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MCQOPTIONS
This section includes 2103 Mcqs, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
In respect of classification of algae, the members of Phaeophyceae are commonly called: |
| A. | red algae |
| B. | white algae |
| C. | green algae |
| D. | brown algae |
| Answer» E. | |
| 102. |
________ is the sequence of gradual changes that take place in the primitive organisms over millions of years, resulting in the formation of new species. |
| A. | Evolution |
| B. | Fossils |
| C. | Analogous organs |
| D. | Homologous organs |
| Answer» B. Fossils | |
| 103. |
Protein synthesis takes place on the surface of: |
| A. | Smooth Endoplasmic Reticulum |
| B. | Rough Endoplasmic Recticulum |
| C. | Nucleus |
| D. | Chloroplast |
| Answer» C. Nucleus | |
| 104. |
After menopause, production of which of the following hormones does not take place in women? |
| A. | Progesterone |
| B. | Testosterone |
| C. | Estrogen |
| D. | None of these |
| Answer» B. Testosterone | |
| 105. |
In humans, the timings and amount of hormones released are regulated by ______. |
| A. | a feedback mechanism |
| B. | the nervous system |
| C. | a stimulus |
| D. | walking |
| Answer» B. the nervous system | |
| 106. |
Embden-Meyerhof pathway represents |
| A. | Stepwise degradation of glucose to pyruvic acid |
| B. | Formation of glucose from non-carbohydrate |
| C. | Conversion of acetaldehyde to ethyl alcohol |
| D. | Beta oxidation |
| Answer» B. Formation of glucose from non-carbohydrate | |
| 107. |
Hydroponics is the? |
| A. | None of these |
| B. | Water portion of the biosphere |
| C. | Water content of organisms |
| D. | Loss of water by plants |
| Answer» B. Water portion of the biosphere | |
| 108. |
During respiration, the gaseous exchange takes place in: |
| A. | Lungs and alveoli |
| B. | Trachea and larynx |
| C. | Alveoli and throat |
| D. | Throat and lungs |
| Answer» B. Trachea and larynx | |
| 109. |
At which place, digestion of glucose starts |
| A. | Buccalcavity |
| B. | Stomach |
| C. | Small intestine |
| D. | None of these |
| Answer» E. | |
| 110. |
Plant hormone that help in the ripening of fruits is |
| A. | Auxin |
| B. | Cytokinin |
| C. | Gibberellins |
| D. | Ethylene |
| Answer» E. | |
| 111. |
Muscle cramp is caused by: |
| A. | water loss during sweating |
| B. | fatiguing muscles respiring aerobically |
| C. | increased blood circulation |
| D. | accumulation of lactic acid |
| Answer» E. | |
| 112. |
During heavy exercise, we get cramps in the legs due to accumulation of |
| A. | Carbon dioxide |
| B. | Lactic acid |
| C. | Alcohol |
| D. | Water |
| Answer» C. Alcohol | |
| 113. |
Diabetes is characterized by: |
| A. | Scanty urination |
| B. | Loss of appetite and fatigue |
| C. | No urination |
| D. | Frequent urination and unusual thirst |
| Answer» E. | |
| 114. |
______ is one of the hormones made by the thyroid gland, by using iodine. |
| A. | Cortistatin |
| B. | Thromboxane |
| C. | Thyroxin |
| D. | Cortisol |
| Answer» D. Cortisol | |
| 115. |
Nutrition in Amoeba is |
| A. | Holophtic |
| B. | Parasitic |
| C. | Holozoic |
| D. | Saprobiotic |
| Answer» D. Saprobiotic | |
| 116. |
How many somites are found in a 33 hrs old chick embryo- |
| A. | 10 |
| B. | 11 |
| C. | 12 |
| D. | 13 |
| Answer» B. 11 | |
| 117. |
In which one of the following physiological processes, excess water escapes in the form of droplets from a plant? |
| A. | Transpiration |
| B. | Guttation |
| C. | Secretion |
| D. | Excretion |
| Answer» C. Secretion | |
| 118. |
National Family Health Survey (NFHS) – 5 does not include - |
| A. | High blood-pressure |
| B. | Diabetes |
| C. | HIV Test |
| D. | Registration of death |
| Answer» D. Registration of death | |
| 119. |
Implantation is the process of ________. |
| A. | Attachment of zygote to the lining of a uterus |
| B. | The development of a child inside the mother’s body |
| C. | Nutrition from mother’s blood through the placenta |
| D. | Developing an embryo and its nourishment |
| Answer» B. The development of a child inside the mother’s body | |
| 120. |
In 'CT Scan', 'CT' means _____.A. Cathode-ray TubeB. Computerized TestingC. Computed TomographyD. Compartment Tracking |
| A. | B |
| B. | D |
| C. | C |
| D. | A |
| Answer» D. A | |
| 121. |
Match the following and choose the correct answer using codes given below:Column IColumn IIA. Gynostegiumi. MustardB. Gynobasic styleii. HibiscusC. Papilionaceous corollaiii. PisumD. Monadelphous conditioniv. CalotropisE. Tetradinamous conditionv. Ocimum |
| A. | A-v, B-iv, C-i, D-iii, E-ii |
| B. | A-iv, B-iii, C-ii, D-i, E-v |
| C. | A-ii, B-i, C-v, D-iv, E-iii |
| D. | A-iv, B-v, C-iii, D-ii, E-i |
| Answer» E. | |
| 122. |
Cobalamin is the scientific name of Vitamin ________. |
| A. | B1 |
| B. | C |
| C. | B12 |
| D. | E |
| Answer» D. E | |
| 123. |
In which part of the excretory system of the human body urine is it stored before passing urine? |
| A. | urinary bladder |
| B. | Ureter |
| C. | Bowman's Capsule |
| D. | Urethra |
| Answer» B. Ureter | |
| 124. |
Bacteriophage is a? |
| A. | Tail Bacteria |
| B. | Newly Formed Bacteria |
| C. | Bacteria that infect Viruses |
| D. | Virus that infect Bacteria |
| Answer» E. | |
| 125. |
Name the enzyme present in saliva which acts on carbohydrates. |
| A. | Cellulose |
| B. | Pepsin |
| C. | Trypsin |
| D. | Amylase |
| Answer» E. | |
| 126. |
Bone and cartilage are: |
| A. | Skeletal connective tissue |
| B. | Muscular tisssue |
| C. | Fluid connective tissue |
| D. | Connective proper tissue |
| Answer» B. Muscular tisssue | |
| 127. |
Deficiency of which of the following nutrients is the most common cause of goiters? |
| A. | Calcium |
| B. | Iodine |
| C. | Iron |
| D. | Vitamin C |
| Answer» C. Iron | |
| 128. |
Human blood is red in colour because of the presence of: |
| A. | Haemoglobin in red blood cells |
| B. | Haemoglobin in plasma |
| C. | Presence of haemocyanin in RBC |
| D. | Haemosiderin plasma |
| Answer» B. Haemoglobin in plasma | |
| 129. |
An assertion (A) and a reason (R) are given below.Assertion (A): Leaves are green in colour.Reason (R): Chlorophyll, a green pigment is present in leaves.Choose the correct option. |
| A. | Both A and R are true and R is the correct explanation of A |
| B. | Both A and R are true, but R is not the correct explanation of A |
| C. | A is true. but R is false |
| D. | A is false, but R is true |
| Answer» B. Both A and R are true, but R is not the correct explanation of A | |
| 130. |
Identify the correct statements:(a) Late blight of Potato disease was the causative factor for the 'Great Irish Famine' of the 19th century.(b) Brown spot disease of rice was responsible for the Bengal famine of the 1940s.(c) The inserted foreign gene in Bt-cotton offer resistance to bacterial diseases.(d) Crown gall is a viral disease.The correct statement is |
| A. | (a) |
| B. | (b) |
| C. | (c) |
| D. | (d) |
| Answer» B. (b) | |
| 131. |
A protein is synthesized in the endoplasmic reticulum bound ribosomes and it targets to the inner thylakoid space of chloroplast. How many double-layered membranes layers it has to pass to reach its destination? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 132. |
King Cobra is the only snake that makes its own nest. Why does it make its nest ? |
| A. | It is a snake-eater and the nest helps attract other snakes |
| B. | It is a viviparous snake and needs a nest to give birth to its offspring |
| C. | It is an oviparous snake and lays its eggs in the nest and guards the nest until they are hatched |
| D. | It is a large, cold blooded animal, and needs a nest to hibernate in the cold season |
| Answer» D. It is a large, cold blooded animal, and needs a nest to hibernate in the cold season | |
| 133. |
Clove, a spice, is obtained from which part of the plant? |
| A. | Fruit |
| B. | Stem |
| C. | Root |
| D. | Flower bud |
| E. | None of the above / More than one of the above |
| Answer» E. None of the above / More than one of the above | |
| 134. |
Allergy Screening Blood Test for human beings does not include_________. |
| A. | RAST |
| B. | ELISA |
| C. | IgE |
| D. | Hemoglobin A1C |
| Answer» E. | |
| 135. |
Plant cell wall is made up of: |
| A. | Cellulose |
| B. | Protein |
| C. | Chitin |
| D. | Keratin |
| Answer» B. Protein | |
| 136. |
Losing eye sight after consuming spurious liquor (bhejal) is due to its adulteration by : |
| A. | Methanol |
| B. | Acetaldehyde |
| C. | Drug |
| D. | Acidic moiety |
| Answer» B. Acetaldehyde | |
| 137. |
______ is a disease that generally develops in the lungs with symptoms such as fever, cough, chest pain and weight loss. |
| A. | Malaria |
| B. | Dengue |
| C. | Elephantiasis |
| D. | Tuberculosis |
| Answer» E. | |
| 138. |
In which of the following examples, heterospory is found: |
| A. | Lycopodium and Selaginella |
| B. | Selaginella and Equisetum |
| C. | Equisetum and Marsilea |
| D. | Selaginella and Marsilea |
| Answer» E. | |
| 139. |
Photosynthetic pigments in chloroplast are embedded in membrane of |
| A. | Thylakoids |
| B. | Photoglobin |
| C. | Matrix |
| D. | Envelope of Chloroplast |
| Answer» B. Photoglobin | |
| 140. |
Plants in the group _______ are commonly called algae. |
| A. | Bryophyta |
| B. | Pteridophyte |
| C. | Gymnosperm |
| D. | Thallophyta |
| Answer» E. | |
| 141. |
Biological names are generally derived from which language? |
| A. | French |
| B. | Latin |
| C. | Mexican |
| D. | German |
| Answer» C. Mexican | |
| 142. |
From where do plants get nitrogen? |
| A. | Air |
| B. | Rain |
| C. | Soil |
| D. | Bedrock |
| Answer» D. Bedrock | |
| 143. |
Mammalian kidneys serve to excrete |
| A. | excess salts, urea and excess water |
| B. | excess salts, water and amino acids |
| C. | excess water, urea and amino acids |
| D. | none of these |
| Answer» B. excess salts, water and amino acids | |
| 144. |
An Assertion (A) and a Reason (R) are given below.Assertion (A) : Earthworms are not good for agriculture.Reason (R) : Earthworms break down the soil into fine particles and make it soft.Choose the correct option. |
| A. | A is true but R is false. |
| B. | A is false but R is true. |
| C. | Both A and R are true and R is the correct explanation of A. |
| D. | Both A and R are false |
| Answer» C. Both A and R are true and R is the correct explanation of A. | |
| 145. |
Excess of amino acids are broken down to form urea in |
| A. | Kidney |
| B. | Liver |
| C. | Spleen |
| D. | Rectum |
| Answer» C. Spleen | |
| 146. |
Oral Rehydration Solution (ORS) is used for treating: |
| A. | Plague |
| B. | Typhoid |
| C. | Diarrhoea |
| D. | Jaundice |
| Answer» D. Jaundice | |
| 147. |
'Cytology' is the branch of biology which deals with the study of: |
| A. | cells |
| B. | brain |
| C. | hair |
| D. | blood |
| Answer» B. brain | |
| 148. |
In a Punnett Square with the cross AaBb × AaBb, how many Aabb genotypes would be created? |
| A. | 1 |
| B. | 8 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 149. |
Potato is an example of ______. |
| A. | Tuber |
| B. | Bulb |
| C. | Corms |
| D. | Rhizome |
| Answer» B. Bulb | |
| 150. |
Moss and ferns reproduce by |
| A. | Budding |
| B. | Fragmentation |
| C. | Spore formation |
| D. | Cuttings |
| Answer» D. Cuttings | |