MCQOPTIONS
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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 11651. |
Read the assertion and reason carefully: Assertion : The ovary forms fruit after fertilization. Reason : The ovary forms parthenocarpic fruits without fertilization. |
| 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 | |
| 11652. |
Assertion : Holandric genes are found on Y chromosome. Reason : Inheritance of Holandric genes are always from father to son. [AIIMS 1996] |
| 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 | |
| 11653. |
Which one is a non-symbiotic nitrogen fixer [Pb. PMT 1998] |
| A. | Rhizobium |
| B. | Oscillatoria |
| C. | Nostoc |
| D. | Lactobacillus |
| Answer» B. Oscillatoria | |
| 11654. |
Assertion : Non-striated muscles are said to be voluntary in nature. Reason : Non-striated muscles can be moved according to will. |
| 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 | |
| 11655. |
Read the assertion and reason carefully: Assertion : Cuticle is also present in lower epidermal region of the leaf. Reason : The lower epidermis contains a large number of stomata. |
| 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 | |
| 11656. |
Temperate forests occur in India in [JIPMER 1983] |
| A. | Indo-Gangetic plains |
| B. | Himalayas |
| C. | Eastern India |
| D. | Southern Peninsula |
| Answer» C. Eastern India | |
| 11657. |
Assertion : Spirogyra is slippery in touch. Reason : Spirogyra consists a gelatinous sheath. |
| 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 | |
| 11658. |
In which type of plants PEP is th\[C{{O}_{2}}\]e receptor [CPMT 1998] |
| A. | \[{{C}_{3}}\] |
| B. | \[{{C}_{4}}\] |
| C. | Both [a] and [b] |
| D. | None of these |
| Answer» C. Both [a] and [b] | |
| 11659. |
Bat can travel with [AFMC 1997] |
| A. | Eyes open |
| B. | Eyes plugged and ears open |
| C. | Ears plugged and eyes open |
| D. | Ears closed and eyes plugged |
| Answer» C. Ears plugged and eyes open | |
| 11660. |
Which of the following communities is more vulnerable to invasion by outsides animals and plants [CBSE PMT 1998] |
| A. | Mangroves |
| B. | Tropical evergreen forests |
| C. | Temperate forests |
| D. | Oceanic island communities |
| Answer» C. Temperate forests | |
| 11661. |
Which one of the following characters is not typical of the class Mammalia [CBSE PMT 2005] |
| A. | Thecodont dentition |
| B. | Alveolar lungs |
| C. | Ten pairs of cranial nerves |
| D. | Seven cervical vertebrae |
| Answer» D. Seven cervical vertebrae | |
| 11662. |
Lathyrism is caused by [CPMT 1995] |
| A. | Dal |
| B. | Moth dal |
| C. | Khesari dal |
| D. | Glycine |
| Answer» D. Glycine | |
| 11663. |
Which was first photosynthetic organism [BVP 2004] |
| A. | Green algae |
| B. | Red algae |
| C. | Cyanobacteria |
| D. | None of these |
| Answer» D. None of these | |
| 11664. |
Read the assertion and reason carefully: Assertion : Chasmogamous flowers require pollinating agents. Reason : Cleistogamous flowers do not expose their sex organs. |
| 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 | |
| 11665. |
Cardamoms or Cardamons are ripe and dried fruits of [BHU 1987] |
| A. | Elettaria cardamomum |
| B. | Cinnamomum zeylenicum |
| C. | Eugenia caryophyllata |
| D. | Zingiber officinale |
| Answer» B. Cinnamomum zeylenicum | |
| 11666. |
Which of the following shows the absence of cytoplasmic streaming |
| A. | Eukaryotic cell |
| B. | Prokaryotic cell |
| C. | Both (a) and (b) |
| D. | None of the above |
| Answer» C. Both (a) and (b) | |
| 11667. |
Which of the following is/are grouped under phanerogams [BHU 2004] |
| A. | Angiosperms |
| B. | Gymnosperms |
| C. | Pteridophytes |
| D. | Both (a) and (b) |
| Answer» E. | |
| 11668. |
Yolk of egg in the vertebrates is formed in |
| A. | Ovum |
| B. | Lungs |
| C. | Liver |
| D. | Kidney |
| Answer» D. Kidney | |
| 11669. |
Fumerase enzyme belongs to which class |
| A. | Oxidase |
| B. | Carboxylase |
| C. | Transferase |
| D. | Lyases |
| Answer» E. | |
| 11670. |
Cleavage was first observed by |
| A. | Swammerdam |
| B. | Spallanzani |
| C. | F.R. Lillie |
| D. | Leeuwenhoek |
| Answer» B. Spallanzani | |
| 11671. |
Egg of rabbit and man are [BHU 1982, 85; CPMT 1973; CBSE PMT 1993; RPMT 1999; Pb. PMT 1999] |
| A. | Microlecithal |
| B. | Megalecithal |
| C. | Telolecithal |
| D. | Isolecithal |
| Answer» B. Megalecithal | |
| 11672. |
The distance between two genes in a chromosome is measured in cross-over units which represent [BHU 1982] |
| A. | Ratio of crossing over between them |
| B. | Percentage of crossing over between them |
| C. | Number of crossing over between them |
| D. | None of these |
| Answer» C. Number of crossing over between them | |
| 11673. |
Separation of the two chromatids of a chromosome takes place in mitosis during [CPMT 1975, 81; DPMT 1993] |
| A. | Prophase |
| B. | Anaphase |
| C. | Metaphase |
| D. | Telophase |
| Answer» C. Metaphase | |
| 11674. |
Streptococcus is employed in the manufacturing of [BVP 2004] |
| A. | Wine |
| B. | Bread |
| C. | Cheese |
| D. | All of these |
| Answer» D. All of these | |
| 11675. |
The genes are in the form of [CPMT 1998] |
| A. | Sequence of nucleotide |
| B. | Base pair |
| C. | Proportion of base pair |
| D. | None of these |
| Answer» B. Base pair | |
| 11676. |
Cartilaginous fishes are characterised by the presence of |
| A. | Terminal mouth |
| B. | Ventral mouth |
| C. | A homocercal tail |
| D. | A heterocercal tail |
| Answer» C. A homocercal tail | |
| 11677. |
A well-known bird sanctuary of our country is situated at [MP PMT 1996] |
| A. | Kaziranga |
| B. | Bandipur |
| C. | Palamu |
| D. | Bharatpur |
| Answer» E. | |
| 11678. |
Which one of the following is a renewable source of energy [MP PMT 1995] |
| A. | Petroleum |
| B. | Coal |
| C. | Nuclear fuel |
| D. | Trees |
| Answer» E. | |
| 11679. |
Assertion : Bacterial photosynthesis occurs by utilizing wavelength longer than 700 nm. Reason : Here reaction centre is B-890. [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» C. If the assertion is true but the reason is false | |
| 11680. |
The theory of ageing holds that ageing is due to [MP PMT 2001] |
| A. | Random mutation in D.N.A. of somatic cells |
| B. | Increased cross-linkage of collagen & other proteins |
| C. | Cumulative result of damage to tissues by free radicals |
| D. | All of these |
| Answer» E. | |
| 11681. |
Out of the following, reptiles and birds differ in only one, which is it |
| A. | The skin possesses scales |
| B. | They lay eggs |
| C. | Capacity of laying hard shelled eggs |
| D. | There is regulation of the body temperature |
| Answer» E. | |
| 11682. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Cattle suffering from Rinderpest disease should be isolated. Reason : Rinderpest is caused by bacterium. |
| 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 | |
| 11683. |
Which one of the following is not a fibrillar protein [Kerala CET 2003] |
| A. | Elastin |
| B. | Collagen |
| C. | Myosin |
| D. | Albumin |
| Answer» E. | |
| 11684. |
Which of the following is a non-renewable energy source [HP PMT 2005] |
| A. | Hydropower |
| B. | Tidal power |
| C. | Geothermal energy |
| D. | Nuclear energy |
| Answer» E. | |
| 11685. |
Indian-corn is a native of |
| A. | North India |
| B. | Tropical South America |
| C. | Africa and India |
| D. | South Europe |
| Answer» C. Africa and India | |
| 11686. |
Streptococcus thermophilus and Lactobacillus bulgaricus are being used for the production of [MP PMT 1997] |
| A. | Cheese |
| B. | Yoghurt |
| C. | Tempeh |
| D. | Miso |
| Answer» C. Tempeh | |
| 11687. |
Currency of cell is [MHCET 2000] |
| A. | Mitochondria |
| B. | Chloroplast |
| C. | ATP |
| D. | Glucose |
| Answer» D. Glucose | |
| 11688. |
Which of the following is the environmental theory of ageing |
| A. | The radiation affects the gene mutation resulting in the DNA transcription in somatic cells. |
| B. | The rate of ageing and age is controlled by the ageing gene |
| C. | Environmental and hereditary factors control the ageing |
| D. | Metabolic rate affects the ageing |
| Answer» B. The rate of ageing and age is controlled by the ageing gene | |
| 11689. |
Assertion : All Pila are ammonotelic. Reason : Pila excretes uric acid. |
| 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 | |
| 11690. |
Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Self medication may lead to drug addiction. Reason : Drug addicts face social stigma. |
| 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. | |
| 11691. |
Puccinia graminis tritici is the cause of |
| A. | Smut of wheat |
| B. | Black stem rust of wheat |
| C. | Loose smut of wheat |
| D. | White rust of wheat |
| Answer» C. Loose smut of wheat | |
| 11692. |
In which of the following algal classes the starch and oil are present [CPMT 1998] |
| A. | Chlorophyceae |
| B. | Phaeophyceae |
| C. | Rhodophyceae |
| D. | Xanthophyceae |
| Answer» E. | |
| 11693. |
Assertion : More dicot species are known than that of monocot species. Reason : Two cotyledons are present in the dicot plants. |
| 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 | |
| 11694. |
The homologous chromosomes follow the process of synapsis in the stage or Pairing of homologous chromosome takes place in [DPMT 1990, 91; RPMT 1997; MP PMT 1999; BHU 2003; Haryana PMT 2005] |
| A. | Leptotene |
| B. | Zygotene |
| C. | Diplotene |
| D. | Pachytene |
| Answer» C. Diplotene | |
| 11695. |
What is the main problem caused by the use of pesticides [AIEEE 2004] |
| A. | Their residues persists in water and other components of the environment |
| B. | Mosquitoes have become resistant to DDT |
| C. | They kill silkworm |
| D. | They deform the gills of some fishes |
| Answer» B. Mosquitoes have become resistant to DDT | |
| 11696. |
Leptothrix is a |
| A. | Nitrifying bacteria |
| B. | Sulphur bacteria |
| C. | Iron bacteria |
| D. | Hydrogen bacteria |
| Answer» D. Hydrogen bacteria | |
| 11697. |
The enzyme which catalyzes the photosynthetic\[{{C}_{4}}\]cycle is [CPMT 1990; BHU 1991] |
| A. | RuDP carboxylase |
| B. | PEP carboxylase |
| C. | Carbonic anhydrase |
| D. | None of these |
| Answer» C. Carbonic anhydrase | |
| 11698. |
Normal cellular activities, such as protein synthesis occur primarily during [Pune CET 1998] |
| A. | Interphase |
| B. | Anaphase |
| C. | Metaphase |
| D. | Prophase |
| Answer» B. Anaphase | |
| 11699. |
Four chromatids and two centromeres which are homologous occurs in [CPMT 1995] |
| A. | Zygotene |
| B. | Diplotene |
| C. | Diakinesis |
| D. | Pachytene |
| Answer» B. Diplotene | |
| 11700. |
Carbohydrates, the most abundant biomolecules on earth, are produced by [CBSE PMT 2005] |
| A. | All bacteria, fungi and algae |
| B. | Fungi, algae and green plant cells |
| C. | Some bacteria, algae and green plant cells |
| D. | Viruses, fungi and bacteria |
| Answer» D. Viruses, fungi and bacteria | |