

MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
101. |
Which type of Stem modification is seen in banana ? |
A. | Rhizome |
B. | Stem tuber |
C. | Corn |
D. | Bulb |
Answer» B. Stem tuber | |
102. |
In plant body, the water and minerals are transported by _______ |
A. | Bast |
B. | Collenchyma |
C. | Parenchyma |
D. | Xylum |
Answer» E. | |
103. |
The process in which energy stored in carbohydrates is released |
A. | Photosynthesis |
B. | Respiration |
C. | Reproduction |
D. | Excretion |
Answer» C. Reproduction | |
104. |
Which one of the following vitamins is known as the anti sterile factor ? |
A. | Ascorbic acid |
B. | Riboflavin |
C. | Niacin |
D. | Retinol |
Answer» C. Niacin | |
105. |
Mycolog is the branch of botany in which we study about |
A. | Algae |
B. | Fungi |
C. | Bacteria |
D. | Virus |
Answer» C. Bacteria | |
106. |
Lathyrism is caused by excess consumption of....... |
A. | Khesari dal |
B. | Mustard oil |
C. | Mushrooms |
D. | Polished rice |
Answer» B. Mustard oil | |
107. |
In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as _________ |
A. | Dichogamy |
B. | Herpogamy |
C. | Haterogamy monogamy |
D. | None of these |
Answer» B. Herpogamy | |
108. |
Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in |
A. | Recombinant dna technology |
B. | Monoclonal antibody production |
C. | Stemcell culture |
D. | Dna fingerprinting |
Answer» E. | |
109. |
Sleeping sickness in main is caused by the organism |
A. | Plasmodium |
B. | Entamoeba |
C. | Giardia |
D. | Trypanosoma |
Answer» E. | |
110. |
Main function of white blood corpuscles is _______ |
A. | Transport of carbon dioxide |
B. | Transport of oxygen |
C. | To produce immune system of body |
D. | None of these |
Answer» D. None of these | |
111. |
Light compensation zone refers to |
A. | Where light is available in plenty |
B. | Where light is maximum |
C. | Beyond which light does not penetrate |
D. | Where all light is used |
Answer» D. Where all light is used | |
112. |
A true species in mauritius failed to reproduce because of the extinction of a fruit eating bird. Which one of the following was that bird? |
A. | Dove |
B. | Dodo |
C. | Condor |
D. | Skua |
Answer» C. Condor | |
113. |
The brain is covered by |
A. | Meninges |
B. | Skin |
C. | Bone |
D. | All the above |
Answer» E. | |
114. |
Palaeobotany is the branch of botany is which we study about |
A. | Animal fosills |
B. | Plant fossils |
C. | Seed of plant |
D. | Flower |
Answer» C. Seed of plant | |
115. |
Plants growing in sunlight are called |
A. | Sciophytes |
B. | Xerophytes |
C. | Heliophytes |
D. | Hydrophytes |
Answer» D. Hydrophytes | |
116. |
Tissue in which cells have lost the capacity of cell division |
A. | Mesristmatic tissue |
B. | Permanent tissue |
C. | Both a and b |
D. | None of these |
Answer» C. Both a and b | |
117. |
Man has _____ pairs of salivary glands |
A. | 3 |
B. | 4 |
C. | 6 |
D. | 8 |
Answer» B. 4 | |
118. |
Branch of biology in which we study about cultivation of flowering plant |
A. | Phenology |
B. | Floriculture |
C. | Agronomy |
D. | Botany |
Answer» C. Agronomy | |
119. |
Who is known as father of medicine |
A. | Aristotle |
B. | Theophrastus |
C. | Hippocrates |
D. | Edward jenner |
Answer» D. Edward jenner | |
120. |
Damage to hearing is caused by sounds which exceed |
A. | 70 decibels |
B. | 80 decibels |
C. | 100 decibels |
D. | 120 decibels |
Answer» E. | |
121. |
Blood is |
A. | Alkaline |
B. | Neutral |
C. | Like a buffer |
D. | Acidic |
Answer» B. Neutral | |
122. |
In case of a heart attack, a hormone is injected as an emergency measure, Which one is it? |
A. | Thyroxine |
B. | Adrenaline |
C. | Heparin |
D. | Insulin |
Answer» C. Heparin | |
123. |
The biogenetic law was proposed by |
A. | Alfred russel wallace |
B. | Charles darwin |
C. | Ernst von haeckel |
D. | Lamarck |
Answer» D. Lamarck | |
124. |
There are approximately how many muscles in Human body ? |
A. | 206 |
B. | 310 |
C. | 554 |
D. | 700 |
Answer» E. | |
125. |
In exo-biology we study about ________ |
A. | External structure of living beings |
B. | Life present on the earth |
C. | Life present in the other layer of earth atmosphere |
D. | Life found in space and on other satellite |
Answer» E. | |
126. |
Lamarck's theory of inheritance of acquired characters was challenged by |
A. | August weismann |
B. | Hugo de vries |
C. | Herbert spencer |
D. | Carl linnaeus |
Answer» D. Carl linnaeus | |
127. |
The energy released by 1 gram of glucose is |
A. | 6 kcal |
B. | 4 kcal |
C. | 5 kcal |
D. | 3kcal |
Answer» C. 5 kcal | |
128. |
Which of the following is the largest phyllum in the animal kingdom in respect of number of species |
A. | Annalida |
B. | Platyhelminthes |
C. | Chordata |
D. | Arthropoda |
Answer» E. | |
129. |
The rate of heartbeat is accelerated by the harmone |
A. | Adrenaline |
B. | Acetylcholine |
C. | Thyroxine |
D. | Pituitrin |
Answer» B. Acetylcholine | |
130. |
Oath taken by medical graduates is given by |
A. | Aristotle |
B. | Theophrastus |
C. | Hippocrates |
D. | Darwin |
Answer» D. Darwin | |
131. |
The outer membrane that covers the brain is |
A. | Myelin sheath |
B. | Dura mater |
C. | Arachnoid membrane |
D. | Pia mater |
Answer» C. Arachnoid membrane | |
132. |
Monocarpic plants are those that produce fruits ...............during the life of the plant |
A. | Once |
B. | Thrice |
C. | Many times |
D. | Twice |
Answer» B. Thrice | |
133. |
Tikka disease is related with the crop: |
A. | Musturd |
B. | Paddy |
C. | Ground nut |
D. | All of these |
Answer» D. All of these | |
134. |
The leaves used as wrappers for bides are obtained from which one of the following ? |
A. | Shikakai |
B. | Rudraksha |
C. | Tendu |
D. | Lemon grass |
Answer» D. Lemon grass | |
135. |
Dicotyledonous weeds are destroyed by a chemical called |
A. | Indole - acetic acid |
B. | 2- 4 dichlorophenoxy acetic acid |
C. | Abscisic acid |
D. | Naphthalene acetic acid |
Answer» C. Abscisic acid | |
136. |
The grouping of blood is based on substances called |
A. | Antibodies |
B. | Antigens |
C. | Antitoxin |
D. | Enzymes |
Answer» C. Antitoxin | |
137. |
Yellow color of urine is due to presence of |
A. | Bile juice |
B. | Urochrome |
C. | Lymph |
D. | Cholesterol |
Answer» C. Lymph | |
138. |
Name the blood cells in which nucleus is absent |
A. | Lymphocytes |
B. | Blood platelets |
C. | Monocytes |
D. | Eosinophils |
Answer» C. Monocytes | |
139. |
Branch of agriculture concerned with the production of crops |
A. | Agrotology |
B. | Agronomy |
C. | Agrostology |
D. | Anthropology |
Answer» C. Agrostology | |
140. |
The sex of a newborn baby is determined by the chromosome inherited from |
A. | The father |
B. | The mother |
C. | The father's father |
D. | Both a & b |
Answer» B. The mother | |
141. |
The phenomenon of summer sleep by animals is called |
A. | Hibernation |
B. | Aestivation |
C. | Laziness |
D. | Lethargy |
Answer» C. Laziness | |
142. |
Function of Leghaemoglobin in nitrogen fixation _____ |
A. | Absorption of oxygen |
B. | Nutrion of bacteria |
C. | Absorption of light |
D. | All |
Answer» B. Nutrion of bacteria | |
143. |
Cutaneous respiration occurs in |
A. | Cockroach |
B. | Salamander |
C. | Crab |
D. | Parrot |
Answer» C. Crab | |
144. |
Botany is also known as |
A. | Phytology |
B. | Phycology |
C. | Pedology |
D. | Plantophyta |
Answer» B. Phycology | |
145. |
Silviculture is the branch of botany in which we study about |
A. | Culture of algae |
B. | Development of forest |
C. | Culture of fungi |
D. | Silciphida plant |
Answer» C. Culture of fungi | |
146. |
The total number of pairs of Peripheral nerves in man are |
A. | 41 |
B. | 42 |
C. | 43 |
D. | 44 |
Answer» D. 44 | |
147. |
Unlike Mitosis, Meiosis results in the formation of |
A. | 2n daughter cells |
B. | Haploid cells |
C. | Body cells |
D. | Diploid cells |
Answer» C. Body cells | |
148. |
The basic unit of the nervous system is the |
A. | Lymphs |
B. | Nephrons |
C. | Nerves |
D. | Neurons |
Answer» E. | |
149. |
Agrostology is the study of |
A. | Seed of oil |
B. | Crop |
C. | Grass |
D. | Fruits |
Answer» D. Fruits | |
150. |
Spermology is the study of |
A. | Seed |
B. | Leaf |
C. | Fruit |
D. | Pollen grain |
Answer» B. Leaf | |