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STD 12 - 4. principal of inheritance and variation — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
A normal­visioned man whose father was colour­ blind, marries a woman whose father was also colour­blind. They have their first child as a daughter. What are the chances that this child would be colour­ blind ?
  • A
    $1$
  • ✓
    Zero percent
  • C
    $0.25$
  • D
    $0.5$
✓

Answer

Correct option: B.
Zero percent
b
(b): In the given condition the chances of childto be colourblindis zero percent. It can be understoodby the given cross :

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