MCQ
Barr body in mammals represents:
- AAll the heterochromatin in female cells.
- BY-chromosomes in somatic cells of male.
- CAll heterochromatin in male and female cells.
- DOne of the two X-chromosomes in somatic cells of females.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$R$ : Pyramids actually does not explain the role of organisms working at more than one trophic levels.
$I.$ Flippers of whale and wings of bat exhibit analogy.
$II.$ Wings of butterfly and wings of bird exhibit homology.
$III.$ Organs with dissimilar structure are called analogous organs.
$IV.$ Organs with similar structure and origin are called homologous organs.