2023TrialMultiple choice
Q18
1 mark
Question
In the technique of genetic profiling, each DNA profile represents several loci (gene positions) on a pair of homologous chromosomes. DNA profiles for three animals of the same species are shown below.
If Animal 1 mated with Animal 3 and produced a single offspring, the offspring
(A) Must be homozygous at locus A
(B) May be homozygous at locus D
(C) Could be either homozygous or heterozygous at locus C
(D) Must be heterozygous at locus E

Syllabus alignment
Module 5 · Heredity
- Inheritance Patterns in a PopulationInvestigate DNA sequencing and profiling technologies used to determine inheritance patterns.