| ⇦ | 
| ⇨ |
Read the following four statements (A-D).
(A) In transcription, adenosine pairs with uracil.
(B) Regulation of lac operon by repressor is referred to as positive regulations.
(C) The human genome has approximately 50,000 genes.
(D) Haemophilia is a sex-linked recessive disease.
How many of the above statements are correct
Options
(a) Two
(b) Three
(c) Four
(d) One
Correct Answer:
Two
Explanation:
Statement A & D is correct. Regulation of lac operon by repressor is referred as negative regulation. In negative regulation, a repressor molecule binds to the operator of an operon and terminates transcription. In positive regulation, an activator interacts with the RNA polymerase in the promoter region to initiate transcription. Human genome contains some 20,000 – 25,000 genes billion bases.
Related Questions: - Pollination between different flowers of the same plant is called
- T.O. Diener discovered
- Protein present in silk fibre is
- What type of spores are in bryophytes
- During the stage in the complete oxidation of glucose are the greatest number
Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Pollination between different flowers of the same plant is called
- T.O. Diener discovered
- Protein present in silk fibre is
- What type of spores are in bryophytes
- During the stage in the complete oxidation of glucose are the greatest number
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply