Identify the figure which depicts a first order reaction.

If V_input is applied to the circuit shown, the output would be

13.

A physiological disorder X always leads to the disorder Y. However, disorder Y may occur by itself. A population shows 4% incidence of disorder Y. Which of the following inferences is valid?

• 4% of the population suffers from both X and Y

• Less than 4% of the population suffers from X

• At least 4% of the population suffers from X

• There is no incidence of X in the given population

Water is dripping out of a tiny hole at the bottom of three flasks whose base diameter is the same, and are initially filled to the same height, as shown

which is the correct comparison of the rate of fall of the volume of the water in the three flasks?

• A faster, B slowest

• B faster, slowest

• B faster, C slowest

• C faster, B slowest

The graph represents the depth profile of temperature in the open ocean; in which region this is likely to be prevalent?

• Topical region

• Equatorial region

• Polar region

• Sub-tropical region

The area of allowed region in the Ramchandran map will be least for

• Gly

• L-Ala

• L-Prol

• A-methyl L- valine

Small RNAs with internally complementary sequences that form hairpin‐like structures, synthesized as precursor RNAs and cleaved by endonucleases to form short duplexes are called:

• snRNA

• mRNA

• tRNA

• miRNA

A much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in forest ecosystem because

• Aquatic autotrophs are small

• Aquatic herbivores are more efficient feeders

• Terrestrial autotrophs are less efficient feeders

• Terrestrial autotrophs have more indigestible tissues

Polar bears maintain their body temperature because they have more of

• Transducin protein

• Uncoupling protein

• Myoglobin protein

• F₀F₁ ATPase

Transport of water across aquaporins is regulated by the presence of which of the following sequence of three highly conserved amino acids?

• Ala‐Asn‐Pro

• Pro‐Asn‐Ala

• Asn‐Pro‐Ala

• Pro‐Ala‐Asn