Peptidoglycans  recognize by

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#Question id: 40429

#Applied Microbiology

Read the following statements regarding chromatography techniques:

Statement I: Ion exchange chromatography separates molecules based on differences in their net surface charge.

Statement II: Gel filtration chromatography (Size Exclusion) separates molecules based on their specific binding to a ligand.

Choose the correct answer from the options given below:

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#Question id: 40430

#Applied Microbiology

Assertion (A): Total cellular RNA passed through an oligo(dT) column results in the specific elution of mRNA.

Reason (R): Prokaryotic rRNA and tRNA constitute the majority of total RNA and they lack a 3' Poly-A tail.

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#Question id: 40431

#Applied Microbiology

Match the Chromatography Type (List I) with its Principle of Separation (List II).

List I (Chromatography)	List II (Basis of Separation)
(a) Ion Exchange	(i) Hydrophobicity
(b) Gel Filtration	(ii) Specific Ligand Interaction
(c) Affinity	(iii) Net Charge
(d) Reverse Phase	(iv) Molecular Size / Stokes Radius

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#Question id: 40432

#Botany

Match the enzymes in LIST-I with their specific metallic activators/co-factors in LIST-II.

LIST-I (Enzyme)	LIST-II (Activator/Co-factor)
A. Nitrogenase	I. Magnesium (Mg²⁺)
B. RuBisCO	II. Molybdenum (Mo)
C. Alcohol Dehydrogenase	III. Iron (Fe)
D. Ferredoxin	IV. Zinc (Zn²⁺)

Choose the correct answer from the options given below:

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#Question id: 40433

#Botany

Which of the following statements are correct regarding the C4 pathway of photosynthesis?

A. The primary CO₂ acceptor is a 3-carbon molecule, Phosphoenolpyruvate (PEP). 

B. The first stable product is a 4-carbon compound, Oxaloacetic Acid (OAA). 

C. The enzyme RuBisCO is absent in the mesophyll cells of C4 plants.

D. The decarboxylation of malic acid to release CO₂ occurs in the mesophyll cells.

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#Question id: 40434

#Botany

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The net gain of ATP in aerobic respiration is significantly higher than in fermentation.

Reason (R): In fermentation, glucose is only partially oxidized, and the NADH produced in glycolysis is not utilized to generate ATP via the Electron Transport Chain.

In the light of the above statements, choose the correct answer from the options given below: