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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.
| 1701. |
In an undamaged blood vessel, conversion of Prothrombin to Thrombin is prevented by |
| A. | Fibrinogen |
| B. | Calcium (Ca) |
| C. | Factor VI |
| D. | Heparin |
| Answer» E. | |
| 1702. |
Bacteriophage is: |
| A. | a bacteria which infect virus |
| B. | a virus which infect bacteria |
| C. | a bacteria which infect algae |
| D. | none of these |
| Answer» C. a bacteria which infect algae | |
| 1703. |
AIDS cannot be transmitted by ________. |
| A. | Sexual contact |
| B. | Hugs |
| C. | Breast feeding |
| D. | Blood transfusion |
| Answer» C. Breast feeding | |
| 1704. |
Expand DNA. |
| A. | Deoxyribonucleic acid |
| B. | Deoxynucleic acid |
| C. | Deoxyribose |
| D. | Dehydroxyribonucleic acid |
| Answer» B. Deoxynucleic acid | |
| 1705. |
New species may be formed if:(A) DNA undergoes a significant change in the germ cell.(B) Chromosomes number change in the gamete.(C) There is no change in genetic materials |
| A. | Only (A) |
| B. | (A) and (B) |
| C. | (A) and (C) |
| D. | (A), (B) and (C) |
| Answer» C. (A) and (C) | |
| 1706. |
As per the code of the nomenclature, which one of the following is the correct way of writing a biological name? |
| A. | Amoeba Proteus |
| B. | Amoeba proteus |
| C. | amoeba proteus |
| D. | amoeba Proteus |
| Answer» C. amoeba proteus | |
| 1707. |
Alveoli are related to which of the following system of human body? |
| A. | Circulatory system |
| B. | Excretory system |
| C. | Reproductive system |
| D. | Respiratory system |
| Answer» E. | |
| 1708. |
Pinus is a |
| A. | tree |
| B. | shrub |
| C. | herb |
| D. | none of these |
| Answer» B. shrub | |
| 1709. |
Cholesterol is a ________ |
| A. | Lipid (Sterol) |
| B. | Carbohydrate |
| C. | Protein |
| D. | Vitamin |
| Answer» B. Carbohydrate | |
| 1710. |
A person with blood group AB ________.A. Can donate blood to persons with blood group A, B and O.B. Is called universal blood donor.C. Can receive blood from any group.D. Is neither a universal recipient nor a donor. |
| A. | B |
| B. | C |
| C. | D |
| D. | A |
| Answer» C. D | |
| 1711. |
Approximately how many cells are there in a human body? |
| A. | 37 lakh |
| B. | 37 billion |
| C. | 37 trillion |
| D. | 37 million |
| Answer» D. 37 million | |
| 1712. |
A medical procedure, during which a small sample of tissue is removed from a part of the body, is ________. |
| A. | MRI |
| B. | CT Scan |
| C. | Biopsy |
| D. | All options are correct. |
| Answer» D. All options are correct. | |
| 1713. |
Husk of the coconut is made of ______ tissues. |
| A. | collenchyma |
| B. | xylem and phloem |
| C. | sclereids |
| D. | sclerenchyma |
| Answer» E. | |
| 1714. |
"Henle's loop" is found in |
| A. | lungs |
| B. | heart |
| C. | liver |
| D. | kidneys |
| Answer» E. | |
| 1715. |
Insulin is |
| A. | Fat |
| B. | Vitamin |
| C. | Carbohydrate |
| D. | Protein |
| E. | None of the above/More than one of the above |
| Answer» E. None of the above/More than one of the above | |
| 1716. |
Acromian process is the part of |
| A. | Clavicle bone |
| B. | Humerus bone |
| C. | Scapulla bone |
| D. | Pelvic girdle |
| Answer» D. Pelvic girdle | |
| 1717. |
Carbon and energy requirements of autotrophic organisms are fulfilled by: |
| A. | Photosynthesis |
| B. | Gluconeogenesis |
| C. | Glycogenesis |
| D. | External sources |
| Answer» B. Gluconeogenesis | |
| 1718. |
Arthropod means: |
| A. | Long tentacles |
| B. | Jointed legs |
| C. | Jointed body |
| D. | None of the above |
| Answer» C. Jointed body | |
| 1719. |
Longest bone of human body is ______. |
| A. | Humerus |
| B. | Stapes |
| C. | Femur |
| D. | Radio-ulna |
| Answer» D. Radio-ulna | |
| 1720. |
Normal range of breathing rate per minute in an average adult person at rest is |
| A. | 9 - 12 |
| B. | 12 - 20 |
| C. | 21 - 24 |
| D. | 30 - 33 |
| Answer» C. 21 - 24 | |
| 1721. |
Lycopodium exhibits |
| A. | Heterospory |
| B. | Homospory |
| C. | Both heterospory and Homospory |
| D. | None of these |
| Answer» C. Both heterospory and Homospory | |
| 1722. |
Onion is an example of bulb, which is a modified ______. |
| A. | Stem |
| B. | Root |
| C. | Leaf |
| D. | Flower |
| Answer» B. Root | |
| 1723. |
Lichens are formed as the symbiotic association between which organisms? |
| A. | Bacteria-Algae |
| B. | Algae-Fungi |
| C. | Algae-Protozoa |
| D. | Bacteria-Fungi |
| Answer» C. Algae-Protozoa | |
| 1724. |
Peripatus is a connecting link between |
| A. | Annelida and mollusca |
| B. | Mollusca and echinodermata |
| C. | Annelida and Arthropoda |
| D. | Arthropoda & Mollusca |
| Answer» D. Arthropoda & Mollusca | |
| 1725. |
ln 2013, the first human liver was grown from stem cells in - |
| A. | Japan |
| B. | USA |
| C. | Germany |
| D. | France |
| Answer» B. USA | |
| 1726. |
Endosperm in coconut is |
| A. | cellular |
| B. | nuclear |
| C. | both cellular and nuclear |
| D. | neither cellular nor nuclear |
| Answer» D. neither cellular nor nuclear | |
| 1727. |
Name the longest cell in human. |
| A. | Nerve cell |
| B. | Muscle cell |
| C. | Hair cell |
| D. | Mycoplasma |
| E. | Protoplasm |
| Answer» B. Muscle cell | |
| 1728. |
Mastitis in animals is due to |
| A. | Virus and Worms |
| B. | Worms |
| C. | Bacteria and Virus |
| D. | Fungi and dry hand milking |
| Answer» D. Fungi and dry hand milking | |
| 1729. |
In the process of respiration, the component of air used is? |
| A. | Inert gases |
| B. | Carbon dioxide |
| C. | oxygen |
| D. | Nitrogen |
| Answer» D. Nitrogen | |
| 1730. |
Both, haemoglobin and myoglobin require _______ for formation. |
| A. | Vitamin B12 |
| B. | Vitamin A |
| C. | Iron |
| D. | Calcium |
| Answer» D. Calcium | |
| 1731. |
Plants bend towards light due to the diffusion of the ________ hormone on the other side of the shoot. |
| A. | Auxin |
| B. | Cytokinin |
| C. | Abscisic acid |
| D. | Gibberellin |
| Answer» B. Cytokinin | |
| 1732. |
A protruding part of the throat that is responsible for growing voice box in boys is called? |
| A. | Larynx |
| B. | Testosterone |
| C. | Pharynx |
| D. | Adam’s Apple |
| Answer» E. | |
| 1733. |
Lichens are symbiotic associations, which are mutually useful between associations, algae, and _______. |
| A. | Protozoa |
| B. | Fungi |
| C. | Viruses |
| D. | Bacteria |
| Answer» C. Viruses | |
| 1734. |
Protein-calorie malnutrition results in |
| A. | Marasmus |
| B. | Rickets |
| C. | Beri-Beri |
| D. | Valk-Skin |
| Answer» B. Rickets | |
| 1735. |
'Quartan malaria' is caused by |
| A. | Plasmodium vivax |
| B. | Plasmodium malariae |
| C. | Plasmodium ovale |
| D. | Plasmodium falciparum |
| Answer» C. Plasmodium ovale | |
| 1736. |
_________ are composed of long, fibrous proteins as filaments that slide past each other when a muscle contract or relaxes. |
| A. | Myofibril |
| B. | Sarcomeres |
| C. | Cross bridges |
| D. | Z band |
| Answer» C. Cross bridges | |
| 1737. |
___________ is caused due to deficiency of Iron in the body. |
| A. | Night blindness |
| B. | High blood pressure |
| C. | Anaemia |
| D. | Diabetes |
| Answer» D. Diabetes | |
| 1738. |
Jellyfish are an example of which type of phylum? |
| A. | Phylum - Protozoa |
| B. | Phylum - Cnidaria |
| C. | Phylum - Porifera |
| D. | Phylum - Ctenophora |
| Answer» C. Phylum - Porifera | |
| 1739. |
Match the structures given in column (A) with the functions given in column (B).Column – AColumn – BI. Stomata1. Absorption of waterII. Xylem2. TranspirationIII. Root hairs3. Transport of foodIV. Phloem4. Transport of water |
| A. | I-1, II-2, III-3, IV-4 |
| B. | I-2, II-4, III-1, IV-3 |
| C. | I-1, II-2, III-4, IV-3 |
| D. | I-1, II-3, III-2, IV-4 |
| Answer» C. I-1, II-2, III-4, IV-3 | |
| 1740. |
Kidney stones are mainly formed by which of the following compound? |
| A. | Calcium Silicate |
| B. | Calcium Oxalate |
| C. | Calcium Chloride |
| D. | Calcium Oxide |
| Answer» C. Calcium Chloride | |
| 1741. |
In plants, which enzyme is found in largest quantity? |
| A. | β galactosidase |
| B. | RuBP carboxylase |
| C. | Enterokinase |
| D. | Heterokinase |
| Answer» C. Enterokinase | |
| 1742. |
Petroleum is found in ________ |
| A. | Marshy land |
| B. | Igneous rocks |
| C. | Sedimentary rocks |
| D. | Metamorphic rocks |
| E. | None of these |
| Answer» D. Metamorphic rocks | |
| 1743. |
During asexual reproduction, the formation of Gemmules is seen in which of the following organisms ? |
| A. | Protozoa |
| B. | Sponges |
| C. | Earthworms |
| D. | Bacteria |
| Answer» C. Earthworms | |
| 1744. |
________carry oxygen-rich blood from the heart to all parts of the body. |
| A. | Skeletal Muscle |
| B. | Veins |
| C. | Arteries |
| D. | Plasma |
| Answer» D. Plasma | |
| 1745. |
Halophytes grow well in |
| A. | Acidic soils |
| B. | Cold soils |
| C. | Soils containing calcium |
| D. | Saline soils |
| Answer» E. | |
| 1746. |
Percentage of O2 present in inhaled air in human is about ________. |
| A. | 21% |
| B. | 78% |
| C. | 41% |
| D. | 2% |
| Answer» B. 78% | |
| 1747. |
Deficiency of vitamin D causes- |
| A. | Scurvy |
| B. | Beriberi |
| C. | Rickets |
| D. | Kwashiorkor |
| Answer» D. Kwashiorkor | |
| 1748. |
Penicillin antibiotic is obtained from |
| A. | fungi |
| B. | algae |
| C. | bacteria |
| D. | blue-green algae |
| Answer» B. algae | |
| 1749. |
In which stage does centromere divide into two? |
| A. | Metaphase I |
| B. | Prophase I |
| C. | Metaphase II |
| D. | Anaphase II |
| Answer» E. | |
| 1750. |
An antibiotic is not useful against a virus whereas a vaccine is. Which one of the following is the most appropriate reason for this ? |
| A. | An antibiotic can break RNA only, whereas virus has DNA. |
| B. | An antibiotic is a carbohydrate in its chemical nature, whereas a vaccine is a protein which works well to kill a virus. |
| C. | Only a vaccine can break the genetic material of a virus. |
| D. | A virus does not use biochemical pathways which can be blocked by an antibiotic. But a vaccine can boost an immune system to fight the virus. |
| Answer» E. | |