Biology set 1 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 605 questions
Q.571 In the process of 'DNA Replication' the fragments on the lagging strand are known as
A Watson fragments
B Okazaki fragments
C Crick fragments
D Mendel fragments
Discuss / Board
Q.572 Which specific 'Enzyme' is used as a 'Marker' for Mitochondria
A Cytochrome oxidase
B Acid phosphatase
C Hexokinase
D Catalase
Discuss / Board
Q.573 The 'Basal Metabolism' in the body is increased by which of the following
A Fasting
B Exercise
C Hypothyroidism
D Sleep
Discuss / Board
Q.574 Identify the 'Tricky' mineral element required for the structure of Chlorophyll
A Iron
B Magnesium
C Phosphorus
D Zinc
Discuss / Board
Q.575 Which among the following is 'NOT' an accessory pigment in photosynthesis
A Chlorophyll b
B Carotenoids
C Chlorophyll a
D Xanthophylls
Discuss / Board
Q.576 Identify the 'Application': Why do fruits ripen faster in a closed bag with an apple
A Carbon dioxide accumulation
B Ethylene gas buildup
C Heat trapping
D Lack of sunlight
Discuss / Board
Q.577 The 'Bilateral' symmetry is absent in which of the following adult organisms
A Earthworm
B Starfish
C Cockroach
D Fish
Discuss / Board
Q.578 Identify the 'Tricky' hormone: Which of the following is 'NOT' a steroid hormone
A Cortisol
B Testosterone
C Insulin
D Estrogen
Discuss / Board
Q.579 In the human eye 'Night Vision' is primarily possible due to
A Cones
B Rods
C Ciliary muscles
D Iris
Discuss / Board
Q.580 Which enzyme is used in the 'PCR' (Polymerase Chain Reaction) to withstand high temperatures
A DNA Ligase
B Taq Polymerase
C RNA Polymerase
D Helicase
Discuss / Board
Q.581 Identify the 'Excretory' product of birds and reptiles
A Ammonia
B Urea
C Uric Acid
D Amino acids
Discuss / Board
Q.582 Which part of the 'Nephron' is the site of maximum reabsorption of electrolytes and water
A Proximal Convoluted Tubule (PCT)
B Loop of Henle
C Distal Convoluted Tubule
D Collecting duct
Discuss / Board
Q.583 The 'Basal Body' of cilia and flagella has a microtubule arrangement of
A 9+2
B 9+0
C 7+2
D 9+3
Discuss / Board
Q.584 Identify the correctly matched 'Gland' and its location
A Thymus - Neck
B Adrenal - Above kidneys
C Pituitary - Abdomen
D Thyroid - Chest
Discuss / Board
Q.585 In the human digestive system 'Enterokinase' is an enzyme that activates
A Pepsinogen
B Trypsinogen
C Chymotrypsinogen
D Procarboxypeptidase
Discuss / Board
Q.586 Which hormone is secreted in response to 'Hypocalcemia' to increase blood calcium
A Calcitonin
B Parathyroid Hormone (PTH)
C Thyroxine
D Aldosterone
Discuss / Board
Q.587 The 'Ozone' layer thickness is measured in which units
A Decibels
B Dobson Units (DU)
C Pascal
D Millimeters
Discuss / Board
Q.588 Identify the 'Tricky' part: Which of the following does 'NOT' have a nucleus
A Mature mammalian RBC
B Sieve tube cells in plants
C WBC
D Both A and B
Discuss / Board
Q.589 In the process of 'Translation' the initiator amino acid in eukaryotes is
A Valine
B Methionine
C Leucine
D Glycine
Discuss / Board
Q.590 The 'Islets of Langerhans' contain which cells for secreting Somatostatin
A Alpha cells
B Beta cells
C Delta cells
D PP cells
Discuss / Board
Q.591 Which of the following is an example of 'Ex-situ' conservation
A Botanical Garden
B National Park
C Sanctuary
D Biosphere Reserve
Discuss / Board
Q.592 Identify the hormone that inhibits 'Gastric' secretion and motility
A Gastrin
B Secretin
C Enterogastrone
D Both B and C
Discuss / Board
Q.593 In the human circulatory system the 'Purkinje Fibers' are located in the
A Atria
B Ventricle walls
C SA node
D Aorta
Discuss / Board
Q.594 Identify the 'Tricky' part: Which of the following is an example of an 'Incomplete' parasite
A Cuscuta
B Viscum (Mistletoe)
C Rafflesia
D None of these
Discuss / Board
Q.595 The 'Basal Body' of cilia is also known as a
A Centromere
B Kinetosome
C Kinetochore
D Chromocenter
Discuss / Board
Q.596 Which among the following is a 'Secondary' consumer in a pond ecosystem
A Phytoplankton
B Zooplankton
C Small fish
D Large fish
Discuss / Board
Q.597 In the process of 'DNA Replication' the strands are separated by the enzyme
A DNA Ligase
B Helicase
C DNA Polymerase
D Topoisomerase
Discuss / Board
Q.598 Which specific 'Bacteria' is responsible for the 'Ammonification' of soil
A Bacillus vulgaris
B Nitrosomonas
C Nitrobacter
D Pseudomonas
Discuss / Board
Q.599 Identify the correctly matched 'Disease' and its causative agent
A Common cold - Bacteria
B Tuberculosis - Virus
C Amoebiasis - Protozoa
D Ringworm - Virus
Discuss / Board
Q.600 The 'Basal Body' of human sperm is located in the
A Head
B Middle piece
C Neck
D Tail
Discuss / Board

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