Which of the following karyotypes will exhibit the lowest level of fertility?
Group of answer choices
13, 13, 14, 14
13, der(13;14), 14
der(13;14) der(13;14)
der(13;14) der(13;14)
Explanation: In this genotype chromosome 13 and 14 of the both
parents are affected and both the copies are affected therefore in
this genotype there are more chances that couple will be least
fertile.
Explanation for wrong answers
13, 13, 14, 14
Explanation: Both copies of the both chromosomes are functional;
therefore, couple will be fertile.
13, der(13;14), 14
Explanation: One copy is affected another is normal; therefore,
couple will be less fertile than 13, 13, 14, 14 but more fertile
than der(13;14) der(13;14).
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