Biology · PYQ NEET UG 2026

Which of the following statements about lac-operon is correct?

1. A
   Gene $i$ is constitutively expressed
2. B
   Lactose activates repressor to bind to the operator
3. C
   Genes $i$, $z$, $y$ and $a$ share single common promoter
4. D
   Galactose can act as an inducer of lac operon