789 + Interview Questions in CHROMOSOMAL-BASIS-OF-INHERITANCE IN GENERAL AWARENESS Page 13 InterviewSolution

601.	The chromosomal theory of heredity means thatA. Chromosomes are composed of genesB. Chromosomes are made up of DNA and proteinC. Genes are located on the chromosomeD. All of the above
Answer» Correct Answer - C

Discussion

602.	The maximum number of chromosomes in a flowering plant is 2n=265 in Poa litorosa. The minumum number (Drosophila)isA. 2n=4B. 2n=14C. 2n-2D. 2n=16
Answer» Correct Answer - A

Discussion

603.	Chromosomes found in the salivvaary glands of Drosophila areA. LampbrushB. PolyteneC. SupernumeraryD. B-chromosomes.
Answer» Correct Answer - B

Discussion

604.	Lampbrush chormosome occur inA. Salivary glandsB. Lymph glandsC. Cancer cellsD. Oocytes
Answer» Correct Answer - D

Discussion

605.	A giant chormosome with a number of chromonemata isA. Lampbrush chromosomeB. HeterochromosomeC. supernumerary chromosomeD. `Polytene chromosome
Answer» Correct Answer - D

Discussion

606.	The exhange of one part of a chromosome to the other part of some or another chromosome is called Or The movement of gene from one linkage group to another is calledA. TransferB. DeletionC. FrameshiftD. translocation
Answer» Correct Answer - D

Discussion

607.	The exhange of one part of a chromosome to the other part of some or another chromosome is called Or The movement of gene from one linkage group to another is calledA. InversionB. TranslocationC. Crossing overD. dosage compensation
Answer» Correct Answer - B

Discussion

608.	Mendelian recombinations are due toA. MutationB. LinkageC. Crossing overD. Independent assortment of characters
Answer» Correct Answer - D

Discussion

609.	The frequencty o0f crossing over would be higher ifA. Two genes are located closelyB. Two genes are far apart on a chromosomeC. Two genes are not located on the same chromosomeD. None of the above
Answer» Correct Answer - B

Discussion

610.	The creation of mutations is called :A. MutagenesisB. EvolutionC. Saltatory changeD. Radiation
Answer» Correct Answer - A

Discussion

611.	Girl normal vision whose father was colour and marries a man of normal vision whose father was also colour blind. The sons of this marrieage would beA. All normalB. All colour blindC. 50% colour blindD. 25% colour blind
Answer» Correct Answer - C

Discussion

612.	Which of the following mutations is likely to cause the greatest impact on the expression of a gene?A. Insertion of a base pair in the middle of the coding sequenceB. Deletion of a base pair in the middle of the coding sequenceC. Changing a base pair in the middle of the coding SequenceD. Deletion of a base pair in the second codon of the coding sequence
Answer» Correct Answer - D

Discussion

613.	Crossing over that results in genetic recombination in higher organsims occiour between :A. two daughter nucleiB. two different bivalentsC. sister chromatids of a bivalentD. nonsister chromatids of a bivalent
Answer» Correct Answer - D

Discussion

614.	The gene for cystic fibrosis is locatied over chromosomeA. 4B. 7C. 11D. 12
Answer» Correct Answer - B

Discussion

615.	Genetic recombination is due to :A. fertilization and meiosisB. mitosis and meiosisC. fertilization and mitosisD. None of these
Answer» Correct Answer - A

Discussion

616.	Morgan proposed tht genetic exhcagen or recombination occurs in the region ofA. ChiasmataB. LinkageC. CentromereD. Telomere
Answer» Correct Answer - A

Discussion

617.	One centi Morgan is equal to recombination frequancy of :A. 1B. 0.1C. 10D. 0.01
Answer» Correct Answer - A

Discussion

618.	Which of the following animlas was selected by Morgan for studyin glinkageA. Apis indicaB. Agrobacterium tumefaciensC. Drosophila melanogasterD. E. coli
Answer» Correct Answer - C

Discussion

619.	Morgan coined the term linkage to describeA. Generation of non-parental gene combinationsB. Association of genes on a chromosomeC. Physical status of gene combinationsD. Generation of parental gene combinations
Answer» Correct Answer - B

Discussion

620.	According to Chromosome theory of linkage of morgan and castle(1912)A. Strength of linkage between two successive genes is inversely proportional to distance between two genesB. Genes lie in a linear order in the chromosomesC. linked genes are arranged in cis or trans mannerD. All of the above
Answer» Correct Answer - D

Discussion

621.	In the given diagrma I and II indicate A. telomere and satelliteB. chromosomere and chromonemataC. secondary constriction and satelliteD. centromere and secondary constriction
Answer» Correct Answer - A

Discussion

622.	Identify the correct order of organisation of genetic material from largest to smallest :A. chromosome ,gene , genome, nucleotideB. Genome, chromosome , gene , nucleotideC. Genome , chromosome, nucleotide , geneD. chromosome , genome , nucleotide , gene
Answer» Correct Answer - B

Discussion

623.	Which of the following animal was selected by morgan for studying linkageA. E. coliB. Apis indicaC. Drosophila melanogasterD. Agrobacterium tumefaciens
Answer» Correct Answer - C

Discussion

624.	If haemophilic female survives and marries a normal male , the theroetical ratio of their offspring regrding haimophilia will beA. All offspring haemophilcB. All girls haemophilicC. All sons haemophilicD. 50% of sons and 50% daughters haemophilic .
Answer» Correct Answer - C

Discussion

625.	When a diploid female plant is crossed with a tetraploid male, the ploidy level of endosperm cells in the resulting seed is:A. diploidyB. triploidyC. tetraploidyD. pentaploidy
Answer» Correct Answer - C

Discussion

626.	Offsprings resemble their parents but are not exactly like them. This is so, because ofA. Variation produced by crossing over at the time of gamete formationB. Variation produced by chance and distribution of chromosomes to the two poles of meiosis-IC. Both (a) and (b)D. Mingling of maternal and paternal characters
Answer» Correct Answer - C

Discussion

627.	Colour blindness in which all colours appear grey isA. MonochromotismB. DichromatismC. ProtonopiaD. Deuteronpia
Answer» Correct Answer - A

Discussion

628.	Haploids are used for reaseaches beacuaseA. They contain only one chromosomeB. They contain two sets of chromosomesC. They contain three sets of chromosomesD. They contain only one set of chromosomes
Answer» Correct Answer - D

Discussion

629.	Trisomuy has chromosome omplement of :A. 2n-1B. 2n-1-1C. 2n-+1D. 2n+1+1
Answer» Correct Answer - C

Discussion

630.	Dature is a classical example of :A. TrisomyB. triplooisyC. monosomyD. monoploidy
Answer» Correct Answer - A

Discussion

631.	If a plant were trisomic for one of its chromosomes and these chromosomes carried the alleles A, A1 and A2, respectively, how many types of gamets can be produced?A. 3B. 4C. 6D. 12
Answer» Correct Answer - C

Discussion

632.	Drosophila melangaster possesses eight chromosomes in somatic cells .how many linkage group will be there?A. 1B. 2C. 4D. 8
Answer» Correct Answer - C

Discussion

633.	A trisomic indidual possesses extra -chromosomes :A. OneB. TwoC. threeD. Four
Answer» Correct Answer - A

Discussion

634.	In swseeet Pea , the flower colour changes from Red to white and seed coat colour from grey to white. This is an example ofA. Spontaneous mutationB. Pleitropic mutationC. Reverse mutationD. Induced mutation
Answer» Correct Answer - B

Discussion

635.	Monosomic and trisomic conditions areA. 2n -1, 2n+1B. 2n-1,2n-2C. 2n+1,2n+3D. n,n+1
Answer» Correct Answer - A

Discussion

636.	Datura is a classical example of study ofA. MonosomicsB. TrisomicsC. TriploidsD. Nullisomics
Answer» Correct Answer - B

Discussion

637.	The trisomic condition(2n+1) found in mongoloid imiots would arise most easily fromA. TranslocationB. InversionC. TriploidyD. Non-disjunction
Answer» Correct Answer - D

Discussion

638.	A trisomic individual possesses extra -chromosomes :A. One extro chromosomeB. One less chromosomeC. Two extra chromosomesD. One pair of extra chromosomes
Answer» Correct Answer - A

Discussion

639.	Cholchicine interferes inA. Spindle organisationB. DNA replicationC. Chromosome condensationD. Polyploidy
Answer» Correct Answer - A

Discussion

640.	The X-rays were used to induce mutation in Drosophila byA. HookerB. MorganC. MullerD. Khurana
Answer» Correct Answer - C

Discussion

641.	X- Rays cause mutation byA. Changing the chromosome morphologyB. rupturing the nuclear envelopeC. Breaking the spindle fibresD. inducing the karyokinesis
Answer» Correct Answer - A

Discussion

642.	X-rays cause mutation byA. TransitionB. TransversionC. Deletion and deficiencyD. Base substituion
Answer» Correct Answer - C

Discussion

643.	First definite proof of mutagenic action (effect) of X-rays was discovered or given by or the person known to use X-rays to cause mutation isA. LeeuwenhoekB. HooperC. ListerD. Muller
Answer» Correct Answer - D

Discussion

644.	X- Rays cause mutation byA. Breaking spindleB. Ruptuing of nuclear membraneC. Changing the chromosome morphologyD. Incucing karyokinesis
Answer» Correct Answer - C

Discussion

645.	Moody describies mutation asA. FactorB. SaltationC. SportD. Shotgun
Answer» Correct Answer - D

Discussion

646.	Which of the following will cause a more effective mutation?A. One codonB. One base deletionC. Base substitutionD. Base deamination
Answer» Correct Answer - B

Discussion

647.	A male human is heterozygous for autosomal genes A and B .He is also hemizyous for hameophilic gene H h. what prolportion of sperms will carry abgA. `1//8`B. `1//32`C. `1//4`D. `1//16`
Answer» Correct Answer - A

Discussion

648.	A single gene mutation affecting more than one phenotype is calledA. AzotrophicB. PleiotropicC. AuxotropicD. Pleiotrophic
Answer» Correct Answer - B

Discussion

649.	Phen ylketonuria is genetic disorder caused by a defect in metabolism ofA. Fatty acidsB. PolysaccharideC. Amino acidsD. Vitamins
Answer» Correct Answer - C

Discussion

650.	A mutation at a gene locus changes a character due to change inA. DNA replicationB. Protein synthesis patternC. RNA transcription patternD. Protein structure
Answer» Correct Answer - D

Discussion

Explore topic-wise InterviewSolutions in .

The chromosomal theory of heredity means thatA. Chromosomes are composed of genesB. Chromosomes are made up of DNA and proteinC. Genes are located on the chromosomeD. All of the above

The maximum number of chromosomes in a flowering plant is 2n=265 in Poa litorosa. The minumum number (Drosophila)isA. 2n=4B. 2n=14C. 2n-2D. 2n=16

Chromosomes found in the salivvaary glands of Drosophila areA. LampbrushB. PolyteneC. SupernumeraryD. B-chromosomes.

Lampbrush chormosome occur inA. Salivary glandsB. Lymph glandsC. Cancer cellsD. Oocytes

A giant chormosome with a number of chromonemata isA. Lampbrush chromosomeB. HeterochromosomeC. supernumerary chromosomeD. `Polytene chromosome

The exhange of one part of a chromosome to the other part of some or another chromosome is called Or The movement of gene from one linkage group to another is calledA. TransferB. DeletionC. FrameshiftD. translocation

The exhange of one part of a chromosome to the other part of some or another chromosome is called Or The movement of gene from one linkage group to another is calledA. InversionB. TranslocationC. Crossing overD. dosage compensation

Mendelian recombinations are due toA. MutationB. LinkageC. Crossing overD. Independent assortment of characters

The frequencty o0f crossing over would be higher ifA. Two genes are located closelyB. Two genes are far apart on a chromosomeC. Two genes are not located on the same chromosomeD. None of the above

The creation of mutations is called :A. MutagenesisB. EvolutionC. Saltatory changeD. Radiation

Girl normal vision whose father was colour and marries a man of normal vision whose father was also colour blind. The sons of this marrieage would beA. All normalB. All colour blindC. 50% colour blindD. 25% colour blind

Crossing over that results in genetic recombination in higher organsims occiour between :A. two daughter nucleiB. two different bivalentsC. sister chromatids of a bivalentD. nonsister chromatids of a bivalent

The gene for cystic fibrosis is locatied over chromosomeA. 4B. 7C. 11D. 12

Genetic recombination is due to :A. fertilization and meiosisB. mitosis and meiosisC. fertilization and mitosisD. None of these

Morgan proposed tht genetic exhcagen or recombination occurs in the region ofA. ChiasmataB. LinkageC. CentromereD. Telomere

One centi Morgan is equal to recombination frequancy of :A. 1B. 0.1C. 10D. 0.01

Which of the following animlas was selected by Morgan for studyin glinkageA. Apis indicaB. Agrobacterium tumefaciensC. Drosophila melanogasterD. E. coli

Morgan coined the term linkage to describeA. Generation of non-parental gene combinationsB. Association of genes on a chromosomeC. Physical status of gene combinationsD. Generation of parental gene combinations

According to Chromosome theory of linkage of morgan and castle(1912)A. Strength of linkage between two successive genes is inversely proportional to distance between two genesB. Genes lie in a linear order in the chromosomesC. linked genes are arranged in cis or trans mannerD. All of the above

In the given diagrma I and II indicate A. telomere and satelliteB. chromosomere and chromonemataC. secondary constriction and satelliteD. centromere and secondary constriction

Identify the correct order of organisation of genetic material from largest to smallest :A. chromosome ,gene , genome, nucleotideB. Genome, chromosome , gene , nucleotideC. Genome , chromosome, nucleotide , geneD. chromosome , genome , nucleotide , gene

Which of the following animal was selected by morgan for studying linkageA. E. coliB. Apis indicaC. Drosophila melanogasterD. Agrobacterium tumefaciens

If haemophilic female survives and marries a normal male , the theroetical ratio of their offspring regrding haimophilia will beA. All offspring haemophilcB. All girls haemophilicC. All sons haemophilicD. 50% of sons and 50% daughters haemophilic .

When a diploid female plant is crossed with a tetraploid male, the ploidy level of endosperm cells in the resulting seed is:A. diploidyB. triploidyC. tetraploidyD. pentaploidy

Colour blindness in which all colours appear grey isA. MonochromotismB. DichromatismC. ProtonopiaD. Deuteronpia

Haploids are used for reaseaches beacuaseA. They contain only one chromosomeB. They contain two sets of chromosomesC. They contain three sets of chromosomesD. They contain only one set of chromosomes

Trisomuy has chromosome omplement of :A. 2n-1B. 2n-1-1C. 2n-+1D. 2n+1+1

Dature is a classical example of :A. TrisomyB. triplooisyC. monosomyD. monoploidy

If a plant were trisomic for one of its chromosomes and these chromosomes carried the alleles A, A1 and A2, respectively, how many types of gamets can be produced?A. 3B. 4C. 6D. 12

Drosophila melangaster possesses eight chromosomes in somatic cells .how many linkage group will be there?A. 1B. 2C. 4D. 8

A trisomic indidual possesses extra -chromosomes :A. OneB. TwoC. threeD. Four

In swseeet Pea , the flower colour changes from Red to white and seed coat colour from grey to white. This is an example ofA. Spontaneous mutationB. Pleitropic mutationC. Reverse mutationD. Induced mutation

Monosomic and trisomic conditions areA. 2n -1, 2n+1B. 2n-1,2n-2C. 2n+1,2n+3D. n,n+1

Datura is a classical example of study ofA. MonosomicsB. TrisomicsC. TriploidsD. Nullisomics

The trisomic condition(2n+1) found in mongoloid imiots would arise most easily fromA. TranslocationB. InversionC. TriploidyD. Non-disjunction

A trisomic individual possesses extra -chromosomes :A. One extro chromosomeB. One less chromosomeC. Two extra chromosomesD. One pair of extra chromosomes

Cholchicine interferes inA. Spindle organisationB. DNA replicationC. Chromosome condensationD. Polyploidy

The X-rays were used to induce mutation in Drosophila byA. HookerB. MorganC. MullerD. Khurana

X- Rays cause mutation byA. Changing the chromosome morphologyB. rupturing the nuclear envelopeC. Breaking the spindle fibresD. inducing the karyokinesis

X-rays cause mutation byA. TransitionB. TransversionC. Deletion and deficiencyD. Base substituion

First definite proof of mutagenic action (effect) of X-rays was discovered or given by or the person known to use X-rays to cause mutation isA. LeeuwenhoekB. HooperC. ListerD. Muller

X- Rays cause mutation byA. Breaking spindleB. Ruptuing of nuclear membraneC. Changing the chromosome morphologyD. Incucing karyokinesis

Moody describies mutation asA. FactorB. SaltationC. SportD. Shotgun

Which of the following will cause a more effective mutation?A. One codonB. One base deletionC. Base substitutionD. Base deamination

A male human is heterozygous for autosomal genes A and B .He is also hemizyous for hameophilic gene H h. what prolportion of sperms will carry abgA. `1//8`B. `1//32`C. `1//4`D. `1//16`

A single gene mutation affecting more than one phenotype is calledA. AzotrophicB. PleiotropicC. AuxotropicD. Pleiotrophic

Phen ylketonuria is genetic disorder caused by a defect in metabolism ofA. Fatty acidsB. PolysaccharideC. Amino acidsD. Vitamins

A mutation at a gene locus changes a character due to change inA. DNA replicationB. Protein synthesis patternC. RNA transcription patternD. Protein structure