Multiple choice

In a couple, both the parents are carriers for a genetically inherited fatal recessive disease decide to become parents, what will be the odds that their children will also be carriers?

  1. 1 out of 4

  2. 2 out of 4

  3. 3 out of 4

  4. 4 out of 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There will be a 50% chance (2 out of 4) of having a carrier (Aa) child. Similarly, each time there will be a 25% chance of having an offspring who will inherit the disease (aa) and die.

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