Operator genes are controls to which gene mechanism?
Structural gene
Activator gene
Regulator gene
Modulac gene
A.
Structural gene
Operator genes in lac operon controls the activity of structural gene. Operator is a segment of DNA to which a repressor binds. It is a segment present between the promoter and the genes of the operon.
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
Sertoli cells are associated with
kidney of rabbit
ovary of frog
testis of rabbit
ovary of rabbit