Bio molecules and cell cycle: Top 40 MCQ questions for TGT/ PGT Exam

Top 40 questions of biology for TGT PGT and NEET from the topic Bio molecules and cell cycle. जैव अणु और कोशिका चक्र (Bio Molecules and Cell Cycle) बायोलॉजी का एक महत्वपूर्ण टॉपिक है, यहां से हर साल TGT PGT Exams में कई क्वेश्चन पूछे जाते है। यदि आप TGT PGT KVS की तैयारी कर रहे है तो आपको नीचे दिए गए इन MCQ Questions पर नजर रखनी चाहिए।

Topic: Bio molecules and cell cycle

  1. The term ‘Taxon’ for the first time was used by:

(C) Mayr
(D) De Condoll
Answer:- ICBN

  1. When species name exactly repeats generic name, it is known as:

(A) Basionym
(B) Tautonym
(C) Homonym
(D) Synonym

  1. Peripatus belongs to class:

(A) Fructose
(B) Glucose
(C) Maltose
(D) Sucrose

4. The first phylum of animal kingdom to exhibit bilateral symmetry is:

(A) Arthropoda
(B) Annelida
(C) Mollusca
(D) Platyhelminthes

  1. Linnaeus published his concept of binomical nomenclature first in:

(A) Systema Naturae
(B) Species Plantarum
(C) Genera Plaantarum
(D) Philosophiaa Botanica
Answer:-Genera Plaantarum

  1. Pipa is a-

(A) Salamander
(B) Toad
(C) Frog
(D) Snake
Answer:-) Toad

7. Hemolytic venom, which breaks down red blood corpuscles, is produced by which of the following snakes?

(A) Cobra
(B) Krait
(C) King Cobra
(D) Viper

8. Pigeon milk is secreted by:

(A) Crop gland of both male and female
(B) Crop gland of only male
(C) Crop gland of only female
(D) Uropygeal gland
Answer:-Crop gland of only female

  1. In frog Y – shaped bone is-

(A) Squamosal
(B) Pteriogoid
(C) Palatine
(D) Quardreto-Jugal

  1. Kidneys are opisthonephric in:

(A) Scoliodon
(B) Uromastix
(C) Columba
(D) Rana
Answer:- Scoliodon

  1. Catadromous migration refers to
    movement of fishes from:

(A) Fresh water to fresh water
(B) Fresh water to salt water
(C) Salt water to salt water
(D) Salt water fresh water
Answer:-Fresh water to fresh water

  1. ‘Sphenodon’ a living fossil belongs to:

(A) Rhyncocephalia
(B) Crocodila
(C) Anapsida
(D) Urodela

  1. Furecula bone is present in:

(A) Fishes
(B) Amphibia
(C) Aves
(D) Reptiles

  1. Jacobson’s organ is found in:

(A) Birds
(B) Lizards
(C) Fishes
(D) Mammals

यह भी पढ़िए:

  1. Which one of the following lays eggs yet the female secretes milk:

(A) Ostrich
(B) Kangaroo
(C) Platypus
(D) Bat
Answer:- Kangaroo

  1. Paedogenesis is observed in:

(A) Aaxolotl larva
(B) Megalopa larva
(C) Caterpillar larva
(D) Tornaria larva
Answer:-Caterpillar larva

  1. Urinary bladder is not found in which of the following?

(A) Aamphibians
(B) Reptiles
(C) Birds
(D) Mammals

  1. The smallest feathers in birds are known as:

(A) Filoplume
(B) Down
(C) Contour
(D) Pennae

  1. The tusk of the elephant is the:

(A) Modified upper canine
(B) Modified upper second incisor
(C) Modified lower second incisor
(D) A specialized growth from the maxilla

  1. Preen gland is found in:

(A) Fishes
(B) Reptiles
(C) Birds
(D) Mammals

21. Foramen triosseum is found in:

(A) Pectoral girdle of bird
(B) Pelvic girdle of bird
(C) Pectoral girdle of mammal
(D) Pelvic girdle of mammal
Answer:-Pelvic girdle of mammal

22. In ‘S’ phase of the cell cycle

(a) Chromosome number is increased.
(b) Amount of DNA is reduced to-half in each
(c) Amount of DNA doubles in each cell.
(d) Amount of DNA remains same in each cell
Answer:- Amount of DNA remains same in each cell

23. The enzyme recombinase is required at which state of meiosis.

(a) Diplotene
(b) Diakinesis
(c) Pachytene
(d) Zygotene

24. Meiosis takes place in :

(a) Megaspore
(b) Meiocyte
(c) Conidia
(d) Gemmule

25. The complex formed by a pair of synpased homologous chromosomes is called:

(a) Axoneme
(b) Equatorial plate
(c) Kinetochore
(d) Bivalent
Answer:- Bivalent

26. Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.

(a) Metaphase I
(b) Metaphase II
(c) Anaphase I
(d) Anaphase II
Answer:- Anaphase I

27. Colchicine arrests spindle at

(a) Anaphase
(b) Prophase
(c) Telophase
(d) Metaphase
Answer:- Metaphase

28.Which of the protein is found in spindle fibre?

(a) Leptotene
(b) Zygotene
(c) Pachytene
(d) Diplotene
Answer:- Leptotene

29. Spindle fibre is made up of

(a) Humulin
(b) Intermediate filament
(c) Flagellin
(d) Tubulin.
Answer:- Tubulin.

30. Longest phase of meiosis, is

(a) Prophase-I
(b) Prophase-II
(c) Anaphase-I
(d) Metaphase-II

31. The stage between two meiotic division is called

(a) Interphase
(b) Cytokinesis
(c) Interkinesis
(d) karyokinesis

32. Cell division cannot be stopped in which phase of the cell cycle?

(a) G1 -phase
(b) G2-phase
(c) S-phase
(d) Prophase

31. Cells in G0-phase of cell cycle

(a) Exit cell cycle
(b) Enter cell cycle
(c) Suspend cell cycle
(d) Terminate cell cycle
Answer:-Suspend cell cycle

32. During mitosis, ER and nucleolus begin to disappear at

(a) Late prophase
(b) Early metaphase
(c) Late metaphase
(d) Early prophase
Answer:-Late prophase

33. Small disc-shaped structures at the surface of the centromeres that appear during metaphase are

(a) Kinetochores
(b) Metaphase plate
(c) Spindle fibres
(d) Chromatid

34.Chromosomes are arranged along the equator during:

(a) Prophase
(b) Metaphase
(c) Anaphase
(d) Telophase

35. Crossing over occurs at

(a) Single strand stage
(b) Two strand stage
(c) Four strand stage
(d) Eight strand stage
Answer:-Four strand stage

36. Crossing over occurs during

(a) Leptotene
(b) Diplotene
(c) Pachytene
(d) Zygotene
Answer:- Pachytene

37. In cell cycle, during which phase chromosomes are arranged at equatorial plate?

(a) Metaphase
(b) Anaphase
(c) Telophase
(d) Prophase

जैव अणु और कोशिका चक्र (Bio Molecules and Cell Cycle) के इन MCQ Questions को अपने दोस्तों के साथ जरूर शेयर करे।

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