GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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describes the genotype of a trait for which the two alleles an individual carries differ from each other
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the breeding of organisms that differ in one or more traits
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a trait controlled by a gene on a sex chromosome
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None of the above
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Detailed explanation-1: -A dihybrid cross is a breeding experiment between two organisms which are identical hybrids for two traits. In other words, a dihybrid cross is a cross between two organisms, with both being heterozygous for two different traits. The individuals in this type of trait are homozygous for a specific trait.
Detailed explanation-2: -A genetic cross between parents that differ in two characteristics is a dihybrid cross.
Detailed explanation-3: -monohybrid cross: mating of two organisms that differ in only one character-looking at one trait at a time.
Detailed explanation-4: -A dihybrid cross is an experiment in genetics in which the phenotypes of two genes are followed through the mating of individuals carrying multiple alleles at those gene loci. Most sexually reproducing organisms carry two copies of each gene, allowing them to carry two different alleles.
Detailed explanation-5: -test cross Generally a cross involving a homozygous recessive individual. When a single trait is being studies, a test cross is a cross between an individual with the dominant phenotype but of unknown genotype (homozygous or heterozygous) with a homozygous recessive individual.