NEET · Biology · STD 12 - 4. principal of inheritance and variation
In a plant, black seed color \((\mathrm{BB} / \mathrm{BB})\) is dominant over white seed color (\(bb\)). In order to find out the genotype of the black seed plant, with which of the following genotype will you cross it?
- A \(\mathrm{bb}\)
- B \(\mathrm{Bb}\)
- C \(\mathrm{BB} / \mathrm{Bb}\)
- D \(\mathrm{BB}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{bb}\)
Step-by-step Solution
Detailed explanation
To determine the genotype of a black seed colour at \(F_2\), the black seed from \(F_2\) is crossed with the white seed colour. This is called a test cross. \(\therefore\) To determine the genotype of \((B B / B b)\) black seed we need to cross them with white seed i.e. \(bb\).
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