14620 + Mcqs in Biology Page 211 McqOptions

10501.	Assertion : Gemmae formation in Funaria occurs in favourable condition. Reason : The gemmae form on the stem and leaves.
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

10502.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : UV ? rays are carcinogenic in nature. Reason : UV ? rays rupture DNA strands and induce mutations to cause cancers.
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

10503.	Pulses are rich in proteins because
A.	Plants are supplied with more manure
B.	Plants are irrigated
C.	Plants roots have property offixation
D.	Plants are cultivated in fertile soil
Answer» D. Plants are cultivated in fertile soil

Discussion

10504.	Assertion : All primates have a commonancestry. Reason : The most primate was shrew like animals.
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

10505.	Pyrenoids are the centre of formation of [BHU 1979]
A.	Enzymes
B.	Proteins
C.	Fats
D.	Starch
Answer» E.

Discussion

10506.	'Margarine' is prepared from [MP PMT 1997]
A.	Groundnut
B.	Coconut
C.	Almond
D.	Cashewnut
Answer» B. Coconut

Discussion

10507.	In which of the following stages chromosomes are attached on equatorial plane [CPMT 1998; Kerela CET 2002; BVP 2002]
A.	Metaphase
B.	Anaphase
C.	Telophase
D.	None of these
Answer» B. Anaphase

Discussion

10508.	Read the assertion and reason carefully: Assertion : Wheat is a caryopsis. Reason : Its pericarp is well differentiated.
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

10509.	Which of the following important rice varieties are cultivated in plains of Punjab area
A.	Basmati 370
B.	J.K.W. 277
C.	Zona 349
D.	All the above
Answer» E.

Discussion

10510.	Which of the following plant is widely accepted to respire in absence of oxygen [NCERT 1976; JIPMER 1985; MP PMT 2004]
A.	Yeast
B.	Potato
C.	Chlorella
D.	Grass
Answer» B. Potato

Discussion

10511.	Common name of fish Anguilla is [MP PMT 1994]
A.	Eel
B.	Rohu
C.	Hilsa
D.	Bombay duck
Answer» B. Rohu

Discussion

10512.	Chromosomes were seen first time by [RPMT 2003]
A.	Waldeyer
B.	Flemming
C.	Hofmeister
D.	Strasburger
Answer» D. Strasburger

Discussion

10513.	Seed are found in [MP PMT 2005]
A.	Angiosperm
B.	Bryophyta
C.	Pteridophyta
D.	Algae
Answer» B. Bryophyta

Discussion

10514.	The main difference between plant and animal cell is [CPMT 1980, 89; NCERT 1982; HP PMT 2005]
A.	Animal cells lack cell wall
B.	Plant cell has no cell wall
C.	Animal cell has a rigid cell wall
D.	Plant cells lack cell membrane
Answer» B. Plant cell has no cell wall

Discussion

10515.	Total number of autosomes in fertilized egg of man is
A.	44
B.	22
C.	23
D.	46
Answer» B. 22

Discussion

10516.	Assertion : White rust is also called blister rust. Reason : Sporangial mass forms the blister patches.
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

10517.	The presence of auxins in a solution could be tested by [MP PMT 1999]
A.	Avena sativa stem tip test
B.	Carbon tetrachloride test
C.	Iodine test
D.	Defoliation test
Answer» B. Carbon tetrachloride test

Discussion

10518.	Synaptonemal complex is formed during [CBSE PMT 2001]
A.	Meiosis
B.	Amitosis
C.	Mitosis
D.	Cytokinesis
Answer» B. Amitosis

Discussion

10519.	Term 'biosphere' is used for the zone of earth where life exists [CPMT 1989; MP PMT 1990]
A.	On lithosphere
B.	In the hydrosphere
C.	In the lithosphere and hydrosphere
D.	In the lithosphere, hydrosphere and atmosphere
Answer» E.

Discussion

10520.	Middle lamella is made up of [CPMT 1993; MHCET 2001; CBSE PMT 2002]
A.	Cellulose
B.	Suberin
C.	Calcium and magnesium pectate
D.	Lignin
Answer» C. Calcium and magnesium pectate

Discussion

10521.	Depending upon size and centromere position, the 46 chromosomes have been divided into a number of groups [CBSE PMT 1993; MP PMT 2002]
A.	6
B.	5
C.	7
D.	10
Answer» D. 10

Discussion

10522.	Abscissic acid (ABA) promotes
A.	Cell division
B.	Leaf fall
C.	Germination
D.	Budding
Answer» C. Germination

Discussion

10523.	Livestock refers to
A.	Pet animals
B.	Poultry and pet animals
C.	Domestic animals which are kept for use or profit
D.	None of the above
Answer» D. None of the above

Discussion

10524.	Assertion : Plasmodium vivax is responsible for malaria. [AIIMS 2001] Reason : Malaria is caused by polluted water.
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

10525.	Reproducing new plants by cells instead of seeds is known as [MP PMT 1994]
A.	Biofertilizer
B.	Mutation
C.	Tissue culture
D.	Antibiotics
Answer» D. Antibiotics

Discussion

10526.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Autotomy is the mechanism of self-amputation of certain body parts in self-defence. Reason : Autotomy is found in legs of prawn, tail of wall lizard and arms of starfish.
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

10527.	Assertion : Birds have no mammary gland. Reason : Pigeons secrete ?pigeon?s millk?.
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

10528.	Assertion : Fibroblasts help in protection. Reason : Fibroblasts synthesize two kinds of protein which are protective in nature.
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

10529.	Assertion : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Reason : Both chains of DNA are antiparallel.
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

10530.	The ova are released by hormone induction and fertilization by artificial insemination and then embryo is stored at\[4{}^\circ C\]for several years. This is the technique known as
A.	Artificial insemination
B.	Embryo transplantation
C.	Super ovulation
D.	Preservation of embryo
Answer» E.

Discussion

10531.	Study of snakes is called [BHU 1982]
A.	Ichthyology
B.	Enterology
C.	Serpentology
D.	Entomology
Answer» D. Entomology

Discussion

10532.	Biogeochemical cycling refers to cycling of [DPMT 1983]
A.	Energy in the ecosystem
B.	Nutrients in the ecosystem
C.	Water
D.	Gases between plants and animals
Answer» C. Water

Discussion

10533.	The organisms which participate most actively in nitrogen cycle in nature are
A.	Saprophytic angiosperms
B.	Parasitic angiosperms
C.	Bacteria
D.	Legumes
Answer» D. Legumes

Discussion

10534.	nif genes occur in [MP PMT 1996]
A.	Rhizobium
B.	Penicillium
C.	Aspergillus
D.	Streptococcus
Answer» B. Penicillium

Discussion

10535.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : AIDS can be diagnosed immediately after HIV ? infection by ELISA test. Reason : Large number of antibodies are formed spontaneously.
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

10536.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : In mammals, liver and kidneys have high power of restorative regeneration. Reason : Liver increases in size than the normal size when a part of liver is removed.
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

10537.	Nerve gas causes
A.	Inhibition or respiration
B.	Inhibition of PSII
C.	Inhibition of cholinesterase
D.	All of these
Answer» D. All of these

Discussion

10538.	Species very near to extinction if conservation measures are not promptly taken is [BHU 2003]
A.	Threatened species
B.	Rare species
C.	Endangered species
D.	Vulnerable species
Answer» D. Vulnerable species

Discussion

10539.	Which one of the following is an exclusive character of class mammalia [BHU 2000; RPMT 2002]
A.	Presence of a completely 4-chambered heart
B.	Homoiothermy
C.	Presence of muscular diaphragm
D.	Internal fertilization
Answer» D. Internal fertilization

Discussion

10540.	In bryophytes, antherozoids are
A.	Biflagellate
B.	Multiflagellate
C.	Sometimes biflagellate and sometimes multiflagellate
D.	Biflagellate in a few species and multiflagellate in the rest
Answer» B. Multiflagellate

Discussion

10541.	Bryophytes can be separated from algae, because they [CBSE PMT 1997, 99]
A.	Are thalloid forms
B.	Have no conducting tissue
C.	Possess archegonia
D.	Contain chloroplast
Answer» D. Contain chloroplast

Discussion

10542.	Soil conservation is the process where [CBSE PMT 1989, 93]
A.	Sterile soil is converted to fertile soil
B.	Soil is aerated
C.	Soil erosion is allowed
D.	Soil is protected against loss
Answer» E.

Discussion

10543.	The word "Prokaryote" means a cell [JIPMER 1995]
A.	With many nuclei
B.	With one nucleus
C.	With diffused nucleus
D.	Without chloroplast
Answer» E.

Discussion

10544.	Pharyngeal gill slits are found in [DPMT 1985]
A.	Shark
B.	Cray fish
C.	Cuttle fish
D.	Star fish
Answer» B. Cray fish

Discussion

10545.	In case of\[{{C}_{4}}\]pathway [MP PMT 1989; BHU 1982; CPMT 1994; EAMCET 1995]
A.	\[C{{O}_{2}}\]combines with PGA
B.	\[C{{O}_{2}}\]combines with PEP
C.	\[C{{O}_{2}}\]combines with RuDP
D.	\[C{{O}_{2}}\]combines with RMP
Answer» C. \[C{{O}_{2}}\]combines with RuDP

Discussion

10546.	Assertion : Cyclic photophosphorylation synthesizes ATP. Reason : ATP synthesise in cyclic photophosphorylation is not associated with NADPH formation.
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

10547.	Read the assertion and reason carefully: Assertion : Actinomorphic flowers show radial symmetry. Reason : Zygomorphic flowers have bilateral symmetry.
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

10548.	One of the ex-situ conservation methods for endangered species is [AIIMS 2005]
A.	Wildlife sanctuaries
B.	Biosphere reserves
C.	Cryopreservation
D.	National park
Answer» D. National park

Discussion

10549.	One of the following atoms often limit the primary productivity of an ecosystem
A.	Carbon
B.	Nitrogen
C.	Phosphorus
D.	Sulphur
Answer» B. Nitrogen

Discussion

10550.	In indeterminate cleavage the fate of blastomeres is fixed at which of the following stage [RPMT 2000]
A.	Blastula
B.	Gastrulation
C.	32-celled stage
D.	64-celled stage
Answer» B. Gastrulation

Discussion

Explore topic-wise MCQs in NEET.

Assertion : Gemmae formation in Funaria occurs in favourable condition. Reason : The gemmae form on the stem and leaves.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : UV ? rays are carcinogenic in nature. Reason : UV ? rays rupture DNA strands and induce mutations to cause cancers.

Pulses are rich in proteins because

Assertion : All primates have a commonancestry. Reason : The most primate was shrew like animals.

Pyrenoids are the centre of formation of [BHU 1979]

'Margarine' is prepared from [MP PMT 1997]

In which of the following stages chromosomes are attached on equatorial plane [CPMT 1998; Kerela CET 2002; BVP 2002]

Read the assertion and reason carefully: Assertion : Wheat is a caryopsis. Reason : Its pericarp is well differentiated.

Which of the following important rice varieties are cultivated in plains of Punjab area

Which of the following plant is widely accepted to respire in absence of oxygen [NCERT 1976; JIPMER 1985; MP PMT 2004]

Common name of fish Anguilla is [MP PMT 1994]

Chromosomes were seen first time by [RPMT 2003]

Seed are found in [MP PMT 2005]

The main difference between plant and animal cell is [CPMT 1980, 89; NCERT 1982; HP PMT 2005]

Total number of autosomes in fertilized egg of man is

Assertion : White rust is also called blister rust. Reason : Sporangial mass forms the blister patches.

The presence of auxins in a solution could be tested by [MP PMT 1999]

Synaptonemal complex is formed during [CBSE PMT 2001]

Term 'biosphere' is used for the zone of earth where life exists [CPMT 1989; MP PMT 1990]

Middle lamella is made up of [CPMT 1993; MHCET 2001; CBSE PMT 2002]

Depending upon size and centromere position, the 46 chromosomes have been divided into a number of groups [CBSE PMT 1993; MP PMT 2002]

Abscissic acid (ABA) promotes

Livestock refers to

Assertion : Plasmodium vivax is responsible for malaria. [AIIMS 2001] Reason : Malaria is caused by polluted water.

Reproducing new plants by cells instead of seeds is known as [MP PMT 1994]

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Autotomy is the mechanism of self-amputation of certain body parts in self-defence. Reason : Autotomy is found in legs of prawn, tail of wall lizard and arms of starfish.

Assertion : Birds have no mammary gland. Reason : Pigeons secrete ?pigeon?s millk?.

Assertion : Fibroblasts help in protection. Reason : Fibroblasts synthesize two kinds of protein which are protective in nature.

Assertion : The nitrogen bases of the two chains of DNA are held together by hydrogen bonds. Reason : Both chains of DNA are antiparallel.

The ova are released by hormone induction and fertilization by artificial insemination and then embryo is stored at\[4{}^\circ C\]for several years. This is the technique known as

Study of snakes is called [BHU 1982]

Biogeochemical cycling refers to cycling of [DPMT 1983]

The organisms which participate most actively in nitrogen cycle in nature are

nif genes occur in [MP PMT 1996]

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : AIDS can be diagnosed immediately after HIV ? infection by ELISA test. Reason : Large number of antibodies are formed spontaneously.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : In mammals, liver and kidneys have high power of restorative regeneration. Reason : Liver increases in size than the normal size when a part of liver is removed.

Nerve gas causes

Species very near to extinction if conservation measures are not promptly taken is [BHU 2003]

Which one of the following is an exclusive character of class mammalia [BHU 2000; RPMT 2002]

In bryophytes, antherozoids are

Bryophytes can be separated from algae, because they [CBSE PMT 1997, 99]

Soil conservation is the process where [CBSE PMT 1989, 93]

The word "Prokaryote" means a cell [JIPMER 1995]

Pharyngeal gill slits are found in [DPMT 1985]

In case of\[{{C}_{4}}\]pathway [MP PMT 1989; BHU 1982; CPMT 1994; EAMCET 1995]

Assertion : Cyclic photophosphorylation synthesizes ATP. Reason : ATP synthesise in cyclic photophosphorylation is not associated with NADPH formation.

Read the assertion and reason carefully: Assertion : Actinomorphic flowers show radial symmetry. Reason : Zygomorphic flowers have bilateral symmetry.

One of the ex-situ conservation methods for endangered species is [AIIMS 2005]

One of the following atoms often limit the primary productivity of an ecosystem

In indeterminate cleavage the fate of blastomeres is fixed at which of the following stage [RPMT 2000]