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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.
| 9701. |
Metanephros are present in |
| A. | Birds |
| B. | Reptilia |
| C. | Mammals |
| D. | All of the above |
| Answer» E. | |
| 9702. |
Telocentric chromosome differs from acrocentric chromosome in that [AIIMS 1985] |
| A. | The former has a subterminal centromere whereas the later has a centrally located centrosome |
| B. | The centromere in the former is terminal and in the later is subterminal |
| C. | The former has a terminal centromere and the later has a medially located centromere |
| D. | None of the above |
| Answer» C. The former has a terminal centromere and the later has a medially located centromere | |
| 9703. |
Species is [AFMC 2002] |
| A. | Population of individuals having same genotypes and phenotypes |
| B. | A group of individuals inhabiting a geographical area |
| C. | A group of interbreeding populations |
| D. | Population of one type |
| Answer» D. Population of one type | |
| 9704. |
The embryonic axis of the seed is the [CMC Vellore 1994] |
| A. | Plumule |
| B. | Tigellum |
| C. | Radicle |
| D. | Coleoptile |
| Answer» E. | |
| 9705. |
Which of the following generally used for induced mutagenesis in crop plants [CBSE PMT 2005] |
| A. | Alpha particle |
| B. | X-rays |
| C. | UV (260 nm) |
| D. | Gamma rays (from cobalt 60) |
| Answer» E. | |
| 9706. |
Sweat, salivary and pancreatic ducts are lined by |
| A. | Stratified squamous epithelium |
| B. | Stratified cuboidal epithelium |
| C. | Stratified columnar epithelium |
| D. | Stratified ciliated columnar epithelium |
| Answer» E. | |
| 9707. |
Match the branches of Biology listed in column I with the areas of study listed in column II. Choose the answer which gives the correct combination of alphabets of the two columns [KCET 2003] Column I (Branches of Biology) Column II (Area of Study) A Helminthology p Study of insects B Entomology q Study of fungi C Ornithology r Study of algae D Phycology s Study of birds t Study of worms |
| A. | A = p, B = s, C= q, D = t |
| B. | A = t, B = p, C = s, D = r |
| C. | A = s, B = t, C =r, D = p |
| D. | A = r, B = p, C = s, D = q |
| Answer» C. A = s, B = t, C =r, D = p | |
| 9708. |
Bisexual flowers which never open, demonstrate [MP PMT 2004] |
| A. | Cleistogamy |
| B. | Allogamy |
| C. | Autogamy |
| D. | None of these |
| Answer» B. Allogamy | |
| 9709. |
In mammals, the name "Innominate" has been applied to |
| A. | A nerve and an artery |
| B. | A part of skeleton and an artery |
| C. | A bone and a nerve |
| D. | A vein and a kidney tubule |
| Answer» C. A bone and a nerve | |
| 9710. |
The % similarity in \[\beta -\]chain of Hb in man and rhesus monkey is [Orissa 2004] |
| A. | 0.02 |
| B. | 0.04 |
| C. | 0.08 |
| D. | 0.4 |
| Answer» D. 0.4 | |
| 9711. |
A pregnant woman who has done aminocentesis test finds an extra Barr body in her embryo. The syndrome which is likely to be associated with the embryois [AIIMS 1997] |
| A. | Down syndrome |
| B. | Patau syndrome |
| C. | Edward syndrome |
| D. | Klinefelter syndrome |
| Answer» E. | |
| 9712. |
Which is the common character between all the mammal [CPMT 1981; BHU 1999] |
| A. | They are oviparous |
| B. | They are herbivorous |
| C. | They are carnivorous |
| D. | They have seven cervical vertebrae |
| Answer» E. | |
| 9713. |
Persistent calyx forms a dry bladder like structure enclosing edible berry in [BHU 1987] |
| A. | Physalis |
| B. | Nicotiana |
| C. | Capsicum |
| D. | Solanum |
| Answer» B. Nicotiana | |
| 9714. |
Stereocilia are present on |
| A. | Epithelial cell of respiratory tract |
| B. | Epithelial cells of genital tracts |
| C. | Epithelial cells of epididymus |
| D. | None of the above |
| Answer» E. | |
| 9715. |
Crossing over is |
| A. | Inversely related to linkage |
| B. | Directly related to linkage |
| C. | Similar in meaning to linkage |
| D. | None |
| Answer» B. Directly related to linkage | |
| 9716. |
It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material. This is written by [Kerala PMT 2003] |
| A. | Severo Ochoa |
| B. | Archibold Garrod |
| C. | Watson and Crick |
| D. | Beadle and Tatum |
| E. | (e) Meselson and Stahl |
| Answer» D. Beadle and Tatum | |
| 9717. |
A deep feeder root system shows |
| A. | Racemose tap root system |
| B. | Cymose tap root system |
| C. | Adventitious root system |
| D. | None of these |
| Answer» B. Cymose tap root system | |
| 9718. |
Energy produced per gram is highest for |
| A. | Wheat starch |
| B. | Rice starch |
| C. | Potato starch |
| D. | All equally |
| Answer» E. | |
| 9719. |
Phosphorus is present in |
| A. | Vitamin A |
| B. | Vitamin C |
| C. | Lecithin |
| D. | Glycin |
| Answer» D. Glycin | |
| 9720. |
The term for body cavity present in triploblastic animals is [NCERT 1990] |
| A. | Haemocoel |
| B. | Pseudocoelom |
| C. | Coelom |
| D. | All the above |
| Answer» D. All the above | |
| 9721. |
Two species of Amoeba X and Y were kept in fresh water and got adapted. Species X developed contractile vacuole. When both were transferred to sea water and got adapted, both X and Y lost their contractile vacuole. From these observation we conclude that [AFMC 1983, AIIMS 1983] |
| A. | Both X and Y are marine species |
| B. | Species Y is marine and X is fresh water |
| C. | Species X is marine and Y is fresh water |
| D. | Both X and Y are fresh water |
| Answer» D. Both X and Y are fresh water | |
| 9722. |
Fungi inhabiting wood are known as [CPMT 1979] |
| A. | Epibiotic |
| B. | Epixylic |
| C. | Epigean |
| D. | Eucarpic |
| Answer» C. Epigean | |
| 9723. |
\[{{K}_{12}}\] plasmid was studied first in |
| A. | E. coli |
| B. | Shigella |
| C. | Salmonella |
| D. | Eberthella |
| Answer» B. Shigella | |
| 9724. |
Which of the following statement is true with reference to teeth in frog |
| A. | The lower jaw is toothless |
| B. | The upper jaw is toothless |
| C. | Both lower and upper jaws are toothless |
| D. | Both lower and upper jaws are toothed |
| Answer» B. The upper jaw is toothless | |
| 9725. |
The segregation of paired hereditary factors that Mendel postulated occurs during [CBSE PMT 1993] |
| A. | Anaphase of first meiotic division |
| B. | Metaphase of second meiotic division |
| C. | During interphase between two meiotic divisions |
| D. | Prophase of first meiotic division |
| Answer» B. Metaphase of second meiotic division | |
| 9726. |
Organic evolution would have not been taken place [DPMT 1992] |
| A. | If individuals in a population did not show genetic variations |
| B. | If individuals did not inherit characters acquired during their life to their offsprings |
| C. | If somatic variations did not inherit |
| D. | If somatic variations were not transferred to genetic variations |
| Answer» B. If individuals did not inherit characters acquired during their life to their offsprings | |
| 9727. |
A gamopetalous funnel like corolla is called |
| A. | Campanulate |
| B. | Bilabiate |
| C. | Infundibuliform |
| D. | Caryophyllaceous |
| Answer» D. Caryophyllaceous | |
| 9728. |
When two genes are situated very close to each other in a chromosome [AIIMS 1980; AFMC 1994] |
| A. | The percentage of crossing over between them is very high |
| B. | Hardly any cross over are detected |
| C. | No crossing over can take place between them |
| D. | Only double cross overs can take place between them |
| Answer» C. No crossing over can take place between them | |
| 9729. |
A mathematical explanation of enzyme action on substrate was formulated by [Kerala PMT 2003] |
| A. | Van't Hoff |
| B. | Hans Krebs |
| C. | Hans Gaffron |
| D. | Melvin Calvin |
| E. | (e) Leonor Michaelis and Maud Menten |
| Answer» F. | |
| 9730. |
Pollinia are sac like structures |
| A. | Which secrete yellow substance called pollenkit material |
| B. | In which pollen grains are present in mass |
| C. | In which anther lobes are present |
| D. | Which are found in megasporangia |
| Answer» C. In which anther lobes are present | |
| 9731. |
Which of the following bird is viviparous [RPMT 1999] |
| A. | Penguin |
| B. | Humming bird |
| C. | Albatross |
| D. | None of these |
| Answer» E. | |
| 9732. |
Muscles of alimentary canal are chiefly [MP PMT 2001] |
| A. | Striated and Neurogenic |
| B. | Unstriated and Neurogenic |
| C. | Striated and Myogenic |
| D. | Unstriated and Myogenic |
| Answer» E. | |
| 9733. |
In Drosophila, long wing and broad abdomen characters are dominant over to characters vestigeal wing and narrow abdomen. A pure breeding Drosophila having long wings and broad abdomen is crossed with a pure breeding vestigeal-winged and narrow-abdomened Drosophila. Two of the \[{{F}_{1}}\]individuals were crossed and the following results were produced in the\[{{F}_{2}}\] generation Long wing, broad abdomen in 482 Drosophila. Vestigeal wing, narrow abdomen in 154 Drosophila. Which one of the following is illustrated by these results |
| A. | Autosomal linkage |
| B. | Incomplete dominance |
| C. | Mendelian monohybrid inheritance |
| D. | Mendelian dihybrid inheritance |
| Answer» B. Incomplete dominance | |
| 9734. |
Match the following by using codes: [Assam CEE 2001] A. Vernalization ? 1. Camerarius B. Double fertilization ? 2. Hofmeister C. Pollination ? 3. Lysenko D. Alternation of Generations ? 4. Nawaschin |
| A. | \[\begin{matrix} \begin{matrix} A & B & C \\ \end{matrix} & D \\ \begin{matrix} 1 & 2 & 4 \\ \end{matrix} & 3 \\ \end{matrix}\] |
| B. | \[\begin{matrix} \begin{matrix} A & B & C \\ \end{matrix} & D \\ \begin{matrix} 4 & 1 & 2 \\ \end{matrix} & 3 \\ \end{matrix}\] |
| C. | \[\begin{matrix} \begin{matrix} A & B & C \\ \end{matrix} & D \\ \begin{matrix} 3 & 2 & 1 \\ \end{matrix} & 4 \\ \end{matrix}\] |
| D. | \[\begin{matrix} \begin{matrix} A & B & C \\ \end{matrix} & D \\ \begin{matrix} 3 & 4 & 1 \\ \end{matrix} & 2 \\ \end{matrix}\] |
| Answer» E. | |
| 9735. |
In which of the following subclasses of reptiles, the skull has a solid roof [MP PMT 2002] |
| A. | Anapsida |
| B. | Diapsida |
| C. | Synapsida |
| D. | Parapsida |
| Answer» B. Diapsida | |
| 9736. |
The side of a flower facing the mother axis is called [RPMT 1992] |
| A. | Anterior side |
| B. | Posterior side |
| C. | Dorsal side |
| D. | Ventral side |
| Answer» C. Dorsal side | |
| 9737. |
Match items in Column I with those in Column II [CBSE PMT 2005]Column IColumn II(A)Peritrichous flagellation(J)Ginkgo(B) Living fossil(K)Macrocystes(C) Rhizophore(L)Escherichia coli(D) Smallest flowering plant(M)Selaginella(E)Largest perennial alga(N)WolffiaSelect the correct answer from the following |
| A. | \[AL;\text{ }BJ;\text{ }CM;\text{ }DN;\text{ }EK\] |
| B. | \[AK;\text{ }BJ;\text{ }CL;\text{ }DM;\text{ }EN\] |
| C. | \[AN;\text{ }BL;\text{ }CK;\text{ }DN;\text{ }EJ\] |
| D. | \[AJ;\text{ }BK;\text{ }CN;\text{ }DL;\text{ }EK\] |
| Answer» 3orr53t 1nsw5r:. \[AJ;\text{ }BK;\text{ }CN;\text{ }DL;\text{ }EK\] | |
| 9738. |
In the diagram of the section of bone tissue given below, certain parts have been indicated by alphabets; choose the answer in which these alphabets have been correctly matched with the parts which they indicate [KCET 2001] |
| A. | A = Interstitial lamellae, B = Lacuna with osteocytes, C = Blood vessels, D = Nerve, E = Canaliculi, F = Haversian canal, G = Lamellae |
| B. | A = Interstitial lamellae, B = Osteocytes in the lacuna C = Blood vessels, D = Nerve, E = Lamellae, F = Haversian system, G = Canaliculi |
| C. | A = Lamellae, B = Lacuna with osteocytes, C = Artery, D = Lymphatic vessels, E = Canaliculi, F = Vein, G = Haversian canal |
| D. | A = Interstitial lamellae, B = Osteocytes, C = Nerve, D = Blood vessel, E = Lamellae, F = Haversian canal, G = Canaliculi |
| Answer» D. A = Interstitial lamellae, B = Osteocytes, C = Nerve, D = Blood vessel, E = Lamellae, F = Haversian canal, G = Canaliculi | |
| 9739. |
The taxonomic status of an organism can be changed by Changing [AFMC 2002] |
| A. | Anatomy |
| B. | Physiology |
| C. | Morphology |
| D. | Genetic make-up |
| Answer» E. | |
| 9740. |
Stylopodium is present in [RPMT 1991] |
| A. | Mustard |
| B. | Petunia |
| C. | Coriander |
| D. | Pea |
| Answer» D. Pea | |
| 9741. |
Reptiles share which of the following character with birds and mammals [Pb. PMT 2000; CBSE PMT 2002] |
| A. | Amnion |
| B. | Diaphragm |
| C. | Homeothermy |
| D. | All of these |
| Answer» B. Diaphragm | |
| 9742. |
Of the following group which secrete and deposit calcium carbonate and appear like corals [Kerala CET 2003] |
| A. | Red algae |
| B. | Brown algae |
| C. | Blue green algae |
| D. | All of these |
| Answer» B. Brown algae | |
| 9743. |
E.coli cells with a mutated z gene of the lac operon cannot grow in medium containing only lactose as the source energy because [CBSE PMT 2005] |
| A. | In the presence of glucose, E.coli cells do not utilize lactose |
| B. | They cannot transport lactose from the medium into the cell |
| C. | The lac operon is constitutively active in these cells |
| D. | They cannot synthesize functional betagalactosidase |
| Answer» E. | |
| 9744. |
The government sponsored programme for growing trees in towns and cities for aesthetic value is called [AMU 1999] |
| A. | Floriculture |
| B. | Agroforestry |
| C. | Social forestry |
| D. | Urban forestry |
| Answer» E. | |
| 9745. |
The first product of\[C{{O}_{2}}\]fixation in Hatch and Slack \[({{C}_{4}})\]cycle in plants is [CPMT 1983; KCET (Med.) 2001] |
| A. | Formation of oxaloacetate by carboxylation of phosphoenol pyruvate (PEP) in bundle sheath cells |
| B. | Formation of phosphoglyceric acid in mesophyll cells |
| C. | Formation of bundle sheath cells |
| D. | Formation of oxaloacetate by carboxylation of phosphoenol pyruvate (PEP) in the mesophyll cells |
| Answer» E. | |
| 9746. |
Limbless lizard is [MP PMT 2000] |
| A. | Draco |
| B. | Ophisaurus |
| C. | Amblyrhynchus |
| D. | Moloch |
| Answer» C. Amblyrhynchus | |
| 9747. |
A protective cap or hood like covering on the developing capsule in a moss or liverwort is known as [BHU 2002] |
| A. | Spine |
| B. | Calyptra |
| C. | Lodicule |
| D. | Calyptrogen |
| Answer» C. Lodicule | |
| 9748. |
Which cell type does not divide in mammals after birth [MP PMT 1997] |
| A. | Neurons and osteocytes |
| B. | Muscle cells |
| C. | Germ cells |
| D. | Nerve |
| Answer» B. Muscle cells | |
| 9749. |
Triplet for inhibiting process of translation is [CBSE PMT 1996] |
| A. | UAG |
| B. | UAA |
| C. | UAC |
| D. | UGG |
| Answer» C. UAC | |
| 9750. |
The study of the kind and diversity of organisms and the existing relationship among them is called [AMU 1991] |
| A. | Systematics |
| B. | Taxonomy |
| C. | Classification |
| D. | Nomenclature |
| Answer» B. Taxonomy | |