34. Allele a (at locus A) exists on 90% of the chromosomes in a population; alle

Question

34. Allele a (at locus A) exists on 90% of the chromosomes in a population; allele x (at locus X) exists on 10% of chromosomes, though it has been established that alleles A and x (both on chromosome 4) are in positive linkage disequilibrium, meaning that………

a. the frequency of a and x carrying chromosomes equals 9%, simply 90% x 10%. b. the frequency of a and x chromosomes are > 9%. c. the frequency of a and x chromosomes are < 9%. d. the frequency of a and x chromosomes is not quantifiable. e. none of the above

Explanation / Answer

b. the frequency of a and x chromosomes are > 9%

because positive linkage disequilibrium means both the alleles have a frequency greater than 9%(positive) which is produced by multiplying 90 and 10% as both of them ensure a positive linkage disequilibrium where the frequncy cannot go below 9% at all and cannot be equal to 9% as well.

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