which statement best describes the relationship between an allele and a gene?

 

which statement best describes the relationship between an allele and a gene www.clickanswer.us

Which statement best describes the relationship between an allele and a gene?

A. A gene is a variant of an allele.

B. A gene is always recessive to an allele.

C. An allele is a variant of a gene.

D. A gene is always dominant to an allele.


Answer:

Option B

Explanation:

An allele is considered as a variant form of a gene. A single gene possess various forms and these all forms are located at the same gene locus. The different phenotype of a gene is due to varied combination of alleles.  

For example – let “T” represents the allele for tall gene and “t” represents the allele for short gene and “T” is dominant over “t”. Genotype “TT” or “Tt”  represents a tall species and genotype “tt” represents a short species.

Hence, option B is correct


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