Operator genes are controls to which gene mechanism?
Structural gene
Activator gene
Regulator gene
Modulac gene
DNA is specific because it has
number of nucleotides
specific nature of phosphate and sugar
arrangement of protein in DNA
specific nature of purine and pyrimidines
When embryonic development is completed in mother but the embryo not accept nutritent from mother, which is known as
ovoviparous
viviparous
oviparous
All of these
A.
ovoviparous
Ovoviviparous animals produce young ones by means of eggs which are hatched within the body of the parent without the formation of placenta.
Viviparous animals produce the young ones inside the body of the parent alongwith the formation of placenta.
Oviparous animals produce young ones by means of eggs which are hatched after they have been laid by the parent.
Sertoli cells are associated with
kidney of rabbit
ovary of frog
testis of rabbit
ovary of rabbit