Which of the Following Genotypes Would Most Likely Lead to a Low

question 30

Multiple Choice

Which of the following genotypes would most likely lead to a low birth weight and a small placenta?

• A)Igf2+/Igf2+ where neither maternal nor paternal allele is mutated.
• B)Igf2+/Igf2- but only in female progeny as the Igf2 gene is on the X- chromosome.
• C)Igf2+/Igf2- where the mutated Igf2- allele comes from the maternal source.
• D)Igf2+/Igf2- and it doesn't matter which parental source the mutated Igf2- comes from.
• E)Igf2+/Igf2- where the mutated Igf2- allele comes from the paternal source.