Bone marrow is made up of [BHU 1978, 85; CPMT 1984, 87]

Muscular fibre and fatty tissue

Fatty tissue and areolar tissue

Fatty tissue, areolar tissue and blood vessel

Read the assertion and reason carefully: Assertion : Bulliform cells are useful in the unrolling of leaf. Reason : Bulliform leaves store water.

If the assertion is true but the reason is false

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

If the assertion is false but reason is true

In Garlic (Allium sativum) each fleshy scale represents a bud called bulblet or clove. It is a bud because

It arises in the axil of tunicated leaf

It has a growing point and immature leaves

In maize, hybrid vigour is exploited by:

harvesting seeds from the most productive plants,

bombarding the protoplast with DNA.

crossing of two inbreed parental lines.

Assertion : In ainmals, carbohydrates are mostly translocated as sucrose. Reason : In plants, excess of sugar is stored as starch.

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

If the assertion is false but reason is true

A rigid cell wall is usually seen in members of chlorophyceae. This cell wall is constituted of:

pectose (inner layer) and peptidoglycan (outer layer)

cellulose (outer layer) and algin (inner layer)

chitin (outer layer) and pectose (inner layer)

cellulose (inner layer) and pectose (outer layer)

pectose (inner layer) and peptidoglycan (outer layer)

In plants like Nymphaea which is attached emerged hydrophyte, the stomata are present on [CPMT 1986]

Abaxial (lower) surface of leaf

Adaxial (upper) surface of leaf

Abaxial (lower) surface of leaf

Select the mismatch between a vitamin and its deficiency disease, among the following: (AIEEE 2004)

Niacin Damage to skin and lining of intestine

Thiamine Damage to nerves and heart

Riboflavin Slow clotting of blood

Which of the following illustrates pleiotropy?

In fruit flies, the genes for scarlet eyes and hairy body are located on the same chromosome.

Matings between earless sheep and long eared sheep always result in short-eared offspring.

Wheat kernels can range from white to red in color, a trait controlled by several genes.

The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems.

Need for a proper system of classification arises because

the organisms of the past cannot be studied without it.

classification help in knowing the relationship among the different group of organisms.

it is not possible to study every organism.

Give the of name the cell division type at A, B, C and D.

A-Mitosis, B-No 'division, C-Meiosis-II, D-Meiosis-I

A-Meiosis-I, B-Mitosis, C-Mitosis, D-Meiosis

A-Meiosis-I, B-Meiosis-II, C-No division, D-Mitosis

A-Mitosis, B-No 'division, C-Meiosis-II, D-Meiosis-I

A-Mitosis, B-Mitosis, C-Meiosis-I, D-Meiosis-I

Inability to perceive stimulus for flowering.

Development of plants in darkness.

Development of plants without fusion of gametes

Inability to perceive stimulus for flowering.

Effect of low temperature on plant growth.

Read the assertion and reason carefully: Assertion : Thick cuticle is mostly present in disease resistant plants. Reason : Disease causing agents cannot grow on cuticle and cannot invade the cuticle. [AIIMS 1997]

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

If the assertion is false but reason is true

Function of funicle includes:

Supplying nutrition to the body from the palcenta

Which of the following best represents the components that are necessary for photosynthesis to take place?

Mitochondria, accessory pigments, visible light, water and carbon dioxide.

Chloroplasts, accessory pigments, visible light, water and carbon dioxide.

Mitochondria, chlorophyll, visible light, water and oxygen.

Chloroplasts, chlorophyll, visible light, water and carbon dioxide.

The success of birth control programmes in controlling population growth is dependent on:

Acceptability of the above by the people

14620 + Mcqs in Biology in NEET Page 3 McqOptions

101.	Which one is the largest root parasite [BHU 1983, 87, 96, 98; CPMT 1998]
A.	Rafflesia
B.	Monotropa
C.	Arceuthobium
D.	All of these
Answer» B. Monotropa

Discussion

102.	Bone marrow is made up of [BHU 1978, 85; CPMT 1984, 87]
A.	Muscular fibre and fatty tissue
B.	Fatty tissue and areolar tissue
C.	Fatty tissue and cartilage
D.	Fatty tissue, areolar tissue and blood vessel
Answer» E.

Discussion

103.	Read the assertion and reason carefully: Assertion : Bulliform cells are useful in the unrolling of leaf. Reason : Bulliform leaves store 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» C. If the assertion is true but the reason is false

Discussion

104.	Which of the following is an example for sex-influenced inheritance?
A.	Baldness
B.	Haemophilia
C.	Colour blindness
D.	Down's syndrome
Answer» B. Haemophilia

Discussion

105.	A dihybrid ratio of 1:4:6:4:1 is obtained instead of 9:3:3:l. This is an example of:
A.	Complementary genes
B.	Supplementary genes
C.	Polygenic inheritance
D.	Pleiotropic genes
Answer» D. Pleiotropic genes

Discussion

106.	In Garlic (Allium sativum) each fleshy scale represents a bud called bulblet or clove. It is a bud because
A.	It is borne on stem
B.	It arises in the axil of tunicated leaf
C.	It has a growing point and immature leaves
D.	All of these
Answer» E.

Discussion

107.	Potato belongs to the family [DPMT 1980]
A.	Solanaceae
B.	Compositae
C.	Gramineae
D.	Cruciferae
Answer» B. Compositae

Discussion

108.	In maize, hybrid vigour is exploited by:
A.	harvesting seeds from the most productive plants,
B.	inducing mutations.
C.	bombarding the protoplast with DNA.
D.	crossing of two inbreed parental lines.
Answer» E.

Discussion

109.	In Opuntia the spine is the modification of:
A.	Stem
B.	Root
C.	Leaf
D.	None of these
Answer» D. None of these

Discussion

110.	The fresh leaves and recognisable litter are found in which of the following horizon of soil?
A.	A-horizon
B.	B-horizon
C.	C-horizon
D.	0-horizon
Answer» E.

Discussion

111.	The Bacillus haemophilus influenza causes [DPMT 1992]
A.	Influenza
B.	Pneumonia
C.	A form meningitis
D.	Whooping cough
Answer» B. Pneumonia

Discussion

112.	A mature sieve tube differs from vessel in [DPMT 1982]
A.	Being nearly dead
B.	Lacking cytoplasm
C.	Lacking a functional nucleus
D.	Absence of lignified walls
Answer» E.

Discussion

113.	In terrestrial habitats, temperature and rainfall conditions are influenced by:
A.	Water transformations
B.	Transpiration
C.	Thermoperiodism
D.	Translocation
Answer» C. Thermoperiodism

Discussion

114.	Cobalt as a rare element is essential in the synthesis of this vitamin: (Pb. PMT 2003; AMU 2003; Kerala PMT 2003)
A.	vitamin C
B.	vitamin D
C.	vitamin \[{{B}_{1}}\]
D.	vitamin \[{{B}_{6}}\]
E.	vitamin \[{{B}_{12}}\]
Answer» F.

Discussion

115.	Assertion : In ainmals, carbohydrates are mostly translocated as sucrose. Reason : In plants, excess of sugar is stored as starch.
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

116.	Bamboo reproduces by:
A.	Rhizomes
B.	Tubers
C.	Corms
D.	Stolons
Answer» B. Tubers

Discussion

117.	When the pollen tube enters the ovule through the integuments, the phenomenon is known as:
A.	Isogamy
B.	Porogamy
C.	Mesogamy
D.	Chalazogamy
Answer» D. Chalazogamy

Discussion

118.	Bacterial ribosomes are called [MP PMT 1989; BHU 1989]
A.	Autosomes
B.	Dictyosomes
C.	Centrosomes
D.	Polyribosomes
Answer» E.

Discussion

119.	Which of the following tissue is called as "homeostatic reservoir''
A.	Cartilage
B.	Bone
C.	Calcified cartilage
D.	All the above
Answer» C. Calcified cartilage

Discussion

120.	A rigid cell wall is usually seen in members of chlorophyceae. This cell wall is constituted of:
A.	cellulose (outer layer) and algin (inner layer)
B.	chitin (outer layer) and pectose (inner layer)
C.	cellulose (inner layer) and pectose (outer layer)
D.	pectose (inner layer) and peptidoglycan (outer layer)
Answer» D. pectose (inner layer) and peptidoglycan (outer layer)

Discussion

121.	Cellulosic cell wall can be specifically stained by
A.	Zinc chloride
B.	Fluoroglucinol
C.	Methyl blue
D.	Sudan IV
Answer» B. Fluoroglucinol

Discussion

122.	Which of the following statement about cell junctions is incorrect? (i) All the cells of the epithelium are held together with little intercellular materials. (ii) In almost all animal tissues, specialised junction provide both structural and functional link between its individual cells. (iii) Tight junctions help to stop substances from leaking across a tissue. (iv) Adhering junctions provide cementing to keep neighbouring cells together. (v) Gap junctions provide cytoplasmic channels between cells for passage of ions, small molecules and sometimes big molecules.
A.	(ii) and (iii)
B.	(i) and (ii)
C.	Only (v)
D.	None of the above
Answer» E.

Discussion

123.	In plants like Nymphaea which is attached emerged hydrophyte, the stomata are present on [CPMT 1986]
A.	Adaxial (upper) surface of leaf
B.	Abaxial (lower) surface of leaf
C.	On both surface of leaf
D.	None of the above
Answer» B. Abaxial (lower) surface of leaf

Discussion

124.	Select the mismatch between a vitamin and its deficiency disease, among the following: (AIEEE 2004)
A.	Niacin Damage to skin and lining of intestine
B.	Thiamine Damage to nerves and heart
C.	Riboflavin Slow clotting of blood
D.	Ascorbic acid Scurvy
Answer» D. Ascorbic acid Scurvy

Discussion

125.	Which of the following illustrates pleiotropy?
A.	In fruit flies, the genes for scarlet eyes and hairy body are located on the same chromosome.
B.	Matings between earless sheep and long eared sheep always result in short-eared offspring.
C.	Wheat kernels can range from white to red in color, a trait controlled by several genes.
D.	The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems.
Answer» E.

Discussion

126.	Need for a proper system of classification arises because
A.	the organisms of the past cannot be studied without it.
B.	classification help in knowing the relationship among the different group of organisms.
C.	it is not possible to study every organism.
D.	All of the above
Answer» E.

Discussion

127.	Chromosomes that determine male sex in Melandrium plant is [DPMT 2004]
A.	Y chromosome
B.	X chromosome
C.	XX chromosome
D.	None of these
Answer» B. X chromosome

Discussion

128.	Give the of name the cell division type at A, B, C and D.
A.	A-Meiosis-I, B-Mitosis, C-Mitosis, D-Meiosis
B.	A-Meiosis-I, B-Meiosis-II, C-No division, D-Mitosis
C.	A-Mitosis, B-No 'division, C-Meiosis-II, D-Meiosis-I
D.	A-Mitosis, B-Mitosis, C-Meiosis-I, D-Meiosis-I
Answer» C. A-Mitosis, B-No 'division, C-Meiosis-II, D-Meiosis-I

Discussion

129.	Apomixis is:
A.	Development of plants in darkness.
B.	Development of plants without fusion of gametes
C.	Inability to perceive stimulus for flowering.
D.	Effect of low temperature on plant growth.
Answer» C. Inability to perceive stimulus for flowering.

Discussion

130.	Scurvy is a disease caused by: (AFMC2005; Orissa JEE 2010)
A.	a virus
B.	deficiency of vitamin E
C.	deficiency of vitamin D
D.	deficiency of ascorbic acid
Answer» E.

Discussion

131.	Atoms combine in chemical reactions to form
A.	Elements
B.	Energy
C.	Compounds
D.	Specific heat
Answer» D. Specific heat

Discussion

132.	Read the assertion and reason carefully: Assertion : Thick cuticle is mostly present in disease resistant plants. Reason : Disease causing agents cannot grow on cuticle and cannot invade the cuticle. [AIIMS 1997]
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

133.	The primary growth is effected by
A.	Primary cambium
B.	Promeristem
C.	Lateral meristem
D.	Cambium
Answer» C. Lateral meristem

Discussion

134.	The genotype of a boy having sexual characters of a girl is [DPMT 1985]
A.	XXX
B.	XXY
C.	XO
D.	XYY
Answer» C. XO

Discussion

135.	Bryophytes are of [CPMT 1972; MP PMT 1987]
A.	Great economic value
B.	No value at all
C.	Great ecological importance
D.	A lot of aesthetic value
Answer» D. A lot of aesthetic value

Discussion

136.	Lateral meristem is responsible for [MP PMT 2004]
A.	Growth in length
B.	Growth in parenchyma
C.	Growth in thickness
D.	Growth in cortex
Answer» D. Growth in cortex

Discussion

137.	Predominant form of lipid present in biomembranes [AMU 2001]
A.	Free fatty acids
B.	Cholesterol
C.	Triacylglycerols
D.	Phospholipids
Answer» E.

Discussion

138.	RNA differs from DNA in having [Pb. PMT 2000]
A.	Uracil
B.	Adenine
C.	Cytosine
D.	Thymine
Answer» B. Adenine

Discussion

139.	Influx of \[{{K}^{+}}\] ions of subsidiary cells into guard cells and efflux of \[{{H}^{+}}\] ions from guard cells lead to:
A.	Closing of stomata
B.	Opening of stomata
C.	Exosmosis
D.	Plasmolysis
Answer» C. Exosmosis

Discussion

140.	Transport of different types of solute substances takes place by:
A.	Bulk flow system
B.	Combined response
C.	Facilitated diffusion
D.	Pressured transport
Answer» B. Combined response

Discussion

141.	In a somatic cell, there are 16 chromosomes. What will be the number of chromosomes in the pollen mother cell of the plant?
A.	16
B.	8
C.	24
D.	32
Answer» B. 8

Discussion

142.	Function of funicle includes:
A.	Support to the body
B.	Supplying nutrition to the body from the palcenta
C.	Both [a] and [b]
D.	None of these
Answer» D. None of these

Discussion

143.	If the haploid number in a flowering plant is 14. What shall be the number of chromosomes integuments, antipodal cells, embryo, endosperm and nucellus respectively?
A.	14, 28, 7, 42, 21
B.	7, 14, 42, 28, 14
C.	28, 14, 28, 42, 28
D.	42, 28, 14, 28, 14
Answer» D. 42, 28, 14, 28, 14

Discussion

144.	The rate of erythropoiesis is controlled by
A.	An enzyme
B.	A hormone
C.	Spleen
D.	Brain
Answer» C. Spleen

Discussion

145.	Which of the following best represents the components that are necessary for photosynthesis to take place?
A.	Mitochondria, accessory pigments, visible light, water and carbon dioxide.
B.	Chloroplasts, accessory pigments, visible light, water and carbon dioxide.
C.	Mitochondria, chlorophyll, visible light, water and oxygen.
D.	Chloroplasts, chlorophyll, visible light, water and carbon dioxide.
Answer» E.

Discussion

146.	Term 'Leptome' is a synonym of
A.	Companion cells
B.	Sieve elements
C.	Phloem fibres
D.	Phloem parenchyma
Answer» C. Phloem fibres

Discussion

147.	Choose the correct statements given below, regarding contraception. (i) Medical Termination of Pregnancy (MTP during first trimester is generally safe. (ii) Generally chances of conception are nil until mother breast-feeds the infant upto two years. (iii) Intrauterine devices like copper-T are effective contraceptives. (iv) Contraception pills may be taken upto one week after coitus to prevent conception.
A.	(i) and (ii)
B.	(ii) and (iii)
C.	(iii) and (iv)
D.	(i) and (iii)
Answer» E.

Discussion

148.	The success of birth control programmes in controlling population growth is dependent on:
A.	Use of contraceptives
B.	Tubectomy
C.	Vasectomy
D.	Acceptability of the above by the people
Answer» E.

Discussion

149.	A medical technician while observing a human blood smear under the microscope notes the presence of barrbody close to the nuclear membrane in the WBC. This indicates that person under investigation is [Kerala CET 2003]
A.	Colour blind
B.	Haemophilic
C.	Normal female
D.	Normal male
Answer» D. Normal male

Discussion

150.	A water molecule shows
A.	Polarity
B.	Solvency
C.	Heat resistance
D.	All of these
Answer» E.

Discussion

Explore topic-wise MCQs in NEET.

Which one is the largest root parasite [BHU 1983, 87, 96, 98; CPMT 1998]

Bone marrow is made up of [BHU 1978, 85; CPMT 1984, 87]

Read the assertion and reason carefully: Assertion : Bulliform cells are useful in the unrolling of leaf. Reason : Bulliform leaves store water.

Which of the following is an example for sex-influenced inheritance?

A dihybrid ratio of 1:4:6:4:1 is obtained instead of 9:3:3:l. This is an example of:

In Garlic (Allium sativum) each fleshy scale represents a bud called bulblet or clove. It is a bud because

Potato belongs to the family [DPMT 1980]

In maize, hybrid vigour is exploited by:

In Opuntia the spine is the modification of:

The fresh leaves and recognisable litter are found in which of the following horizon of soil?

The Bacillus haemophilus influenza causes [DPMT 1992]

A mature sieve tube differs from vessel in [DPMT 1982]

In terrestrial habitats, temperature and rainfall conditions are influenced by:

Cobalt as a rare element is essential in the synthesis of this vitamin: (Pb. PMT 2003; AMU 2003; Kerala PMT 2003)

Assertion : In ainmals, carbohydrates are mostly translocated as sucrose. Reason : In plants, excess of sugar is stored as starch.

Bamboo reproduces by:

When the pollen tube enters the ovule through the integuments, the phenomenon is known as:

Bacterial ribosomes are called [MP PMT 1989; BHU 1989]

Which of the following tissue is called as "homeostatic reservoir''

A rigid cell wall is usually seen in members of chlorophyceae. This cell wall is constituted of:

Cellulosic cell wall can be specifically stained by

In plants like Nymphaea which is attached emerged hydrophyte, the stomata are present on [CPMT 1986]

Select the mismatch between a vitamin and its deficiency disease, among the following: (AIEEE 2004)

Which of the following illustrates pleiotropy?

Need for a proper system of classification arises because

Chromosomes that determine male sex in Melandrium plant is [DPMT 2004]

Give the of name the cell division type at A, B, C and D.

Apomixis is:

Scurvy is a disease caused by: (AFMC2005; Orissa JEE 2010)

Atoms combine in chemical reactions to form

Read the assertion and reason carefully: Assertion : Thick cuticle is mostly present in disease resistant plants. Reason : Disease causing agents cannot grow on cuticle and cannot invade the cuticle. [AIIMS 1997]

The primary growth is effected by

The genotype of a boy having sexual characters of a girl is [DPMT 1985]

Bryophytes are of [CPMT 1972; MP PMT 1987]

Lateral meristem is responsible for [MP PMT 2004]

Predominant form of lipid present in biomembranes [AMU 2001]

RNA differs from DNA in having [Pb. PMT 2000]

Influx of \[{{K}^{+}}\] ions of subsidiary cells into guard cells and efflux of \[{{H}^{+}}\] ions from guard cells lead to:

Transport of different types of solute substances takes place by:

In a somatic cell, there are 16 chromosomes. What will be the number of chromosomes in the pollen mother cell of the plant?

Function of funicle includes:

If the haploid number in a flowering plant is 14. What shall be the number of chromosomes integuments, antipodal cells, embryo, endosperm and nucellus respectively?

The rate of erythropoiesis is controlled by

Which of the following best represents the components that are necessary for photosynthesis to take place?

Term 'Leptome' is a synonym of

The success of birth control programmes in controlling population growth is dependent on:

A medical technician while observing a human blood smear under the microscope notes the presence of barrbody close to the nuclear membrane in the WBC. This indicates that person under investigation is [Kerala CET 2003]

A water molecule shows