14620 + Mcqs in Biology Page 226 McqOptions

11251.	In physiological anisogamy
A.	Gametes are morphologically similar but physiologically dissimilar
B.	Gametes are morphologically dissimilar but physiologicaly similar
C.	Gametes are morphologically and physiologically similar
D.	None of the above
Answer» B. Gametes are morphologically dissimilar but physiologicaly similar

Discussion

11252.	End product of anaerobic respiration is [CPMT 1975, 90; AFMC 1995; RPMT 1999]
A.	Glucose
B.	Pyruvic acid
C.	Ethyl alcohol and\[C{{O}_{2}}\]
D.	None of the above
Answer» D. None of the above

Discussion

11253.	In animal cell cytokinesis takes place by
A.	Cell furrow method
B.	Cell plate method
C.	Both (a) and (b)
D.	No cytokinesis takes place
Answer» B. Cell plate method

Discussion

11254.	Which one is not matched [Bihar PMT 1988]
A.	Organochlorine-DDT
B.	Pyrethroid-Atrazine
C.	Organophosphate-Malathion
D.	Carbamate-Carbofuran
Answer» C. Organophosphate-Malathion

Discussion

11255.	In Hatch and Slack pathway [BHU 2003]
A.	Chloroplast are of same type
B.	Occurs in Kranz anatomy where mesophyll have small chloroplast whereas bundle sheath have agranal chloroplast
C.	Occurs in Kranz anatomy when mesophyll have small chloroplast where a bundle sheath have larger chloroplast
D.	Kranz anatomy where mesophyll cell are diffused
Answer» C. Occurs in Kranz anatomy when mesophyll have small chloroplast where a bundle sheath have larger chloroplast

Discussion

11256.	Schleiden (1838) proposed that cell is the structural and functional unit of life. His idea was a [CPMT 2004]
A.	Assumption
B.	Generalization
C.	Hypothesis
D.	Observation
Answer» D. Observation

Discussion

11257.	Assertion : Mushrooms are called fairy rings. Reason : Mushroom consists of two parts-stipe and pileus.
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

11258.	Assertion : Hydra is green coloured. Reason : Green colour is due to the presence of chlorophyll in their body wall.
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

11259.	What are allosomes [BHU 1986]
A.	Granular structures on chromosomes
B.	Node like structures on chromosomes
C.	Sex chromosomes
D.	None of the above
Answer» D. None of the above

Discussion

11260.	Assertion : Sponges do not show any animal nature. Reason : Sponges are sessile with no apparent way of capturing food or eliminating 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» F.

Discussion

11261.	Abscission zone may be induced to be formed by
A.	Auxins
B.	Gibberellins
C.	Cytokinins
D.	Abscisic acid
Answer» E.

Discussion

11262.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : "Drug resistance" is caused due to improper use of antibiotics. Reason : Antibiotics are produced by micro organisms.
A.	If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.	If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.	If assertion is true but reason is false.
D.	If the assertion and reason both are false.
E.	If assertion is false but reason is true.
Answer» C. If assertion is true but reason is false.

Discussion

11263.	Assertion : Amoeba contains a contractile vacuole. Reason : It helps in both digestion and osmoregulation.
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

11264.	Assertion : Plasmids are extrachromosomal DNA. Reason : Plasmids are found in bacteria and are useful in genetic engineering. [AIIMS 2001]
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

11265.	Assertion : Scaffold proteins are nonhistone chromosomal proteins. Reason : They are rich in lysine and arginine.
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

11266.	Assertion : The fungi are widespread in distribution and they even live on inside other plants and animals. Reason : Fungi are able to grow anywhere on land, water or on other organisms because they have a variety of pigments, including chlorophyll, carotenoids, fucooxanthin and phycoerythrin. [AIIMS 2005]
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

11267.	The eggs of elephant are [DPMT 1984]
A.	Macrolecithal and centrolecithal
B.	Microlecithal and telolecithal
C.	Mesolecithal and homolecithal
D.	Microlecithal and isolecithal
Answer» E.

Discussion

11268.	By which age, the number of uriniferous tubules is reduced to half in man
A.	40 years
B.	50 years
C.	70 years
D.	75 years
Answer» E.

Discussion

11269.	Assertion : Liver helps in destruction of germs. Reason : Liver has some components which help in killing of germs.
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

11270.	Assertion : Rhoeo leaves contain anthocyanin pigments in epidermal cells. Reason : Anthocyanins are accessory photosynthetic pigments. [AIIMS 2003]
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

11271.	Assertion : The regulation of RBC production is accomplished by FSH. Reason : Erythropoietin, hormone circulates to red bone marrow where it increases stem cell mitosis and speed up development of RBCs. [AIIMS 2002]
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

11272.	Debove's membrane is a layer of [BHU 2004]
A.	Muscular tissue
B.	Epithelial tissue
C.	Connective tissue
D.	All of these
Answer» D. All of these

Discussion

11273.	Triticum aestivium the common bread wheat is [BVP 2001, 04]
A.	Triploid with 21 chromosome
B.	Hexaploid with 42 chromosome
C.	Tetraploid with 30 chromosome
D.	Diploid with 14 chromosome
Answer» C. Tetraploid with 30 chromosome

Discussion

11274.	Members of which group of the followings, have three ossicles in their internal ear
A.	Amphibia
B.	Reptilia
C.	Aves
D.	Mammalia
Answer» E.

Discussion

11275.	Yak transports
A.	Goods
B.	People
C.	People and goods
D.	None of these
Answer» D. None of these

Discussion

11276.	Identify the correct match between ?tiger reserve' and its state [CBSE PMT 1995]
A.	Corbett - Madhya Pradesh
B.	Palamau - Orissa
C.	Manas - Assam
D.	Bandipur - Tamil Nadu
Answer» D. Bandipur - Tamil Nadu

Discussion

11277.	Assertion : Cellular slime moulds are called communal slime moulds. Reason : They show division of labour.
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

11278.	A discrete multiprotein structure on the chromosome which contains enzymes for DNA duplication is called as
A.	Replicon
B.	Resolvase
C.	Replisome
D.	Replicative form
Answer» D. Replicative form

Discussion

11279.	Assertion : Aflatoxins are produced by Aspergillus flavus. Reason : These toxins are useful to mankind. [AIIMS 2000]
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

11280.	Which one of the following histone is not present in the core particle of nucleosome
A.	\[{{H}_{1}}\]
B.	\[{{H}_{2}}\]
C.	\[{{H}_{3}}\]
D.	\[{{H}_{4}}\]
Answer» B. \[{{H}_{2}}\]

Discussion

11281.	Among pesticides zinc phosphide is used for [MP PMT 1995]
A.	Spraying
B.	Fumigation
C.	Killing weevils
D.	Rodents
Answer» D. Rodents

Discussion

11282.	Read the assertion and reason carefully: Assertion : Poinsettia leaves attract pollinators. Reason : Floral parts are modified 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» C. If the assertion is true but the reason is false

Discussion

11283.	Most primitive living mammals which provide an evidence of organic evolution from geographical distribution are found in [AIIMS 1998]
A.	Afrcia
B.	Australia
C.	China
D.	India
Answer» C. China

Discussion

11284.	Starch and sugar together are termed as:
A.	fats
B.	proteins
C.	glucose
D.	carbohydrates
Answer» E.

Discussion

11285.	In which of the following habitats does the diurnal temperature of soil surface vary most [CBSE PMT 2004]
A.	Desert
B.	Grassland
C.	Shrub land
D.	Forest
Answer» B. Grassland

Discussion

11286.	The name of flying frog is [EAMCET 1998]
A.	Rhacophorus
B.	Bufo
C.	Phyllobates
D.	Necturus
Answer» B. Bufo

Discussion

11287.	Which is synthesized in \[{{G}_{1}}\] phase [CPMT 2004]
A.	DNA polymerase
B.	Histones
C.	Nucleolar DNA
D.	Tubulin protein
Answer» B. Histones

Discussion

11288.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Champagnes are wines. Reason : Champagnes are made in France.
A.	If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.	If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.	If assertion is true but reason is false.
D.	If the assertion and reason both are false.
E.	If assertion is false but reason is true.
Answer» C. If assertion is true but reason is false.

Discussion

11289.	Flight muscles of bird are attached to [CBSE PMT 1989; Kerala PMT 2001]
A.	Clavicle
B.	Coracoid
C.	Keel of sternum
D.	Scapula
Answer» D. Scapula

Discussion

11290.	Assertion : Characters of cyclostomes show an advance over Amphioxus. Reason : Cyclostomes have some degenerated characters.
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

11291.	Collagen is [CBSE PMT 2002]
A.	Lipid
B.	Carbohydrate
C.	Globular protein
D.	Fibrous protein
Answer» E.

Discussion

11292.	Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Dye workers generally suffer from bladder cancer. Reason : These are more exposed to a carcinogenic chemical benzpyrene.
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

11293.	Which of the following helps in maintaining body hot [NCERT 1978]
A.	Sweat glands
B.	Connective tissue
C.	Adipose tissue
D.	Hair
Answer» D. Hair

Discussion

11294.	A connective tissue [DPMT 1993]
A.	Has no matrix
B.	Covers the skin
C.	Has abundant matrix
D.	None of these
Answer» D. None of these

Discussion

11295.	Flightless bird, cassowary is found in [CBSE PMT 1996]
A.	Australia
B.	Newzealand
C.	Indonesia
D.	Mauritious
Answer» B. Newzealand

Discussion

11296.	All types of latitudinal biomes are found telescoped on high hills found in
A.	Tropical areas
B.	Subtropical areas
C.	Temperate areas
D.	None of the above
Answer» B. Subtropical areas

Discussion

11297.	"Cytochimeras'' means
A.	Cells having haploid number of chromosomes
B.	Cells having two nuclei
C.	Cells having different chromosomes than other vegetative cells
D.	None of the above
Answer» D. None of the above

Discussion

11298.	Assertion : In leptosporangiate development, sporangia are formed from a group of initials. Reason : Eusporangiate development of sporangia starts from single initial.
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

11299.	Golden age of reptiles is [CBSE PMT 1994]
A.	Palaeozoic
B.	Mesozoic
C.	Coenozoic
D.	Proterozoic
Answer» C. Coenozoic

Discussion

11300.	Amount of nitrogen fixed electrochemically and photochemically is [Kerala 2000]
A.	\[140mg/{{m}^{2}}/yr\]
B.	\[78mg/{{m}^{2}}/yr\]
C.	\[35mg/{{m}^{2}}/yr\]
D.	\[15mg/{{m}^{2}}/yr\]
E.	\[350mg/{{m}^{2}}/yr\]
Answer» D. \[15mg/{{m}^{2}}/yr\]

Discussion

Explore topic-wise MCQs in NEET.

In physiological anisogamy

End product of anaerobic respiration is [CPMT 1975, 90; AFMC 1995; RPMT 1999]

In animal cell cytokinesis takes place by

Which one is not matched [Bihar PMT 1988]

In Hatch and Slack pathway [BHU 2003]

Schleiden (1838) proposed that cell is the structural and functional unit of life. His idea was a [CPMT 2004]

Assertion : Mushrooms are called fairy rings. Reason : Mushroom consists of two parts-stipe and pileus.

Assertion : Hydra is green coloured. Reason : Green colour is due to the presence of chlorophyll in their body wall.

What are allosomes [BHU 1986]

Assertion : Sponges do not show any animal nature. Reason : Sponges are sessile with no apparent way of capturing food or eliminating water.

Abscission zone may be induced to be formed by

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : "Drug resistance" is caused due to improper use of antibiotics. Reason : Antibiotics are produced by micro organisms.

Assertion : Amoeba contains a contractile vacuole. Reason : It helps in both digestion and osmoregulation.

Assertion : Plasmids are extrachromosomal DNA. Reason : Plasmids are found in bacteria and are useful in genetic engineering. [AIIMS 2001]

Assertion : Scaffold proteins are nonhistone chromosomal proteins. Reason : They are rich in lysine and arginine.

The eggs of elephant are [DPMT 1984]

By which age, the number of uriniferous tubules is reduced to half in man

Assertion : Liver helps in destruction of germs. Reason : Liver has some components which help in killing of germs.

Assertion : Rhoeo leaves contain anthocyanin pigments in epidermal cells. Reason : Anthocyanins are accessory photosynthetic pigments. [AIIMS 2003]

Assertion : The regulation of RBC production is accomplished by FSH. Reason : Erythropoietin, hormone circulates to red bone marrow where it increases stem cell mitosis and speed up development of RBCs. [AIIMS 2002]

Debove's membrane is a layer of [BHU 2004]

Triticum aestivium the common bread wheat is [BVP 2001, 04]

Members of which group of the followings, have three ossicles in their internal ear

Yak transports

Identify the correct match between ?tiger reserve' and its state [CBSE PMT 1995]

Assertion : Cellular slime moulds are called communal slime moulds. Reason : They show division of labour.

A discrete multiprotein structure on the chromosome which contains enzymes for DNA duplication is called as

Assertion : Aflatoxins are produced by Aspergillus flavus. Reason : These toxins are useful to mankind. [AIIMS 2000]

Which one of the following histone is not present in the core particle of nucleosome

Among pesticides zinc phosphide is used for [MP PMT 1995]

Read the assertion and reason carefully: Assertion : Poinsettia leaves attract pollinators. Reason : Floral parts are modified leaves.

Most primitive living mammals which provide an evidence of organic evolution from geographical distribution are found in [AIIMS 1998]

Starch and sugar together are termed as:

In which of the following habitats does the diurnal temperature of soil surface vary most [CBSE PMT 2004]

The name of flying frog is [EAMCET 1998]

Which is synthesized in \[{{G}_{1}}\] phase [CPMT 2004]

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Champagnes are wines. Reason : Champagnes are made in France.

Flight muscles of bird are attached to [CBSE PMT 1989; Kerala PMT 2001]

Assertion : Characters of cyclostomes show an advance over Amphioxus. Reason : Cyclostomes have some degenerated characters.

Collagen is [CBSE PMT 2002]

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Dye workers generally suffer from bladder cancer. Reason : These are more exposed to a carcinogenic chemical benzpyrene.

Which of the following helps in maintaining body hot [NCERT 1978]

A connective tissue [DPMT 1993]

Flightless bird, cassowary is found in [CBSE PMT 1996]

All types of latitudinal biomes are found telescoped on high hills found in

"Cytochimeras'' means

Assertion : In leptosporangiate development, sporangia are formed from a group of initials. Reason : Eusporangiate development of sporangia starts from single initial.

Golden age of reptiles is [CBSE PMT 1994]

Amount of nitrogen fixed electrochemically and photochemically is [Kerala 2000]