everyday science MCQ #315

What is the chance of a diabetic baby being born to parents who are both heterozygous normal?

everyday science MCQ #315

  1. Question 1

    Q1. What is the chance of a diabetic baby being born to parents who are both heterozygous normal?

    • A) 1 by 2
    • B) 3 by 4
    • C) 1 by 4
    • D) Zero

    Answer: 1 by 4

    Explanation: Using a Punnett square with two heterozygous normal parents (Dd × Dd), the probability of a homozygous recessive (dd) diabetic offspring is 1 in 4 (25%).