InterviewSolution
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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.
| 101. |
Major check point of cell cycle isA. `G_(1)to S` transitionB. `S to G_(1)` transitionC. `G_(2) to M` transitionD. `Mto G_(2)` transition |
| Answer» Correct Answer - A | |
| 102. |
An angiospermic leaf carries 16 chromosomes ,The number of chromosomes in its endosperm will be :A. 12B. 8C. 16D. 24 |
| Answer» Correct Answer - B | |
| 103. |
`G_(1) to S` transition is regulated byA. Cyclins onlyB. Cyclin independent kinasesC. Mitotic cyclin and cdc2 kinaseD. `G_(1)` cyclin cdc2 kinase |
| Answer» Correct Answer - D | |
| 104. |
What will be the total number of mitotic divisions in the formation of 64 daughter cells ?A. 6B. 32C. 63D. 16 |
| Answer» Correct Answer - C | |
| 105. |
The term "meiosis" was given byA. A. FlemmingB. Farmer and mooreC. JohansenD. Knoll and Ruska |
| Answer» Correct Answer - B | |
| 106. |
During `G_(2)` -phase a diploid cell contains the amount of DNA equal to a :-A. 4nB. 8nC. 2nD. 1n |
| Answer» Correct Answer - A | |
| 107. |
Find out the wrong statementA. Each metaphasic plate in heterotypic division of meiosis contains half the number of diploid set of chromosomes.B. Interkinesis is generally short livedC. Synaptonemal complex and nuclear membrane completely disappear in diploteneD. Synaptonemal complex and nuclear membrane completely disappear in diplotene |
| Answer» Correct Answer - C | |
| 108. |
If the DNA content of a cell is 2C after M phase, what will be the DNA content of the cells at `G_(1),` after S and at `G_(2)`A. 4C, 4C, SCB. 2C, 2C, 4CC. 2C, 4C, 8CD. 2C, 4C, 4C |
| Answer» Correct Answer - D | |
| 109. |
All chromosomes of a cell are directed towards one side and are attached to the nuclear membrane, can be observed inA. LeptoteneB. ZygoteneC. PachyteneD. Diplotene |
| Answer» Correct Answer - A | |
| 110. |
Find the correct statementA. During mitosis, endoplasmic reticulum and nucleolus disappear completely at early prophaseB. Chromosomes are arranged along the equator during prophase of mitosis.C. chromosome is made up of two sister chromatids at anaphase of mitosis.D. Small disc-shaped structures at the surface of centromeres that appear during metaphase are kinetochores |
| Answer» Correct Answer - D | |
| 111. |
Math the followng column. A. A-3,B-5,C-1,D_2B. A-5,B-4,C-1,D-3C. A-5,C-1,D-4,D-2D. A-5,B-2,C-3,D-4 |
| Answer» Correct Answer - C | |
| 112. |
Spindle fibres of a mitotic cell consists ofA. ActinB. FibrinC. CollagenD. Tubuline |
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Answer» Correct Answer - D Spindle fibres of a mitotic cell consists of tubulin. |
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| 113. |
Which of the following processes takes place during pachytene stage of meiosis?A. Apperaance of recombination nodulesB. Formation of synaptonemal complexesC. Dissolution of synaptonemal complexesD. Terminalisation of chiasmata |
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Answer» Correct Answer - A Appearance of recombination nodules processes takes place during panchetene stage of meiosis. |
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| 114. |
Which of the evetns listed below is not observed ruing mitosisA. Chromatin comdensationB. Movement of centrioles to opposite polesC. Appearance of chromosomes with two chromatids joined together at the centroemre.D. Crossing over |
| Answer» Correct Answer - d | |
| 115. |
Which of the events listed below is not observed ruing mitosis?A. chromatic condensationB. Movement of centrioles to opposite polesC. Appearance of chromosomes with two chromatids joined together at the centromereD. Crossing over |
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Answer» Correct Answer - D Crossing over occurs during meiosis I and not mitosis. |
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| 116. |
Which of the events listed below is not observed ruing mitosis?A. chromatin condensationB. Movement of centrioles to opposite polesC. Appearance of chromosomes with two chromsome joined together at the centromereD. Crossing over |
| Answer» Crossing Over. Is the phenomenon of genetic exchange between homologous pair of chromosomes and is a characteristic feature of meiotic cell division. It does not occur in mitosis. Rest of the options represent stages in mitosis. | |
| 117. |
Which part of the human body should one use to demonstrate stages in mitosis ? |
| Answer» All the cells in the human body are somatic cells except germinal cells in the male and femal reproductive organs. The somatic cells divide by mitotic cell division for growth and regeneration. These can be used to demonstrate mitosis. | |
| 118. |
Which of the following option gives the correct sequence of events during mitosisA. Condensation `to` nuclear membrane disassembly` to` arrangement at equator `to` centromere division `to` segregation `to` telephaseB. Condensation `to` crossing over `to` nuclear membrane disassembly `to` segregation `to` telephaseC. Condensation `to` arrangement at equator` to `centromere division` to ` segregation `to` telephaseD. Condensation `to` nuclear membrane disassembly `to` crossing over `to` segregation `to` telephase |
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Answer» Correct Answer - A The correct sequence of events during mitosis is condensation `to`nuclear membrane disassembly `to`arrangement of equator`to`centromere division`to`segregation`to`telophase. |
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| 119. |
Which of the events listed below is not observed ruing mitosis?A. Chromatin condensationB. Movement of centrioles to opposite polesC. Appearance of chromosomes with two chromatids joined together at the cen- tromereD. Crossing over |
| Answer» Correct Answer - d | |
| 120. |
Temporaily suspended stage of diplotene during meiosis -I isA. LeptoteneB. DiakinesisC. DictyoteneD. Pachytene |
| Answer» Correct Answer - C | |
| 121. |
Which of the following option gives the correct sequence of events during mitosisA. Condensation `to` nuclear Membrane disassembly `to` crossing over `to` segregation `to` telophaseB. Condensation `to` nuclear membrane disassembly `to` arrangement at equator `to` centromere division `to` segregation `to` telophaseC. Condensation `to` crossing over `to` nuclear membrane disassembly `to` segregation `to` telophaseD. Condensation `to` arrangement at equator `to` centromere division `to` segregation `to` telophase |
| Answer» Correct Answer - B | |
| 122. |
Between a prokaryote and a eukaryote, which cell has a shorter cell division time ? |
| Answer» Prokaryotic cell has shorter cell cycle than the eukaryotic cell. | |
| 123. |
Recombination of genes occur atA. Prophase in mitosisB. Prophase I in meiosisC. Prophase II in meiosisD. Metaphase II in meiosis |
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Answer» Correct Answer - b The crossing over of homologous chromosme occurs in Pachytene of prophase first of meiosis . It is known as recombination. |
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| 124. |
A somatic cell that has just completed has just completed the S-phase of its cell cycle, as compared to gamete of the same species, hasA. Twice the number of chromosomes and four times the amount of DNAB. Four the number of chromosomes and twice the amount of DNAC. Twice the number of chromosomes and twice the amount of DNAD. Same number of chromosomes and twice the amount of DNA |
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Answer» Correct Answer - A A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species ,has twice the number of chromosomes and four times the amount of DNA. |
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| 125. |
Arrange the following events of meiosis in correct sequence (A) Crossing over (B) Synapsis (C) Termilisation of chiasmata (D) Disappearance of nucleolusA. B,A,C,DB. A,B,C,DC. B,C,D,AD. B,A,D,C |
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Answer» Correct Answer - a In prophase I of meiosis I. the correct sequence of events are B-synapsis in Zygotene C-crossing over in pachytene in diakinesis D-disappearance of nucleolus in diakinesis |
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| 126. |
A somatic cell that has just completed has just completed the S-phase of its cell cycle, as compared to gamete of the same species, hasA. Same number of chromosomes but twice the amount of DNAB. Twice the number of chromosomes and four times the amount of DNAC. Four time the number of chromosomes and twice the amount of DNAD. Twice the number of chromosmes and twice the amount of DNA |
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Answer» Correct Answer - b Gamete is haploid while somatic cell is diploid. After S-phase it will contain twice the number of chromosomes and four times the amount of DNA. |
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| 127. |
In which stage of meiosis the structure, number and shape of chromosomes can be observedA. Prophase IB. Metaphase IC. Anaphase ID. Telophase I |
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Answer» Correct Answer - B In metaphase I of meiosis the structure , number and shape of chromosome can be observed. |
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| 128. |
Identify the pair which is a mismatch for plant cell division.A. Spindle-amphiasterB. Centrioles-absentC. cytokinesis-by cell plate formation which grows centrifugallyD. new cell membrane-endoplasmic reticulum |
| Answer» Correct Answer - A | |
| 129. |
True statement for mitosis isA. the cell formed by it do not resotre nucleoplasmic ratioB. two cells formed as a result of this division are identical in all respectsC. cell formed by it have hal the number of chromosomes than that of parent cellD. cells formed as a result of mitosis have different genetic characters |
| Answer» Correct Answer - B | |
| 130. |
Which of the following events occur during `G_(1)`-phase?A. DNA replicationB. Growth and normal function of celC. MutationD. Fertilisation |
| Answer» Correct Answer - B | |
| 131. |
Meiotic division occurring just at the time of gametogenesis isA. terminalB. initialC. intermediateD. none of these |
| Answer» Correct Answer - A | |
| 132. |
In meiotic division, crossing over takes place duringA. LeptoteneB. DiploteneC. ZygoteneD. Pachytene |
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Answer» Correct Answer - D In meiotic division, crossing over takes place during panchytene. |
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| 133. |
During anaphase -I of meiosisA. Homologous chromosomes separateB. Non-homologous autosomes separateC. Sister chromatids separateD. Non-sister chromatids separate |
| Answer» Correct Answer - a | |
| 134. |
Identify the wrong statement about meiosisA. Pairing of homologus chromosomesB. Four haploid cells are formedC. At the end of meosis the number of chromosomes are reduced to halfD. Two cycle of DNA replication occurs |
| Answer» Correct Answer - d | |
| 135. |
Mitosis is characterised byA. Reduction divisionB. Equal divisionC. Both reduction and equal divisionD. None of the above |
| Answer» Correct Answer - a | |
| 136. |
During anaphase I of meiosisA. homologous chromosomes separateB. non-homologous chromosomes separateC. sister chromatids chromosomes separateD. non-sister chromatids chromosomes separate. |
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Answer» Correct Answer - A During anaphase I, from each tetrad, two chromatids of a chormosome move as a unit (dyad) to one pole of a spindle and the remaining two chromatids of its homolgue migrate to the opposite pole. Thus the homologous chromosmes of each pair, rather than the chromatids of a chromosme, are separated. As a result, half of the chormosomes, which appear in early prophase, go to eadch pole. It is here in the anaphse I that the real reduction in the number of chromosomes occurs. |
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| 137. |
Choose the correct statement.A. Plant cell lacking spindle fibresB. anastral mitosis found in plant cellC. centrifugal cytokinesis in animalsD. Animal mitosis controlled by cytokinin |
| Answer» Correct Answer - B | |
| 138. |
Identify the following figures. A. A-metaphase-II, B-anaphase-I, C-prophase-I, D-anaphase-IIB. A-prophase-I,B-anaphase-I,C-interphase,D-metaphase-IC. A-Metaphse-I,B-anaphase-I, C-prophase-I, D-anaphase-IID. A-prophase-II,B-anaphase-I,C-interphase, D-metaphase-II |
| Answer» Correct Answer - B | |
| 139. |
Identify the false statement.A. DNA synthesis does not occur during the interkinesis of meiotic cycleB. The chronological sequence of meiosis is leptotenegtzygotenegtpachytenegtdiplotenegtdiakinesisC. synapse of homologous chromosomes occurs during diploteneD. Crossing over occurs during pachytene |
| Answer» Correct Answer - C | |
| 140. |
Which of the following statements is incorrect about `G_(0)` phaseA. Mitosis occurs after `G_(0)` phaseB. Biocatalysts can be used to exit `G_(0)` phaseC. Cell volume keeps on increasing during this phaseD. Cell metabolism occurs continuously in `G_(0)` phase |
| Answer» Correct Answer - a | |
| 141. |
Which of the following statements is correct regarding `G_(0)` phase?A. Mitogens are present in `G_(0)` phase.B. Mitogens are present but energy rich compounds are absent.C. Both mitogens and energy rich compounds are present.D. Neither mitogens nor energy rich compounds are present. |
| Answer» Correct Answer - D | |
| 142. |
Reductional division involvesA. Splitting of centromereB. Separation of sister chromatidsC. Formation of single metaphasic plateD. None of the above |
| Answer» Correct Answer - D | |
| 143. |
Meiosis and mitosis differ from each other because in meiosisA. The four nuclei formed are not similar to parental onesB. Homologous chromosomes pair are exchange partsC. Number of chromosomes gets halvedD. All the above |
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Answer» Correct Answer - d All the above, four nuclei formed are not similar to parent ones because they are haploid in nature homologous chromosome pairs are exchange parts because in crossing over exchange of chromatid arms takes place and number of chromosomes gets halved. |
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| 144. |
During gamete formation, the enzyme recombinate participates duringA. Metaphase-IB. Anaphase-IIC. Prophase-I (Pachytene)D. Prophase -II |
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Answer» Correct Answer - c Crossing over is an enzyme-mediated process and the enzyme involved is called recombinase. |
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| 145. |
The synthesis of spindle proteins called as tubulin occurs duringA. `G_(1)`-phaseB. S-phaseC. `G_(2)`-phaseD. M-phase |
| Answer» Correct Answer - C | |
| 146. |
Cell membrane derived in plant cell is formA. endoplasmic reticulumB. chloroplastC. ribosomeD. golgii apparatus |
| Answer» Correct Answer - D | |
| 147. |
Yeast cell divide nonce in approximately everyA. 90 minutesB. 9 minutesC. 24 hoursD. 24 secodns. |
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Answer» Correct Answer - A Yeast cell can progress through cell cycle in only about 90 90 mins. |
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| 148. |
In a culture of E.coli the cell population increased from `1.5 xx 10^(6)` cells/ml to `12 xx 10^(6)` cells/ml in 36 minutes. The generation time isA. 6 min.B. 9 min.C. 12 min.D. 18 min. |
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Answer» Correct Answer - C Increase in number is from `1.5xx10^(6)" to "12xx10^(6)` i.e., 8 times. 8 times take 3 mitotic divisions `1(1)/()2(II)/()4(III)/()8` therefore, generation time is `(36)/(6)=12` minutes. |
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| 149. |
Which one of the following pair is correctly matched?A. Shortest phase of cell cycle - M- phaseB. Synthesis of histone protein - `S phaseC. DNA replication - `G_(1)`-phaseD. Synthesis of RNA and protein - M-phase |
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Answer» Correct Answer - A Histones are formed during S-phase |
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| 150. |
In a dividing somatic cell, which one of the following stage is diploid ?A. `G_(1)`B. `G_(2)`C. SD. M |
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Answer» Correct Answer - A `G_(1)` is diploid, S, `G_(2)` prophase and metaphase have double the amount of DNA/chromosomes and hence are tetraploid. Chromosomes seprate in equal number in anaphase. |
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