Download App

Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
CsOH gradient
  • A
    14NH4​Cl
  • B
    15NH4​Cl
  • C
    35SO2​
  • D
    CsCl gradient
✓

Answer

  1. CsCl gradient

Explanation:

In the following procedure, centrifugation is done on a CsCl gradient, the DNA separate out at a point when density equals that of the salt solution.

15NH4Cl was used as a heavy isotope of ammonium chloride while, 14NH4Cl was used as the light isotope of ammonium chloride & the type of centrifugation used was density gradient centrifugation in a CsCl medium.

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 (0.5 Marks)" 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

Which of the following is not a copper releasing IUD?
→
It is oral contraceptive
→
What is the theory of the great explosion called Big Bang related to:
→
The surface temperature of the sun is ............ degree C.
→
$A$- Grasshopper is included in primary consumer.

$R$- Fishes and birds are included in top carnivore.

→
Test tube baby means a baby born when:
→
Ingestion of marijuana leads to illusions and alters the thoughts, feelings and perceptions of a person. Marijuana is a
→
Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

$(a)$ It results in the formation of haploid gametes

$(b)$ Differentiation of gamete occurs after the completion of meiosis

$(c)$ Meiosis occurs continuously in a mitotically dividing stem cell population

$(d)$ It is controlled by the Luteinising hormone (LH) and FollicleStimulating Hormone (FSH) secreted by the anterior pituitary

$(e)$ It is initiated at puberty

Choose the most appropriate answer from the options given below:

→
In the process of transcription in Eukaryotes, the $RNA$ polymerase $I$ transcribes
→
Basic principles of embryonic development were pronounced by:
→