Such a person is said to be heterozygous for eye color. When a heterozygote exhibits evolutionary fitness greater than that of either homozygote, this phenomenon is known as a heterozygote advantage, or simply overdominance. Many experts think that evolutionary disadvantages can be preserved in the ...
If a disease has two alleles, B and b, what are the mating types that could produce a heterozygous child? Explain how many phenotypes are there for a trait that has two alleles that are governed by co-dominance. What do you call the organism having two different alleles of a gene? A....
If an individual inherits two of the same allele, they are homozygous for that gene. If they inherit two different alleles of the gene–one from their father and the other from their mother–they are heterozygous for that gene. If they inherit only one allele of a gene, by contrast, they...
Each genetic trait can be located at a particular site or locus on a chromosome, and in a pair of homologous chromosomes, there will be two copies of the alleles which code for a particular trait. In homozygous animals, these alleles are identical. Heterozygous animals have two different allel...
If a parent has the genotype aaBb, what combinations of alleles can the parent give to its gametes based on the principle of independent assortment? In a dihybrid cross using Mendelian inheritance, if both parents are heterozygous for both traits, what will be t...
Byanon112766— On Sep 21, 2010 i have a problem distinguishing who's the father of my upcoming baby girl. I'm eight months pregnant. way back then, i broke up with my boyfriend and had a new one in the same month. we had sex, but in the same month as well, my former boyfriend...
Remember, a chromosome carries genes in linear order; a gene is a segment of code that dictates what trait will develop; and alleles are forms of a gene. For an organism to beheterozygous, it has to have a different allele for the same gene at the same point in the chromosome. ...
An allele isa variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. ... Genotypes are described as homozygous if there are two identical alleles at a particular locus and as heterozygous if the two...
A recessive trait is one that is only expressed when an organism has two recessive alleles for that trait. They are less common than dominant traits in most populations because dominant traits will appear in those with both homozygous dominant and heterozygous alleles. What are examples of recessiv...
A classic example of dominance isthe inheritance of seed shape (pea shape) in peas. Peas may be round (associated with allele R) or wrinkled (associated with allele r). In this case, three combinations of alleles (genotypes) are possible: RR and rr are homozygous and Rr is heterozygous....