OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a pair of genes
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one of the genes in a pair
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a dominant trait
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a recessive trait
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Detailed explanation-1: -An allele is one of two or more versions of DNA sequence (a single base or a segment of bases) at a given genomic location. An individual inherits two alleles, one from each parent, for any given genomic location where such variation exists. If the two alleles are the same, the individual is homozygous for that allele.
Detailed explanation-2: -All alleles give the information of one gene. So, alleles are different forms of the same gene. Thus, a pair of genes is called pair of alleles and it is referred as genotype. Humans are diploid organisms because they have two alleles at each genetic locus, one allele from the father and one allele from the mother.
Detailed explanation-3: -Alleles may occur in pairs, or there may be multiple alleles affecting the expression (phenotype) of a particular trait. The combination of alleles that an organism carries constitutes its genotype.
Detailed explanation-4: -One of two or more versions of a genetic sequence at a particular region on a chromosome. An individual inherits two alleles for each gene, one from each parent.