MCQ
Ancestral amphibians were tetrapods that evolved during
- AJurassic period
- BCretaceous period
- ✓Devonian period
- DCarboniferous period
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$I.$Ectoderm - Epidermis
$II$.Endoderm - Dermis
$III.$Mesoderm - Muscles
$IV.$Mesoderm - Notochord
$V.$Endoderm - Enamel of teeth
Reason : A gene incorporated in the bacterial chromosomal genome-gets automatically transferred to the crop with which the bacterium is associated.
$(i)$ presence of sickle - shaped $RBC$
$(ii)$ Blood not clot, non stop bleeding
$(iii)$ The heterozygous female transmit the disease to sons.
$(iv)$ Both heterozygous parents transmit the disease to offspring