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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.
| 6251. |
Key point to Lamarck's view about organic evolution is that every offspring [CPMT 1981, 83, 84] |
| A. | Is similar to its parents |
| B. | Inherits characters acquired by the parental generation |
| C. | Shows struggle for existence |
| D. | Repeats phylogeny in its ontogeny |
| Answer» C. Shows struggle for existence | |
| 6252. |
Persons who do hard manual work with their hands, are likely to develop [DPMT 1986] |
| A. | Thick subcutaneous fat in their palms |
| B. | Thick epidermis on their palms |
| C. | Greater number of sweat pores in their hands |
| D. | Greater quantity of melanin all over the body |
| Answer» C. Greater number of sweat pores in their hands | |
| 6253. |
Lamarck's acquired characters are not inherited and have no evolutionary value. This statement was given by |
| A. | Hugo de Vries |
| B. | Charles Darwin |
| C. | Weismann |
| D. | T.H. Morgan |
| Answer» D. T.H. Morgan | |
| 6254. |
When an organ is used it will develop and if it is not used, it weakens to become vestigial. Who could have said their theory [BHU 1986; CPMT 1983; DPMT 1993; AFMC 2001; MP PMT 2003] |
| A. | Darwin |
| B. | de Vries |
| C. | Lamarck |
| D. | Mendel |
| Answer» D. Mendel | |
| 6255. |
The scientists regarded as Neo?Lamarckist are [AIIMS 1993] |
| A. | August Weismann and T.H. Morgan |
| B. | Hardy Weinberg |
| C. | Correns, Tshermak and Hugo de Vries |
| D. | Kammerer and Mc Dougall |
| Answer» E. | |
| 6256. |
Author of "Philosophique Zoologique'' is [BHU 1982; JIPMER 1993; MP PMT 2001] |
| A. | Mendel |
| B. | Darwin and Wallace |
| C. | Lamarck |
| D. | Darwin |
| Answer» C. Lamarck | |
| 6257. |
Lamarck's theory of evolution is also called |
| A. | Theory of special creation |
| B. | Inheritance of acquired characters |
| C. | Survival of the fittest |
| D. | None of these |
| Answer» C. Survival of the fittest | |
| 6258. |
Lamarckian theory deals with [MP PMT 1997; Orissa JEE 2005] |
| A. | Acquired characters |
| B. | Germplasm |
| C. | Struggle for existence |
| D. | Mutation |
| Answer» B. Germplasm | |
| 6259. |
The idea of use and disuse of organs was given by [AFMC 2001; BVP 2004] |
| A. | Darwin |
| B. | Lamarck |
| C. | Hugo de Vries |
| D. | Morgan |
| Answer» C. Hugo de Vries | |
| 6260. |
Select the mismatched pair [AMU 2005] |
| A. | Lamarck ? Species are not immutable |
| B. | Allopatric ? Separate by space |
| C. | Darwin finches ? Like Galapagos |
| D. | Hugo de vries ? Evolution is discontinuous |
| E. | (e) Coacervates ? Group of organic compound that surrounded by a membrane. |
| Answer» B. Allopatric ? Separate by space | |
| 6261. |
Weismann's experiment discarded the views of [CPMT 1995] |
| A. | Lamarck |
| B. | Darwin |
| C. | Khurana |
| D. | Haeckel |
| Answer» B. Darwin | |
| 6262. |
A scientist who worked on rats cut their tails upto 21 successive generations but at last he found that tail remained normal. By this experiment theory of which scientist is disapproved [CPMT 1995] |
| A. | Darwin |
| B. | Lamarck |
| C. | Hugo de Vries |
| D. | Mendal |
| Answer» C. Hugo de Vries | |
| 6263. |
Germplasm theory against Lamarck's principle, was given by [BHU 1982; EAMCET 1998; MP PMT 1994, 96; Manipal 2005] |
| A. | Weismann |
| B. | Darwin |
| C. | Lamarck |
| D. | Hugo de Vries |
| Answer» B. Darwin | |
| 6264. |
Lac is used in |
| A. | Varnish industry only |
| B. | Printing and varnish industries only |
| C. | Gramophone records, varnish, electrically insulated goods and printing industries |
| D. | None of these |
| Answer» D. None of these | |
| 6265. |
Raw lac is separated from the twigs of tree by dissolving it into |
| A. | Organic solvent |
| B. | Hot alcohol |
| C. | Hot water |
| D. | Cold water |
| Answer» D. Cold water | |
| 6266. |
The larvae of lac insects feed upon |
| A. | Leaves of the plant |
| B. | Stem of the plant |
| C. | Juice of the plant from phloem |
| D. | Insects of other groups |
| Answer» D. Insects of other groups | |
| 6267. |
The female of lac insect lays about..... eggs at a time |
| A. | 150-250 |
| B. | 200-300 |
| C. | 250-450 |
| D. | 300-400 |
| Answer» C. 250-450 | |
| 6268. |
Male and female capsules are........ respectively |
| A. | Tubular and rounded |
| B. | Tubular and irregular |
| C. | Rounded and tubular |
| D. | Rounded and irregular |
| Answer» B. Tubular and irregular | |
| 6269. |
Main composition of lac is |
| A. | Glue, pigment and sugar |
| B. | Wax, pigment and glue |
| C. | Resin, pigment, wax and glue |
| D. | Resin, sugar and wax |
| Answer» D. Resin, sugar and wax | |
| 6270. |
Order of lac insect is [MP PMT 1999; CBSE PMT 2001] |
| A. | Hymenoptera |
| B. | Lepidoptera |
| C. | Hemiptera |
| D. | Diptera |
| Answer» D. Diptera | |
| 6271. |
Which one is modern |
| A. | Sericulture |
| B. | Tissue culture |
| C. | Apiculture |
| D. | Pisciculture |
| Answer» C. Apiculture | |
| 6272. |
Which one of these is a secretion from body of an insect |
| A. | Honey |
| B. | Lac |
| C. | Pearl |
| D. | Coral |
| Answer» C. Pearl | |
| 6273. |
Largest lac producing country is |
| A. | Japan |
| B. | Phillipines |
| C. | India |
| D. | China |
| Answer» D. China | |
| 6274. |
Lac producing insect is [MP PMT 2004] |
| A. | Lytta |
| B. | Tachardia lacca |
| C. | Bombyx mori |
| D. | Antheraea assama |
| Answer» C. Bombyx mori | |
| 6275. |
Lac is produced as [MP PMT 1996; CPMT 1996; BVP 2002] |
| A. | Faces of lac insect |
| B. | Secretion from body |
| C. | Excretion from body |
| D. | Excess food oozing out of body |
| Answer» C. Excretion from body | |
| 6276. |
Which lac secreting insect undergoes death after reproduction |
| A. | Male |
| B. | Female |
| C. | Worker |
| D. | None of the above |
| Answer» B. Female | |
| 6277. |
Lac contains how much percent resins |
| A. | 0.4 |
| B. | 50 - 55% |
| C. | 68 - 90% |
| D. | 90 - 95% |
| Answer» D. 90 - 95% | |
| 6278. |
Lac contains how much percent wax |
| A. | 0.01 |
| B. | 0.04 |
| C. | 0.06 |
| D. | 0.1 |
| Answer» D. 0.1 | |
| 6279. |
The commercial lac is produced in large quantities by |
| A. | Male insect |
| B. | Female insect |
| C. | a and b both |
| D. | None of the above |
| Answer» C. a and b both | |
| 6280. |
Palas and Ber produce a particular type of lac which is known as |
| A. | Khair lac |
| B. | Kusum lac |
| C. | Neelam lac |
| D. | None of the above |
| Answer» C. Neelam lac | |
| 6281. |
Indian Lac Research Institute is situated at [MP PMT 1994] |
| A. | Ranchi |
| B. | Mysore |
| C. | Dehradoon |
| D. | Nagpur |
| Answer» B. Mysore | |
| 6282. |
Commercial lac is produced from [CPMT 1973; CMC Vellore 1993] |
| A. | The nest of a type of bird |
| B. | The exudation of a type of insect |
| C. | The scale of a type of fish |
| D. | The root of a plant |
| Answer» C. The scale of a type of fish | |
| 6283. |
Chemical nature of lac is [MP PMT 1993] |
| A. | Protein |
| B. | Carbohydrate |
| C. | Mettaloid |
| D. | Resin |
| Answer» E. | |
| 6284. |
Lac insect is a |
| A. | Symbiont insect |
| B. | Commensal insect |
| C. | Parasitic insect |
| D. | a and b both |
| Answer» D. a and b both | |
| 6285. |
In ATP molecule energy is stored in |
| A. | Chemical bonds |
| B. | Hydrogen bonds |
| C. | Carbon bonds |
| D. | Pyrophosphate bonds |
| Answer» E. | |
| 6286. |
Which of the following is important in electron transport system [Wardha 2005] |
| A. | Ubiquinone |
| B. | Acetyl CoA |
| C. | Tricarboxylic acid |
| D. | Ferricyanide |
| Answer» B. Acetyl CoA | |
| 6287. |
Which can accept a hydride ion during electron transduction system [Manipal 2005] |
| A. | \[FADH,\text{ }NADH\] |
| B. | \[FA{{D}^{+}},\text{ }NAD{{P}^{+}}\] |
| C. | \[FA{{D}^{+}},\text{ }NADH\] |
| D. | \[FADH,\text{ }NA{{D}^{+}}\] |
| Answer» C. \[FA{{D}^{+}},\text{ }NADH\] | |
| 6288. |
Which of the following is not an intermediate of Kreb's cycle [Bihar 2005] |
| A. | Acetyl Co-A |
| B. | Citric acid |
| C. | Succinic acid |
| D. | Lactic acid |
| Answer» E. | |
| 6289. |
During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from APD [CBSE PMT 2005] |
| A. | Conversion pyrubic acid to acetyl CoA |
| B. | Electron transport chain |
| C. | Glycolysis |
| D. | Kreb's cycle |
| Answer» E. | |
| 6290. |
The enzymes for electron transport system are located in the [Kerala PMT 2004] |
| A. | Plastid |
| B. | Endoplasmic reticulum |
| C. | Ribosomes |
| D. | Mitochondria |
| E. | Golgi bodies |
| Answer» E. Golgi bodies | |
| 6291. |
Which of the following does not function as an electron carrier [Kerala PMT 2004] |
| A. | Coenzyme Q |
| B. | Cytochrome-c |
| C. | Cytochrome-a |
| D. | Cytochrome\[-{{a}_{3}}\] |
| E. | \[{{H}_{2}}O\] |
| Answer» F. | |
| 6292. |
In oxidative photophosphorylation, the last 3 steps are as follows [Orissa JEE 2004] \[Q\to C\to a{{a}_{3}}\to {{O}_{2}}\] |
| A. | \[Q\to C\] is \[{{H}^{+}}\] absorbing site |
| B. | \[a{{a}_{3}}\to {{O}_{2+}}{{H}^{+}}\] yielding site |
| C. | \[Q\to C\] is \[{{H}^{+}}\] yielding site and \[a{{a}_{3}}\to {{O}_{2}}\] is \[{{H}^{+}}\] absorbing site |
| D. | No \[{{H}^{+}}\] is absorbed or released |
| Answer» D. No \[{{H}^{+}}\] is absorbed or released | |
| 6293. |
Activity of succinic dehydrogenase involves the following in TCA cycle [DPMT 2004] |
| A. | NAD |
| B. | FAD |
| C. | GDP |
| D. | ATP |
| Answer» C. GDP | |
| 6294. |
Which of the following is produced during Kreb's cycle [BVP 2003] |
| A. | Citric acid |
| B. | Lactic acid |
| C. | Acetyl coenzyme-A |
| D. | Acetic acid |
| Answer» B. Lactic acid | |
| 6295. |
Kreb's cycle is also called as: [MHCET 2003] |
| A. | Tricarboxylic acid cycle |
| B. | Oxidative phosphorylation |
| C. | EMP pathway |
| D. | Glycolysis |
| Answer» E. | |
| 6296. |
In which one of the following do the two names refer to one and the same thing [CBSE PMT 2003] |
| A. | Tricarboxylic acid cycle and urea cycle |
| B. | Kreb's cycle and Calvin cycle |
| C. | Tricarboxylic acid cycle and citric acid cycle. |
| D. | Citric acid cycle and Calvin cycle |
| Answer» D. Citric acid cycle and Calvin cycle | |
| 6297. |
\[FAD{{H}_{2}}\]is produced during the following reaction [MHCET 2002] |
| A. | Succinic acid to fumaric acid |
| B. | Fumaric acid to malic acid |
| C. | Succinyl Co-A to succinic acid |
| D. | Isocitric acid to oxaloacetic acid |
| Answer» B. Fumaric acid to malic acid | |
| 6298. |
Kreb's cycle takes place in [BVP 2001; MHCET 2002] |
| A. | Chloroplast |
| B. | Peroxisomes |
| C. | Mitochondria |
| D. | Cytoplasm |
| Answer» D. Cytoplasm | |
| 6299. |
Final electron acceptor in ETS is [Kerala CET 2002; CPMT 2003; BHU 2004] |
| A. | \[{{H}_{2}}O\] |
| B. | \[{{O}_{2}}\] |
| C. | \[cvt\,\,{{a}_{3}}\] |
| D. | \[cvt\,\,a\] |
| Answer» C. \[cvt\,\,{{a}_{3}}\] | |
| 6300. |
Ferredoxin is a |
| A. | Protein |
| B. | Fat |
| C. | Phenol |
| D. | None of the above |
| Answer» B. Fat | |