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Zoology
List of top Zoology Questions
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.
GATE XL - 2024
GATE XL
Zoology
Cell cycle
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)
GATE XL - 2024
GATE XL
Zoology
The respiratory system
Consider a species of brightly colored beetle. Which one or more of the following observations suggest(s) that this species is aposematic?
GATE XL - 2024
GATE XL
Zoology
Species diversity
The embryos of which one or more of the following animals show meroblastic cleavage?
GATE XL - 2024
GATE XL
Zoology
Species diversity
Which one or more of the following parasites is/are typically transmitted by mosquitoes as vector?
GATE XL - 2024
GATE XL
Zoology
Protozoan and helminthic parasites
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?
GATE XL - 2024
GATE XL
Zoology
Evolution Of Life Forms – A Theory
Which one of the following statements describes the key function of human sweat glands?
GATE XL - 2024
GATE XL
Zoology
Structure of cell
CREB1 is a eukaryotic transcription factor. In which one of the following compartments of the cell is CREB1 predominantly localized?
GATE XL - 2024
GATE XL
Zoology
Transcription
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?
GATE XL - 2024
GATE XL
Zoology
Mating and territoriality
Which of the following event(s) occur(s) during translation in prokaryotes?
GATE XL - 2024
GATE XL
Zoology
Translation
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
GATE XL - 2024
GATE XL
Zoology
Species diversity
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
GATE XL - 2024
GATE XL
Zoology
Proteins
Factor H, a complement regulatory protein in plasma, binds C3b and
GATE XL - 2024
GATE XL
Zoology
Proteins
In Michaelis-Menten's equation, if \([S] = 15 K_m\), then the ratio \( v_0/V_{max} \) is ____ (Round off to three decimal places).
GATE XL - 2024
GATE XL
Zoology
Proteins
Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?
GATE XL - 2024
GATE XL
Zoology
Translation
In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as
GATE XL - 2024
GATE XL
Zoology
Stem cells
Which one or more of the following statements correctly describe(s) the changes upon the addition of puromycin during eukaryotic translation?
GATE XL - 2024
GATE XL
Zoology
Translation
Factor H, a complement regulatory protein in plasma, binds C3b and
GATE XL - 2024
GATE XL
Zoology
Proteins
In Michaelis-Menten's equation, if \([S] = 15 K_m\), then the ratio \( v_0/V_{max} \) is ____ (Round off to three decimal places).
GATE XL - 2024
GATE XL
Zoology
Proteins
In mammals, hematopoietic stem cells that give rise to different types of blood cells are known as
GATE XL - 2024
GATE XL
Zoology
Stem cells
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 ?
CUET (PG) - 2023
CUET (PG)
Zoology
Population genetics
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?
CUET (PG) - 2023
CUET (PG)
Zoology
Species diversity
The following statements are associated with human female reproductive physiology.
A. The uterine cycle during menstruation includes follicular phase, ovulation and luteal phase.
B. The degeneration of corpus luteum is called luteolysis.
C. An increase in plasma progestrone level synchronises with the luteal phase.
D. After oocyte matuaration, ovulation takes place.
Choose the correct answer from the options given below :
CUET (PG) - 2023
CUET (PG)
Zoology
Human Reproduction
Match List-I with List-II:
List-1 (Scientists)
List-II (Contribution)
A
Maxam-Gilbert
I
DNA polymerase isolation
B
Stanley Cohen
II
DNA sequencing
C
Kornberg
III
Genetic code
D
Har Gobind Khorana
IV
DNA cloning
Choose the correct answer from the options given below
CUET (PG) - 2023
CUET (PG)
Zoology
DNA Replication
Endomorph body type according to Sheldon is____.
CUET (PG) - 2023
CUET (PG)
Zoology
Types of Muscle Tissue and Fibers
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