Barr bodies and drumsticks are of what significance to genetists and biologists

  • A

    They indicate the presence of abnormal sex cells

  • B

    They indicate the presence of more than one $X$ chromosome in the cells

  • C

    They indicate male calls

  • D

    They signify the presence of sex linked traits

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If mother and father both are without pigments $(albinism)$, then

Mendelism was rediscovered by

$I.$ Morgan

$II.$ De Vries

$III.$ Correns

$IV.$ Tschermark

Choose the correct option

Linkage was first observed in

Which of the following is an inherited trait in man

If somatic cells of a human male contain single barrbody, the genetic composition of the person would be