Question

For a gene present on human chromosome 4, the maximum number of alleles that may be detected by sequencing the genome of 5 males and 10 females is _______.

Hint:

Autosomal genes → 2 alleles per individual; X-linked genes → 1 allele in males, 2 in females.

Answer 1

Correct Answer: 30

Step 1: Concept.
Chromosome 4 is an autosome, hence both males and females have 2 copies of it. Step 2: Determine total alleles.
Total individuals = 5 males + 10 females = 15 individuals.
Each has 2 alleles for the autosomal gene: \[ \text{Total alleles} = 15 \times 2 = 30 \] Step 3: Conclusion.
Maximum number of alleles = 30.