Which of the following group of codons is called stop codons ?
$UUU,UUC,UUA$
$UAA, UAG, UGA$
$UUG, CUU, C?C$
$AGU, AGC, AGA$
Number of chromosomes present in gorilla is
$RNA$ is a genetic material in
$DNA$ multiplication is called
Select the two correct statements out of the four $(i -iv)$ statements given below about lac operon.
$(i)$ Glucose or galactose may bind with the repressor and inactivate it.
$(ii)$ In the absence of lactose the repressor binds with the operator region.
$(iii)$ The zgene codes for permease.
$(iv)$ This was elucidated by Francois Jacob and Jacques Monod.
The correct statements are
The twenty third pair of chromosomes in man is known as