MHT CET · BIOLOGY · STD 12 - 4. Molecular Basis of Inheritance

First evidence for triplet genetic code was given by _________ .

A Severo Ochoa
B Nirenberg and Matthaei
C Crick
D Dr. H.G. Khorana

Verified Solution

Answer & Solution

Correct Answer

(C) Crick

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Select the correct statements from the following regarding gaseous exchange in plants.
Choose the correct option given below.
A. A terrestrial plant has many air spaces between the cells of leaf and root.
B. Woody trees have stomata on bark.
C. In aerated soil, oxygen dissolved in water enters root tissue by diffusion.
D. Vascular bundles provide thin and large surface area for exchange of gases.
E. Carbon dioxide and water vapour diffuse into lenticels.

MHT CET 2023 Easy

Given below are some reactions and the
enzymes involved.
Identify the CORRECT pairs.

	Column I		Column II
a.	Fructose \(1,6\) diphosphate \(\rightarrow 3\) PGAL+DHAP	i.	Enolase
b.	\(\begin{array}{l}\text { Citrate } \rightarrow \text { CIS } \\ \text { aconitate }\end{array}\)	ii.	Thiokinase
c.	Succinyl Co. A\(\rightarrow\) succinate	iii.	Aconitase
d.	2 PGA \(\rightarrow\) PEPA	iv.	Aldolase

MHT CET 2015 Medium

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