Download App

STD 12 - 5. molecular basis of inheritance — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 5. molecular basis of inheritance1 Mark
MCQ
Which is not true for Operon model
  • A
    Regulator gene
  • B
    Promotor gene
  • ✓
    Repressor gene
  • D
    Operator gene
✓

Answer

Correct option: C.
Repressor gene
c
(c)Operon model consists of structural genes, regulator gene, promoter gene and operator gene.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 5. molecular basis of inheritance→STD 12 - 5. molecular basis of inheritance — all question types→Biology STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

In biological systems, the $RNA$ molecules direct the synthesis of specific proteins which are characteristics of each kinds of organism. This process is known as
→
A mutually beneficial association necessary for survival of both partners are:
→
Corpus luteum.
→
Among the ecosystem mentioned below, where can one find maximum biodiversity?
→
The fast dwindling $....A... $$\;\%$ forest is estimated to produce $....B... $$\;\%$ percent of the total oxygen in earth’s atmosphere.
→
Maximum application of animal cell culture technology today is in the production of:
→
Pollen grain refers to:
→
Which of the following is correct for Watson and Crick's model of $DNA$. It is duplex with
→
Periodic departure and return of an individual in a population is known as
→

Choose correct pair :

Column $- I$Column $- II$
$(A)$ Myometrium$(1)$ Cushion of fatty tissue
$(B)$ Mons pubis$(2)$ Tiny finger like structure
$(C)$ Acrosome$(3)$ External layer of uterus
$(D)$ Prostate gland$(4)$ Middle thick layer of uterus
 $(5)$ Help in fertilization of ovum
→