Download App

Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance4 Marks
Question
Initially proteins (and not DNA) were considered as genetic material.
✓

Answer

  1. Proteins are large, complex molecules and store information required to govern cell metabolism. Hence it was assumed that variations found in species were caused by proteins.
  2. On the other hand, DNA was considered as a small, simple molecule whose composition does not vary much among species.
  3. Variations in the DNA molecules are different than the variation in shape, electrical charge and function shown by proteins.
  4. Hence, initially proteins (and not DNA) were considered as genetic material.

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 "Answer the following in detail :" from Molecular Basis of Inheritance→Molecular Basis of Inheritance — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Scion
→
Give reason : The genetic engineering is alternatively called recombinant DNA technology or gene cloning.
→
Distinguish between the following:
Diffusion and Osmosis.
→
What factors are responsible for losses during storage and transport of crops? Explain, with example, how genetic engineering can reduce these losses?
→
Arrange the following stages of the human evolution in the order of their increasing cranial capacity, (a) Neanderthal man (b) Cro-Magnon man (c) Homo erectus (d) Homo habilis.
→
Can “fishery” be a sustainable job option?
→
Neeta is 45 years old and the doctor advised her not to go for such a late pregnancy. She however wants to be the biological mother of a child without herself getting pregnant. Is this possible and how?
→
Write about laboratory diagnosis and treatment of AIDS.
→
From algae to forest, explain in relation with the succession.
→
Draw labelled diagram of internal structure of human heart.

Label right atrium, mitral valve, left ventricle and pulmonary semilunar valve.

Write a function of Eustachian and tricuspid valve found in human heart.

→