype and phenotype?
No, I think you have your terms confused.The terms "dominant" and "recessive" are applied to alleles of a genotype. A genotype is an expression (using upper- and lower-case letters) that shows what alleles an organism has for a particular locus. The two alleles (in most cases) inherited (one from mother and one from father) can either be dominant or recessive. The recessive allele is not fully expressed in the presence of the dominant allele and is only expressed when there are two recessive alleles. The genotype could be called "recessive" I suppose if the genotype is homozygous recessive. But remember that two recessive alleles as a genotype is only one possibility - in which case you can't say the "genotype is recessive".The phenotype is dependent on the genotype. If present, the dominant alleles (in simple Mendelian genetics) will determine the phenotype - what the organism's trait or characteristic is. The phenotype will never be what is coded by the recessive allele unless the genotype is two recessive alleles.
What is it Dominant allele What is a recessive allele?
A genotype in which there are both a dominant and a recessive allele is called heterozygous.
What is true of the allele pair of someone with a genotype TT?
The allele pair of someone with a genotype TT is homozygous dominant.
What is true of the allele pair of someone with the genotype TT?
The allele pair of someone with a genotype TT is homozygous dominant.
What is true of the allele pair of someone with a genotype of tt?
The allele pair of someone with a genotype TT is homozygous dominant.
What phenotype is produced by AB genotype?
The genotype AA represents a homozygous dominant genotype. The capital letter "A" represents the dominant allele, while the lowercase letter "a" would represent the recessive allele. If both dominant alleles are present in a genotype (homozygous dominant) then the phenotype is "A" phenotype. If one dominant allele and one recessive allele are present (heterozygous dominant) then the phenotype is "A". Finally, if both recessive alleles "a" are present (homozygous recessive) then the phenotype is "a". Therefore, the answer to your question is the genotype AA would result in an "A" phenotype because the genotype is homozygous dominant.
Is it proper to put the dominant allele before a recessive allele when determining the genotype?
Yes
What phenotype is produced by AA genotype?
If A represents a dominant allele, then the AA genotype would produce the dominant phenotype.
What is dominant recessive?
There is dominant and there is recessive. There is no dominant recessive. A dominant gene will always be expressed when present, such as in the homozygous dominant genotype (RR), or heterozygous genotype (Rr). A recessive allele is only expressed when the genotype is homozygous recessive (rr).
If all of the sex cells of an organism have the t allele the genotype of that organism must be?
Question: If all of the sex cells of an organism have the T allele, the genotype of that organism must be? Answer: t
What following genotypes will express a dominant trait?
For a dominant trait to be expressed, you either need a RR or an Rr genotype. The other genotype, rr, is recessive only. In genetics, capital letters represent a dominant allele, and lower case letters represent the recessive allele.
What happens when a ressive allele meetsup with a dominate allele?
The genotype is said to be heterozygous and the dominant trait will be expressed in the individual.
In a heterozygote the allele that does not affect the trait?
A heterozygote has the genotype of the dominant allele...therefore the recessive trait is the one that is masked.
