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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
How are variations introduced during meiosis ? |
| Answer» Meiosis provides a chance for the formation of new combinations of chromosomes by crossing over in prophase I and by random distribution of paternal and material chromosomes. | |
| 302. |
The role of meiosisA. Formation of gametesB. Brinigng haplophaseC. Brining diplophaseD. Completing life cycle |
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Answer» Correct Answer - b The most important role of meiosis is to maintain haploid phase. |
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| 303. |
Which oe of the following statements is true?A. The cell lies dormantB. The cell increases I size durig `G_(0)`-phaseC. The cell increases in size during `G_(1) and G_(2)`-phaseD. The key event of S-phase is the synthesis of proteins required for mitosis |
| Answer» Correct Answer - C | |
| 304. |
Initiation of condensation of chromatin material occurs inA. ProphaseB. AnaphaseC. TelophaseD. Metaphase |
| Answer» Correct Answer - A | |
| 305. |
A bacteria divides in every one minute. A cup is filled in one hour. Time taken to fill one-fourth cup isA. 30 MinutesB. 59 minutesC. 29 minutesD. 58 minutes |
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Answer» Correct Answer - D A bacteria in every one minute .A cup is filled in one hour .Time- taken to fill one-fourth cup is 58 minutes. |
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| 306. |
Condensation of chromosome with visible centromere occurs duringA. `G_(1)`-phaseB. S-phaseC. `G_(2)`-phaseD. M-phase |
| Answer» Correct Answer - D | |
| 307. |
By this stage, condensation of chromosome is completed , mark this stageA. ProphaseB. MetaphaseC. AnaphaseD. Telophase |
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Answer» Correct Answer - B By metaphase stge ,condensation of chromosomes is completed. |
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| 308. |
What will happen just after crossing over?A. Crossing overB. Terminalisation of chiasmataC. Chiasma formationD. synaptonemal complex |
| Answer» Correct Answer - C | |
| 309. |
Select the phase from the following where actual cell division occursA. Quiescent stageB. InterphaseC. `G_(1)` PhaseD. Mitosis phase |
| Answer» Correct Answer - A::D | |
| 310. |
Reorganisation occurs in which stage of cell division ?A. I phaseB. `G_(1)` phaseC. TelophaseD. S phase |
| Answer» Correct Answer - C | |
| 311. |
Which of the following cell does not divide ?A. Nerve cellB. YeastC. Apical meristematic cellD. E, coli |
| Answer» Correct Answer - A | |
| 312. |
Bivalents in meiosis areA. TetradB. Pairs of non-homologous chromosomesC. Pairs of several chromatidsD. Pairs of homozygous chromosomes |
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Answer» Correct Answer - a Bivalent formation occurs in pechytene of meiosis. In this stage, two chromatids of homologous chromosome (Bivalent) later on forms a cross and now showing a tetravalent or tetrad stage. |
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| 313. |
Meiosis occurs in organisms duringA. Sexual reproductionB. Vegetative reproductionC. Both sexual and vegatative reproductionD. None of these |
| Answer» Correct Answer - a | |
| 314. |
the singifincane of meiosis lies inA. Reduction of the diploid number of chromosomes to haploidB. Maintaining constancy in the number of diploid chromosomes during sexual reproductionC. Production of genetic variability in the population of a speciesD. All the above |
| Answer» Correct Answer - d | |
| 315. |
The stages through which a cell passes from one division to the next is calledA. cell divisonB. cell cycleC. karyokinesisD. Cytokinesis |
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Answer» Correct Answer - B The stage through which a cell passes from one division to the next is called cell cycle. |
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| 316. |
Most of the organelle duplicates occur duringA. M-PhaseB. InterphaseC. InterkinesisD. Cytokinesis |
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Answer» Correct Answer - B Most of the organelle duplication occurs during interphase |
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| 317. |
Which of the following is not true for meiosisA. Production of genetic variabilityB. Maintaining constancy of chromosome number during sexual reproductionC. Recution of chromosome number to one halfD. Production of diploid cell |
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Answer» Correct Answer - d As a result of meiosis only haploid cells are produced. |
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| 318. |
Cells of certain species of animals have six pairs of chromosmes. How many molecules of DNA will remains in a nucleus of these animals during `G_(2)` phaseA. 12B. 48C. 6D. 24 |
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Answer» Correct Answer - d `G_(1)rarr6` pairs or 12 chromosomes or 12 chromatids or 12 DNA molecuels |
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| 319. |
Longest phase of meiosis isA. prophase-IB. Prophase-IIC. anaphase-ID. metaphase-II |
| Answer» Correct Answer - A | |
| 320. |
Longest phase of meiosis isA. Metaphse IB. Prophase IC. Anaphase ID. Telophase I |
| Answer» Correct Answer - B | |
| 321. |
A diploid cell has 2n = 4. If this cell divides by mitosis, how many types of genotypes are formed amongst the daughter cells ?A. 1B. 2C. 3D. 4 |
| Answer» Correct Answer - A | |
| 322. |
In mitosis ,centromere divides duringA. ProphaseB. MetaphaseC. AnaphaseD. Telophase |
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Answer» Correct Answer - C In mitosis, centromere divides during anaphase |
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| 323. |
Comparing small and large cells, which statement is correct ? (1) Small cells have a small surface area per cells (2) Exchange rate of nutrients is fast with large cells (3) Small cells have a large surface area per volume ratio (4) Exchange rate of nutrients is slow with small cellsA. `G_(1)` phaseB. Prophase of mitosisC. S-phaseD. `G_(2)` phase |
| Answer» Correct Answer - C | |
| 324. |
Recombinant nodules are found during which of the followingA. anaphaseB. metaphaseC. prophaseD. telophase |
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Answer» Correct Answer - C Recombination nodules are formed during prophase. |
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| 325. |
teminalisation of chiasmata occurs duringA. Prophase-IB. Metaphase-IC. Anaphase-ID. Telophase-I |
| Answer» Correct Answer - A | |
| 326. |
_________ marks the site where crossing over had occurred.A. DiakinesisB. SynapsisC. ChiasmataD. Leptotene |
| Answer» Correct Answer - C | |
| 327. |
The homologous chromosomes move towards the opposite poles duringA. Anaphase IB. Anaphase IIC. LeptoteneD. Pachytene |
| Answer» Correct Answer - A | |
| 328. |
Meiosis involvesA. Two nuclear division and one chromosomal divisionB. One nuclear division and two chromosomal divisionsC. Two nuclear division and two chromosomal divisionsD. Two nuclear division and two chromosomal divisions |
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Answer» Correct Answer - A Meiosis involves toe nuclear divisions and one chromosome division. |
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| 329. |
Match the following column A. A-1,B-2,C-3,D-4B. A-1,B-3,C-2,D-4C. A-4,B-2,C-2,D-1D. A-4,B-1,C-2,D-3 |
| Answer» Correct Answer - C | |
| 330. |
During mitosis, the number of chromosomes getsA. ChangedB. No changeC. May be changed if cell is matureD. May be changed if cell is immature |
| Answer» Correct Answer - B | |
| 331. |
Cell becomes refractive and viscous first duringA. prophaseB. telophaseC. anaphaseD. cytokinesis |
| Answer» Correct Answer - A | |
| 332. |
In meiosis chromosome number becomesA. Half of its parent chromosomeB. Same as that of parent chromosomeC. One-fourth of its parent chromosomeD. None of the above |
| Answer» Correct Answer - A | |
| 333. |
In meiosis chromosome number becomesA. half of its parent chromosomeB. same as that of parent chromosomeC. one fourth of its parent chromosomeD. none of the above |
| Answer» Correct Answer - A | |
| 334. |
The stage at which cytokinesis begins in plant cells isA. AnaphaseB. I-phaseC. Late MetaphaseD. Telophase |
| Answer» Correct Answer - A | |
| 335. |
At diakinesis, a meiocyte has ten pairs of chromosomes. The chromosomes number expected in each nucleus is, therefore,A. ten at the end of I division and 5 at the end of 11 divisionB. ten at the end of I division and ten at the end of second divisionC. five at the end of I division and 5 at the end of second divisionD. 20 at the end of I division and ten at the end of second division |
| Answer» Correct Answer - B | |
| 336. |
During regeneration, following takes place (a) cell division (b) cell movement (c) dedifferentiation and (d) tissue differentiation The correct sequence isA. a, b, c, dB. c, a, b, dC. b, a, c, dD. a, c, b, d |
| Answer» Correct Answer - B | |
| 337. |
In eukaryotic cell cycle, cell fusion experimetns show thatA. When an S-phase cell is fused with a `G_(1). Phase cell `G_(1)-`phase cell is timulated to snthesize DNAB. When an S-phase cell is fused with a `G_(2)-` phase cell, DNA synthesis is induced in `G_(2)`-phase cell.C. When a `G_(1)` phase cell is fused with a `G_(2)`-phase cell. DNA synthesis is induced in both `G_(1)` and `G_(2)` phase cellsD. When a `G_(1)`-phase cell is fused with an M-phase cell both `G_(1)` and M phase cells are stimulated to synthesise DNA. |
| Answer» Correct Answer - b | |
| 338. |
Zygotic meiosis occurs inA. PinusB. MarchanitaC. ChlamydomonasD. Dryopteris |
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Answer» Correct Answer - C Zygote meiosis occurs in chlamydomonas algae. |
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| 339. |
Which of the following cells in an adult animal do not appear to exhibit divisionA. Bone marrow cellsB. Upper layer of epidermsC. Heart cellsD. All of the above |
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Answer» Correct Answer - C Heart cells in an adult animal donot appear to exibit division. |
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| 340. |
Meiosis was discovered byA. StrasburgerB. HofmeisterC. suttonD. van beneden |
| Answer» Correct Answer - D | |
| 341. |
Meiosis was discovered byA. StrassburgerB. HofmeisterC. SuttonD. Amici |
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Answer» Correct Answer - C Meiosis was discovered by Sutton. |
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| 342. |
In eukaryotic cell cycle, cell fusion experimetns show thatA. when a S-phase cell is fused with a `G_(1)`-phase cell, `G_(1)`-phase cell is stimulated to synthesise DNAB. when a S-phase cell is fused with a `G_(1)`-phase cell, DNA synthesis is induced in `G_(1)`-phase cellC. when a S-hase cell is fused with a `G_(1)`-phase cell, DNA synthesis in induced in an M-phase cellD. when a `G_(1)`-phase cell is fused with an M-phase cell, both `G_(1) and ` M-phase cells are stimulated to synthesise DNA |
| Answer» Correct Answer - B | |
| 343. |
Four daughter cells formed after meiosis areA. AnucleateB. PolynucleateC. Genetically dissimilarD. Genetically similar |
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Answer» Correct Answer - C The four daughter cells produced at the end of `muepsilosigmalsigma` are genetially dissimilar. |
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| 344. |
Meiosis is evolutionary significant because it results inA. Genetically similar daughtersB. Four daughter cellsC. Eggs and spermsD. Recombinations |
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Answer» Correct Answer - D Meiosis is evolutionary significant because it results in recombinations. |
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| 345. |
A typical eukaryotic cell cycle is illustrated byA. yeastB. BacteriaC. Human cells in cultureD. Both A and C |
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Answer» Correct Answer - C A typical eukaryotic cell cycle is illustrated by human cells in culture. |
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| 346. |
Which of the following is correct regarding the given figure? A. 3 6 12B. 3 6 12C. 6 6 12D. 6 12 6 |
| Answer» Correct Answer - B | |
| 347. |
Meiosis consists ofA. two cell divisions without any DNA replicationB. two cell divisions in which chromosome number is reduced to halfC. two cell devisions with only two rounds of chromosome replicationD. a single cell division with chromosome replication. |
| Answer» Correct Answer - B | |
| 348. |
Meiosis is evolutionary significant because it results inA. RecombinationsB. Eggs and spermsC. Four daughter cellsD. Genetically similar daughter cells |
| Answer» Correct Answer - A | |
| 349. |
The term meiosis was coined byA. Farmer and MooreB. FlemmingC. BlackmanD. Robertson |
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Answer» Correct Answer - A The term meiosis was coined by Farmer and Moore. |
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| 350. |
The plane of alignment of the chromosines at metaphase is refferred to as theA. Metaphasic alignmentB. Chromosome aligmentC. Metaphase plate(equatorial plate)D. All of the above |
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Answer» Correct Answer - C The plane of alignment of the chromosomes at metaphse is reffered to as the metaphase plate. |
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