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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
How many types of zygotic combinations are possible between a cross $Aa \;BB \;Cc\; Dd × AA \;bb \;Cc\; DD$?
  • A
    $32$
  • B
    $128$
  • C
    $64$
  • ✓
    $16$
✓

Answer

Correct option: D.
$16$
d
Aa $B B C c D d \times A A$ $bb$ $C c=D D$

Number of gametes

$2^{n} \Rightarrow 2^{3}$

$\Rightarrow 8 \times 2=16$

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