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

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
One way of detecting sex linked inheritance is
  • ✓
    Son resembles mother and daughter resembles father
  • B
    Son resembles father and daughter resembles mother
  • C
    Both son and daughter resemble father
  • D
    Both son and daughter resemble mother
✓

Answer

Correct option: A.
Son resembles mother and daughter resembles father
a
(a) In male, single $X$-linked dominant of recessive gene expresses it phenotypically in contrast to female in which two $x$-linked genes are necessary for the determination of a single phenobypic trait related to sex.

The recessive $x$-linked genes have characteristic criss-cross inheritance.

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