14620 + Mcqs in Biology McqOptions

1.	Which of the source of energy is non-renewable [RPMT 1990]
A.	Wild life
B.	Forest wealth
C.	Coal reserves
D.	Hydel-power
Answer» D. Hydel-power

Discussion

2.	Assertion : None autotrophic bacteria carry out chemosynthesis. Reason : Chemosynthetic bacteria trap the small amount of energy released from inorganic compound?s oxidation to use in the reactions that synthesize carbohydrates.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» E. If the assertion is false but reason is true

Discussion

3.	Which of the following pesticides are non-biodegradable
A.	Triazines
B.	Organophosphates
C.	Organochlorines
D.	None
Answer» D. None

Discussion

4.	Mode of action of following pesticides is similar
A.	Organochlorines and organophosphates
B.	Organochlorines and carbamates
C.	Organophosphates and carbamates
D.	DDT and parathion
Answer» D. DDT and parathion

Discussion

5.	Read the assertion and reason carefully: Assertion : A simple leaf has undivided lamina. Reason : Leaves showing pinnate and palmate venation have various type of incisions.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

6.	The Zoological name of 'Lion-tailed macaque' is [BHU 1989]
A.	Macaca rhesus
B.	Macaca silenus
C.	Macaca mulatta
D.	None of these
Answer» C. Macaca mulatta

Discussion

7.	Organophosphate insecticides inhibit [MP PMT 1998]
A.	Cholinesterases
B.	Carbohydrases
C.	Urease
D.	Enterokinase
Answer» B. Carbohydrases

Discussion

8.	Rainfall occurs in chapparal during
A.	The whole year
B.	Summer
C.	Winter
D.	Spring-autumn
Answer» D. Spring-autumn

Discussion

9.	Which one of the following pairs is correctly matched [MP PMT 1993]
A.	Anaphase I Homologous chromosomes are separated
B.	Metaphase I Pairing of maternal and paternal homologous chromosomes takes place
C.	Interphase A nuclear envelope encloses each haploid set of chromo somes
D.	Prophase I Non-homologous chromosomes are separated
Answer» B. Metaphase I Pairing of maternal and paternal homologous chromosomes takes place

Discussion

10.	The number of calves produced during its whole reproductive period of a cow or buffalo is
A.	8 - 10 calves
B.	15 - 20 Calves
C.	12 - 16 Calves
D.	5 - 7 calves
Answer» B. 15 - 20 Calves

Discussion

11.	Who is regarded as the "Father of Indian Phycology'' [BHU 1999]
A.	Prof. M.O.P. Iyenger
B.	Prof. J.N. Mishra
C.	Prof. R.R. Mishra
D.	Prof. R.N. Singh
Answer» B. Prof. J.N. Mishra

Discussion

12.	Indian camel is characterised by
A.	3 humps
B.	2 humps
C.	1 humps
D.	Variable number of humps
Answer» D. Variable number of humps

Discussion

13.	Mitosis is the process by which eukaryotic cells [Pune CET 1998; CBSE PMT 2000; BHU 2000]
A.	Expose the genes for protein synthesis
B.	Become specialized in structure and function
C.	Multiply
D.	Grow
Answer» D. Grow

Discussion

14.	Cattle fed with spoilt hay of sweet clover which contains dicumarol [AIIMS 2004]
A.	Are healthier due to a good diet
B.	Catch infections easily
C.	May suffer vitamin K deficiency and prolonged bleeding
D.	May suffer from Beri-Beri due to deficiency of B vitamins
Answer» D. May suffer from Beri-Beri due to deficiency of B vitamins

Discussion

15.	If a muscle fails to give stimulation action and there is much ingestion of lactic acid, the condition is termed as
A.	Paralysis
B.	Tonus
C.	Fatigue
D.	Tetanus
Answer» D. Tetanus

Discussion

16.	Assertion : Sponges have tissue level of organization. Reason : Sponges are multicellular.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» F.

Discussion

17.	\[\alpha -\]helical model of protein was discovered by [BVP 2000; MHCET 2001]
A.	Pauling and Correy
B.	Watson
C.	Morgan
D.	Berzelus
Answer» B. Watson

Discussion

18.	Assertion : Saccharomyces ellipsoidens is Baker?s yeast and Saccharomyces cerevisiae is Wine yeast. Reason : Yeast is used to make dry ice.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

19.	Which one of the following statements with regard to embryonic development in humans is correct [AIIMS 2003]
A.	Cleavage division bring about considerable increase in the mass of protoplasm
B.	In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second
C.	With more cleavage divisions, the resultant blastomeres become larger and larger
D.	Cleavage division results in a hollow ball of cells called morula
Answer» C. With more cleavage divisions, the resultant blastomeres become larger and larger

Discussion

20.	Cerebellum of one of the following animals is provided with lateral lobes and arborvitae
A.	Reptilia
B.	Mammals
C.	Birds
D.	Amphibia
Answer» C. Birds

Discussion

21.	Read the assertion and reason carefully: Assertion : The mesocarp of drupe is edible in all cases. Reason : Coconut is a fibrous drupe.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» F.

Discussion

22.	The liquid connective tissue contains no
A.	Fibre
B.	Matrix
C.	Cell
D.	All the above
Answer» B. Matrix

Discussion

23.	Assertion : Scoliodon has cloaca at the posterior end. Reason : In Scoliodon, abdominal pores function as cloaca.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

24.	Assertion : Bidder's organs is present in toad. Reason : Bidder's organ has no such significance in toad.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

25.	Vestigial pelvic girdle and bones of hind limbs are characteristic of [Haryana PMT 2000]
A.	Whales
B.	Otters
C.	Rodents
D.	Sharks
Answer» B. Otters

Discussion

26.	National bird of India is [CPMT 1979; KCET 1994; RPMT 2000]
A.	Hornbill
B.	Black swan
C.	Peacock (Pava cristatus)
D.	House sparrow
Answer» D. House sparrow

Discussion

27.	Who amongst the following is regarded as the "Father of Indian Bryology'' [CPMT 1998]
A.	Prof. K.C. Mehta
B.	Prof. D.D. Pant
C.	Prof. S.R. Kashyap
D.	Prof. P.N. Mehra
Answer» D. Prof. P.N. Mehra

Discussion

28.	Apomixes in plant means development of a plant
A.	From root cuttings
B.	Without fusion of gametes
C.	From fusion of gametes
D.	From stem of cuttings
Answer» C. From fusion of gametes

Discussion

29.	Biosphere reserve programme started in India [Orissa JEE 2005]
A.	1986
B.	1984
C.	1982
D.	1988
Answer» B. 1984

Discussion

30.	Egg which contains very little amount of yolk are called as [RPMT 1995]
A.	Alecithal
B.	Microlecithal
C.	Mesolecithal
D.	Polylecithal
Answer» C. Mesolecithal

Discussion

31.	Biosphere reserve project was started in India during [RPMT 1996]
A.	1984
B.	1985
C.	1986
D.	1989
Answer» D. 1989

Discussion

32.	Read the assertion and reason carefully: Assertion : Sapwood is less durable than the heartwood. Reason : Hollow tree trunks are due to the disappearance of sapwood.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

33.	Assertion : Algae is a collective term for all those chlorophyll bearing organisms which are thalloid. Reason : Presently algae are grouped in three kingdom.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

34.	Assertion : Amino acids are interliked by peptide bonds to form amino acids. Reason : The smallest protein is ACTH.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

35.	Assertion : Flower is aggregation of sporophylls. Reason : Sporophylls are modified in angiosperms.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

36.	The biofertilizer present in the roots of legumes is
A.	Anabaena
B.	Rhizobium
C.	Azospirillum
D.	All of the above
Answer» C. Azospirillum

Discussion

37.	Pasteur effect is concerned with the shifting of environmental conditions from [KCET 2001]
A.	Light to dark
B.	Aerobic to anaerobic
C.	Anaerobic to aerobic
D.	Light to anaerobic
Answer» D. Light to anaerobic

Discussion

38.	Cell plate is referred as [DPMT 1981; JIPMER 2002]
A.	Germplast
B.	Idioblast
C.	Phragmoplast
D.	Middle lamella
Answer» D. Middle lamella

Discussion

39.	The antibiotic "chlorellin'' is extracted from the genus [CPMT 1994]
A.	Chlamydomonas
B.	Chlorella
C.	Spirogyra
D.	Batrachospermum
Answer» C. Spirogyra

Discussion

40.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : With age, resistance power to diseases is lowered. Reason : With age, there is gradual degeneration of thymus gland.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

Discussion

41.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : HIV causes cellular immunodeficiency. Reason : HIV kills both B ? lymphocytes and helper T ? lymphocytes.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

42.	Number of queens in a hive is
A.	10
B.	15
C.	20
D.	1
Answer» E.

Discussion

43.	Ratio of \[CuS{{O}_{4}},Ca{{(OH)}_{2}}\] and water in ?Bordeaux mixture' is
A.	0.169907407407407
B.	0.170023148148148
C.	0.212268518518518
D.	0.212384259259259
Answer» C. 0.212268518518518

Discussion

44.	Read the assertion and reason carefully: Assertion : Polynology is the study about pollen grain. Reason : It is also useful in plant taxonomy.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

45.	Assertion : The skeleton of sponges is made up of spicules. [AIIMS 1995] Reason : Composition of spicules help in classification of sponges.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

46.	The shedding of leaves, flowers or fruits due to change in the hormonal balance is plant is referred as [J&K CET 2005]
A.	Senescence
B.	Abscission
C.	Photoperiodism
D.	Vernalisation
Answer» C. Photoperiodism

Discussion

47.	Assertion : Coelenterates are known as Radiata. Reason : Coelenterates are bilaterally symmetrical.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» D. If both the assertion and reason are false

Discussion

48.	Cancer cells are more easily damaged by radiation than normal cells because they [CMC Vellore 1993]
A.	Are undergoing rapid division
B.	Are starved by nutrition
C.	Are different in structure
D.	None of the above
Answer» B. Are starved by nutrition

Discussion

49.	Assertion : Yeast are the best source of vitamin B complex. Reason : Ashbya gossypii is a filamentous yeast.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» C. If the assertion is true but the reason is false

Discussion

50.	Assertion : Fruticose lichens have the simplest thallus. Reason : The thallus is attached only at the base by a flattened disc.
A.	If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B.	If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C.	If the assertion is true but the reason is false
D.	If both the assertion and reason are false
E.	If the assertion is false but reason is true
Answer» F.

Discussion

Explore topic-wise MCQs in Testing Subject.

Which of the source of energy is non-renewable [RPMT 1990]

Assertion : None autotrophic bacteria carry out chemosynthesis. Reason : Chemosynthetic bacteria trap the small amount of energy released from inorganic compound?s oxidation to use in the reactions that synthesize carbohydrates.

Which of the following pesticides are non-biodegradable

Mode of action of following pesticides is similar

Read the assertion and reason carefully: Assertion : A simple leaf has undivided lamina. Reason : Leaves showing pinnate and palmate venation have various type of incisions.

The Zoological name of 'Lion-tailed macaque' is [BHU 1989]

Organophosphate insecticides inhibit [MP PMT 1998]

Rainfall occurs in chapparal during

Which one of the following pairs is correctly matched [MP PMT 1993]

The number of calves produced during its whole reproductive period of a cow or buffalo is

Who is regarded as the "Father of Indian Phycology'' [BHU 1999]

Indian camel is characterised by

Mitosis is the process by which eukaryotic cells [Pune CET 1998; CBSE PMT 2000; BHU 2000]

Cattle fed with spoilt hay of sweet clover which contains dicumarol [AIIMS 2004]

If a muscle fails to give stimulation action and there is much ingestion of lactic acid, the condition is termed as

Assertion : Sponges have tissue level of organization. Reason : Sponges are multicellular.

\[\alpha -\]helical model of protein was discovered by [BVP 2000; MHCET 2001]

Assertion : Saccharomyces ellipsoidens is Baker?s yeast and Saccharomyces cerevisiae is Wine yeast. Reason : Yeast is used to make dry ice.

Which one of the following statements with regard to embryonic development in humans is correct [AIIMS 2003]

Cerebellum of one of the following animals is provided with lateral lobes and arborvitae

Read the assertion and reason carefully: Assertion : The mesocarp of drupe is edible in all cases. Reason : Coconut is a fibrous drupe.

The liquid connective tissue contains no

Assertion : Scoliodon has cloaca at the posterior end. Reason : In Scoliodon, abdominal pores function as cloaca.

Assertion : Bidder's organs is present in toad. Reason : Bidder's organ has no such significance in toad.

Vestigial pelvic girdle and bones of hind limbs are characteristic of [Haryana PMT 2000]

National bird of India is [CPMT 1979; KCET 1994; RPMT 2000]

Who amongst the following is regarded as the "Father of Indian Bryology'' [CPMT 1998]

Apomixes in plant means development of a plant

Biosphere reserve programme started in India [Orissa JEE 2005]

Egg which contains very little amount of yolk are called as [RPMT 1995]

Biosphere reserve project was started in India during [RPMT 1996]

Read the assertion and reason carefully: Assertion : Sapwood is less durable than the heartwood. Reason : Hollow tree trunks are due to the disappearance of sapwood.

Assertion : Algae is a collective term for all those chlorophyll bearing organisms which are thalloid. Reason : Presently algae are grouped in three kingdom.

Assertion : Amino acids are interliked by peptide bonds to form amino acids. Reason : The smallest protein is ACTH.

Assertion : Flower is aggregation of sporophylls. Reason : Sporophylls are modified in angiosperms.

The biofertilizer present in the roots of legumes is

Pasteur effect is concerned with the shifting of environmental conditions from [KCET 2001]

Cell plate is referred as [DPMT 1981; JIPMER 2002]

The antibiotic "chlorellin'' is extracted from the genus [CPMT 1994]

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : With age, resistance power to diseases is lowered. Reason : With age, there is gradual degeneration of thymus gland.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : HIV causes cellular immunodeficiency. Reason : HIV kills both B ? lymphocytes and helper T ? lymphocytes.

Number of queens in a hive is

Ratio of \[CuS{{O}_{4}},Ca{{(OH)}_{2}}\] and water in ?Bordeaux mixture' is

Read the assertion and reason carefully: Assertion : Polynology is the study about pollen grain. Reason : It is also useful in plant taxonomy.

Assertion : The skeleton of sponges is made up of spicules. [AIIMS 1995] Reason : Composition of spicules help in classification of sponges.

The shedding of leaves, flowers or fruits due to change in the hormonal balance is plant is referred as [J&K CET 2005]

Assertion : Coelenterates are known as Radiata. Reason : Coelenterates are bilaterally symmetrical.

Cancer cells are more easily damaged by radiation than normal cells because they [CMC Vellore 1993]

Assertion : Yeast are the best source of vitamin B complex. Reason : Ashbya gossypii is a filamentous yeast.

Assertion : Fruticose lichens have the simplest thallus. Reason : The thallus is attached only at the base by a flattened disc.