List of top Zoology Questions

In Michaelis-Menten's equation, if $[S] = 15 K_m$, then the ratio $v_0/V_{max}$ is ____ (Round off to three decimal places).

At t = 0, the bacterial cell number is 10,000 cells/mL. At t = 480 minutes, the cell number increased to 320,000 cells/mL. The mean generation time during this exponential growth period, rounded off to the nearest integer is___ minutes.

Consider a healthy person with the following lung volumes: Residual volume = 900 mL Expiratory reserve volume = 800 mL Tidal volume = 200 mL If the Total lung capacity is 5500 mL, then the Inspiratory reserve volume of the person is____ mL. (Answer in integer)

Which one or more of the following parasites is/are typically transmitted by mosquitoes as vector?

Consider a species of brightly colored beetle. Which one or more of the following observations suggest(s) that this species is aposematic?

The embryos of which one or more of the following animals show meroblastic cleavage?

Which one of the following statements describes the key function of human sweat glands?

Consider a large population of a finch species, where both small and big beak sizes are advantageous, and an intermediate beak size is maladaptive. Over a period of 10 years, which one of the following evolutionary processes is most likely to operate on the beak size of this finch population?

In certain species of salamanders, male-female pairs have multiple mating partners in a breeding season. Which one of the following terminologies accurately describes this mating system?

CREB1 is a eukaryotic transcription factor. In which one of the following compartments of the cell is CREB1 predominantly localized?

Which of the following event(s) occur(s) during translation in prokaryotes?

Match the plant products in Group 1 with the plant species in Group 2 that produce them and the respective plant parts in Group 3 where they accumulate the most.

Group 1		Group 2
(P)	Protocooperation	(i)	One species is harmed but the other is neither harmed nor benefitted
(Q)	Commensalism	(ii)	A type of mutualism where one species is  benefitted more than the other
(R)	Amensalism	(iii)	Both the species are benefitted but the interaction between them is not obligatory
(S)	Helotism	(iv)	One species is benefitted without harming the other

Match the inhibitors in Group 1 with their respective targets in Group 2.

Group 1	Group 2
(P) VirG	(i) Kinase
(Q) VirA	(ii) Helicase
(R) VirE	(iii) Transcriptional activator
(S) VirC	(iv) Single strand binding protein

Factor H, a complement regulatory protein in plasma, binds C3b and

In Michaelis-Menten's equation, if $[S] = 15 K_m$, then the ratio $v_0/V_{max}$ is ____ (Round off to three decimal places).

Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?

In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as

Factor H, a complement regulatory protein in plasma, binds C3b and

Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?

In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as

A population has 600 individuals, 150 of genotype AA, 300 of genotype Aa and 150 of genotype aa. What is the frequency of allele A ?

In the course of evolution, first horses appeared in which period ?

Which of the following IUCN category is assigned when a species faces an extremely high or very high risk of extinction in the wild in immediate or near future?