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.
| 751. |
Before a deletion occurred, the gene sequence was ABCDE,now it isA. ABDBEFB. FEDCBAC. ABDEFD. ABEDCF |
| Answer» Correct Answer - C | |
| 752. |
When an animal has both the characters of male and female,it is called:A. IntersexB. GynandromorphC. Super femaleD. super male |
| Answer» Correct Answer - B | |
| 753. |
The terms nucleosome was given by oudet .Olins ans olins called these particle as "nu" bodies .which histones is abserntin nucleosome ?A. `H_(1)`B. `H_(2)A`C. `H_(3)`D. `H_(4)` |
| Answer» Correct Answer - A | |
| 754. |
Walter sutton is famous for his contribution to :A. TotipotencyB. Genetic engineeringC. Quantitive geneticsD. Chromosomal genetics |
| Answer» Correct Answer - D | |
| 755. |
Longest chromosomes occur e inA. LiliumB. Zea maysC. AlliumD. Trillium |
| Answer» Correct Answer - D | |
| 756. |
The sum total of extrachromosomal hereditary determinants in a cell forms :A. plastidB. plasmidC. plasmonD. phasmid |
| Answer» Correct Answer - C | |
| 757. |
The longest chromosome is seen in :A. alliumB. LilliumC. TrilliumD. Zea mays |
| Answer» Correct Answer - C | |
| 758. |
A part from DNA in the bacterial nucleoid ,three is a circular extrachromosomal DNA , called :A. PlasmidB. mesosomeC. chromosomeD. none of these |
| Answer» Correct Answer - A | |
| 759. |
Chromosome were first seen byA. WaldeyerB. FlemmingC. HoffmeisterD. Strasburger |
| Answer» Correct Answer - C | |
| 760. |
chromosomes in a bacterial cell can be 1-3 in number and :A. are always linearB. are always circularC. can be circular as well as linear with in the same cellD. Can be either circular or linear ,but never both with in the same cell |
| Answer» Correct Answer - B | |
| 761. |
A nueurospora si an auxotroph for tyrosine ,an anmio acid . This means:A. There is no relationship with tyrosineB. It can not survive with out tyrosineC. It can survive without tyrosineD. None of the above |
| Answer» Correct Answer - B | |
| 762. |
An auxotroph is a (an):A. Plant that responds by bending towards the sunB. Plant that is able to synthesize its own carbohydratesC. Mutant which has lost its ability to synthesize one or more essential compoundsD. Organism that depends on another organism for meeting its nutritional requirements |
| Answer» Correct Answer - C | |
| 763. |
An auxotroph is a (an):A. Plant capable of synthesising own crbohydratesB. Plant showing quick bending response to sunlightC. A mutatn having lost the ability to synthesisie one or more nutrientsD. An organism dependent on another for nutritional requirements |
| Answer» Correct Answer - C | |
| 764. |
Genes located on mitochondrial DNA bring aboutA. Paternal inheritanceB. Maternal inheritanceC. Biparental inheritaanceD. Thee is no inheritance |
| Answer» Correct Answer - B | |
| 765. |
Extra nuclear genes are present inA. CytoplasmB. E.R and cytoplasmC. Ribosome and cytoplasmD. Mitochondrial and cytoplasmic particles |
| Answer» Correct Answer - D | |
| 766. |
Plasmids occur in :A. virusesB. bacteriaC. chloroplastsD. chromosomes |
| Answer» Correct Answer - B | |
| 767. |
Which one of the following carries extra nuclear genetic material ?A. Golgi apparatusB. RibosomesC. ChromosomeD. Plastids/Mitochondria |
| Answer» Correct Answer - D | |
| 768. |
F factor is present in :A. CosmidB. plasmidC. Cell wallD. Golgi body |
| Answer» Correct Answer - B | |
| 769. |
Cytoplasmic male sterility is passed downA. Through bacteriophageB. PaternallyC. MaternallyD. Biparentally |
| Answer» Correct Answer - C | |
| 770. |
Cytoplasmic male sterility is passed down :A. MaternallyB. paternallyC. biparentallyD. though bacteriophage |
| Answer» Correct Answer - A | |
| 771. |
Chromatid isA. One half of chromosomeB. Haploid chromosomeC. Complete chromosomeD. Duplicate chromosome |
| Answer» Correct Answer - A | |
| 772. |
One of the reasons why haploids are considered more suitable than diploids for the study of mutation is that the haploidsA. Have shorter generation timeB. Have small number of chromosomesC. Allowexpression of recessive mutations immediately (or in first generation)D. Can be obtained in large number to give correct estimate of mutation theory |
| Answer» Correct Answer - C | |
| 773. |
Haploids are more suitable for mutation studies than the diploids. This is becauseA. Haploids are reproductively more stable than diploidsB. Mutagens penetrate in haploids more effectively than in diploidsC. Haploids are more abundant in nature than diploidD. all mutations, whether dominant or recessive are expreseed in haploids |
| Answer» Correct Answer - A | |
| 774. |
Polyploidy can be produced artificially by :A. ColchineB. inbreedingC. Line breedingD. Self pollination |
| Answer» Correct Answer - A | |
| 775. |
Out of A-T,G-C pairing bases of DNA may exist in alternate valencyt state owing to arrangement calldA. Analogue substitutionB. Tautomerisational mutationC. Fame shift muttionD. Point mutation |
| Answer» Correct Answer - B | |
| 776. |
Probability of male child of hamemophlicac father and normal mother becoming haemophiliac ius |
| Answer» Correct Answer - A | |
| 777. |
Paramoecium exhibits cytoplasmic inheritance throughA. ChromosomeB. Nuclear geneC. Dappa particlesD. DNA |
| Answer» Correct Answer - C | |
| 778. |
Who studied sex linked inheritance for the first time ?A. MorganB. BridgesC. Mc clungD. Wilson and stevens |
| Answer» Correct Answer - A | |
| 779. |
Heterogamesis isA. Formation of two types of gametesB. Morphological distinction of male and female gametesC. Formation of two types of gametes by one sex and one type by other sexD. Formation of two types of gametes by both the sexes |
| Answer» Correct Answer - C | |
| 780. |
Mutations are mainly responsible for controllingA. Maintaining genetic continuityB. Increasing population rateC. controlling variation in organismsD. Controlling extinction of organisms |
| Answer» Correct Answer - C | |
| 781. |
mutations are mainly responsible for controlling :A. Variation in organismsB. extinction of organismsC. increasing popullation rateD. maintaining genetic continuity trait |
| Answer» Correct Answer - A | |
| 782. |
Muatation theory was proposed by :A. hugo de VariesB. Charles DarwinC. Gregor mendelD. baptiste lamarck |
| Answer» Correct Answer - A | |
| 783. |
the plant on which de vries worked in preparation of mutation theory was:A. pansyB. sweet peaC. garden peaD. evening primrose |
| Answer» Correct Answer - D | |
| 784. |
The plant on which Hugo de vries based his evolution theory isA. Pisum sativamB. antirrhinum majusC. lathyrus odoratousD. Oenothera lamarckiana |
| Answer» Correct Answer - D | |
| 785. |
A man made allopolyploid isA. water melonB. gossypiumC. triticaleD. triticum |
| Answer» Correct Answer - C | |
| 786. |
Point mutationn isA. loss of geneB. change in a base of geneC. addition of a geneD. deletion of a segment of gene |
| Answer» Correct Answer - B | |
| 787. |
Colchicine brings about :A. polyploidyB. cell divisionC. cell elongationD. cell differentation |
| Answer» Correct Answer - A | |
| 788. |
Barr body in mammals representA. heterochrmoatin in male and female cellsB. all heterochromatin in female cellsC. one of two x chromosomes in somatic cells of femaleD. y-chromosome in somatic cells |
| Answer» Correct Answer - C | |
| 789. |
Telomeres with repetitive DNA sequenceA. Act as repliconsB. Are transcription initiatorsC. Help in chromosome pairingD. Prevent chromossome loss |
| Answer» Correct Answer - D | |