Download App

Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance2 Marks
Question
During DNA replication, why is it that the entire molecule does not open in one go? Explain replication fork. What are the two functions that the monomers (d NTPs) play?
✓

Answer

For long DNA molecules, since the two strands of DNA cannot be separated in its entire length (due to very high energy requirement), the replication occur within a small opening of the DNA helix, referred to as replication fork.

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 "1.5 Marks Questions" from Molecular Basis of Inheritance→Molecular Basis of Inheritance — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Draw a vertical section of maize grain and label its endosperm, plumule, coleoptile, scutellum, radicle and coleorhiza.
→
Why is secondary succession faster than the primary succession?
→
What is the difference between endemic and exotic species?
→
What is health? What is important to maintain good health?
→
Why both the strands are not copied during transcription.
→
  1. Name any two copper releasing IUDs.
  2. Explain how do they act as effective contraceptives in human females.

OR

Copper ions-releasing IUDs are more efficient than non-medicated methods. Why?

→
Write the name of the bioactive molecules produced by the microbes listed below, and their role in the field of medical sciences.
a. Monascus purpureus
b. Trichoderma polysporum
→
Explain the embryological basis of development.
→
What is parturition ? Which hormones are involved in induction of parturition ?
→
Differentiate between diagnostics and therapeutics. Give one example and for each category.
→