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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.
| 251. |
The function of non-sense codons is-A. To release polypeptide chain from t-RNAB. To from an unsprcified amino acidC. To terminate the masseage of a gene controlled D. To convert a sense DNA into non sense DNA |
| Answer» Correct Answer - C | |
| 252. |
The function of non-sense codons is-A. To release polypeptide chain from t-RNAB. To from an unsprcified amino acidC. To terminate the masseage of a gene controlledD. To convert a sense DNA into non sense DNA |
| Answer» Correct Answer - C | |
| 253. |
Which may be attached with Adenine base in RNA-A. GuanineB. CytosineC. UracilD. Thymine |
| Answer» Correct Answer - C | |
| 254. |
Nirenberg synthesized an m-RNA containing 34 poly-Adenine (A-A-A-A-A-A-A----) and found a polyeptide formed of 11 poly-lysine this proved that genetic code for lysine wasA. one-adenineB. A-A doubletC. A-A-A tripletD. Many adenines |
| Answer» Correct Answer - C | |
| 255. |
Cri-du-chat syndrome in humans is caused byA. Fettilization of and XX egg by a normal Y-bearing spermB. Loss of half of the short arm of chromosome 5C. Loss of half of the long arm of chromosome 5D. Trisomy of `21^(st)` chromosome |
| Answer» Correct Answer - B | |
| 256. |
The first man made cereal Triticale has been developed from a cross betweenA. RayB. Pearl milletC. SugarcaneD. Barley |
| Answer» Correct Answer - A | |
| 257. |
A pedigree is show below for a disease that is autosomal recessive. The genetic make up of the first generatio :- A. `A A, aa`B. `Aa,Aa`C. `Aa,aa`D. `aa,aa` |
| Answer» Correct Answer - B | |
| 258. |
If distance between gene on chromosome is more, then gene shows :-A. Weak linkageB. Strong linkageC. Less crossingD. 1 & 3 both |
| Answer» Correct Answer - A | |
| 259. |
Dihybrid test cross ratio isA. `9:3:3:1`B. `1:1:1:1`C. `1:2:2:4:1:2:1:2:1`D. `3:1` |
| Answer» Correct Answer - B | |
| 260. |
A dihybrid plant with incomplete linkage on test corss may produce how many types of plants :-A. 2B. 4C. 8D. 1 |
| Answer» Correct Answer - B | |
| 261. |
Study the pedigree chart given below :- What does it show :-A. Inheritance of a recessive sex-linked disease like haemophiliaB. Inheritance of a sex-linked inborn error of metabolism like phenylketonuriaC. Inheritance of a condition like phenylketonuria as an autosomal recessive traitD. The pedigree chart is wrong as this is not possible |
| Answer» Correct Answer - C | |
| 262. |
In pedigree analysis symbol `Θ` used forA. Heterozygous for autosomal recessiveB. Affected individualsC. DeathD. Carrier for sex linked recessive |
| Answer» Correct Answer - D | |
| 263. |
Study the given pedigree carefully, the trait indicated is :- A. Autosomal recessiveB. X-linked recessiveC. Maternal inheritanceD. Paternal inheritance |
| Answer» Correct Answer - C | |
| 264. |
A single recessive trait which can express its effect should occur on :A. Any autosomeB. Any-charomosomeC. X-chromosome of femeleD. X-chromosome of male |
| Answer» Correct Answer - D | |
| 265. |
The pedigree shows the occurrence of abinism which is recessive trait. If person 4 is homozygous, the corrier for the trait is :- A. 1,4,5 and 6B. 5 and 6C. 1,2,and 3D. 1,.2,5 and 6 |
| Answer» Correct Answer - D | |
| 266. |
The nature of DNA replication is :-A. ConservationB. Non conservativeC. Semi-consurvativeD. Cyanobacteria |
| Answer» Correct Answer - C | |
| 267. |
Genetic code determines-A. Structural pattern of an organismB. Sequence of amino acid in protein chainC. Variation in offspringsD. constancy of morphological trait |
| Answer» Correct Answer - B | |
| 268. |
m- RNA is attached with-A. E.R.B. RibosomeC. NucleusD. Lysomes |
| Answer» Correct Answer - B | |
| 269. |
Semiconservation replication of DNA was given byA. Watson and CrickB. Bateson and PunnettC. Messelson and StahlD. Avery, McCarty and Mactleod |
| Answer» Correct Answer - A | |
| 270. |
Which of the following enzyme is used in DNA multiplication :-A. RNA polymeraseB. DNA endonucleaseC. ExonucleaseD. DNA Polymerase |
| Answer» Correct Answer - D | |
| 271. |
Sometimes the starting codon is GUG in place of AUG, GUG normally stands for :-A. ValineB. GlycineC. MethionineD. Tyosine |
| Answer» Correct Answer - A | |
| 272. |
Which of the following enzyme is used to join DNA fragments :A. TerminaseB. EndonucleaseC. LigaseD. DNA polymerase |
| Answer» Correct Answer - C | |
| 273. |
t-RNA attach to larger subunit of ribosomes with the help of which loop |
| Answer» Correct Answer - B | |
| 274. |
In three dimensional view the molecule of t-RNA isA. L-shapedB. S-shapedC. Y-shapedD. E-shaped |
| Answer» Correct Answer - C | |
| 275. |
In bacteria the codon AUG stands for -A. GlycineB. MethionineC. N-formyl methionineD. Alanine |
| Answer» Correct Answer - C | |
| 276. |
When two unrelated individuals or lines are crossed, the perfomance of `"F"_(1)` hybrid is often superior to both its parents. This phenomenon is called:A. HeterosisB. TransformationC. SplicingD. Metamorphosis |
| Answer» Correct Answer - A | |
| 277. |
Select the incorrect statement.A. DNA from single cell is enough to perfoem DNA fingerpringing analysisB. DNA fingerprinting has much wider applications in determining population & genetic diversities.C. The VNTR belongs to a class of satellite DNA referred as microsatellite.D. DNA fingerprint differs from individual to individual in a population expec in the case of monozygotic twins. |
| Answer» Correct Answer - C | |
| 278. |
In a cross between individuals homozygous for (a, b) and wild type `(+ +).` In this cross 700 out of 1000 individuals were of parental type. Then the distance between a and b is :-A. 70 map unitB. 35 map unitC. 30 map unitD. 15 map unit |
| Answer» Correct Answer - C | |
| 279. |
Assertion :- Inheritance is the basis of hearedity. Reason :- Inheritance is the process by which characters are passed on from parent to progeny.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - A | |
| 280. |
Assertion :- Human exploited the variatins that variations that were present naurally in the wild populations of plants & animals. Reason :- Variation is the degree by which progeny remembles from their parents.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - C | |
| 281. |
Assertin :- A true breeding line shows the the stable trait inheritance and expression for several generatins. Reason :- A true breeding line is one that have undergoes continuous cross pollination.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - C | |
| 282. |
Assertion :- In human beings, the inheritance of a particular trait is done by the study of fmily history. Reason :- Such an analysis of traits in several generations of family is called the pedigree analysis.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - B | |
| 283. |
What is an auxotropy :-A. A plant that respondy by bending towards the sunB. A mutant (organism) which has lost its ability to synthesize one or more essential compoundsC. An organism that depends on another organism for meeting its nutritional requirementsD. A plant that is able to synthesize its own carbohydrates |
| Answer» Correct Answer - B | |
| 284. |
Western blotting is used for the identification of :-A. DNAB. RNAC. ProteinD. All the above |
| Answer» Correct Answer - C | |
| 285. |
The technique of transferring DNA fargment separated on agarose gel to a synthetic membrane such as nitrocellulose is known asA. Nothern blottingB. Southern bollttingC. Western bolttingD. Dot boltting |
| Answer» Correct Answer - B | |
| 286. |
Genes which code for a pair of contrasting traits are known asA. AlleleB. Non alleleC. PseudoalleleD. Isoallele |
| Answer» Correct Answer - A | |
| 287. |
Assertion :- According to Mendelism, contrasting traits did not show any blending. Reason :- Only one of the parental traits was expressed in the `F(1)` while at the `F_(2)` stage both the tratis were expressed in the proportion of `1:1`A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - C | |
| 288. |
Which of the following prossess homogametic maleA. PlantsB. ManC. InsectD. Birds |
| Answer» Correct Answer - B | |
| 289. |
In which organism female in homogametic & also have one chromosomes more than male.A. BirdsB. DrosphilaC. ChicksD. Grasshopper |
| Answer» Correct Answer - D | |
| 290. |
Assertion :- Male is haploid and female is diploid in honey bea, Sex depends on paired and unpaired cheomsomes in every organism.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - C | |
| 291. |
Assertion :- Multiple alleles can be observed or studies in an organism, when its complete genome is known. Reason :- Multiple alleles is a rare phenomenon.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - D | |
| 292. |
Assertion :- In multiple alleles many alleles are present in a porpulation for a character. Reason :- All These alleles are present in an individual.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - C | |
| 293. |
Assertion :- Multiple alleles can be observed or studies in an organism, when its complete genome is known. Reason :- Occasionally, a single gene priduct may produce more than one effect.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - B | |
| 294. |
Assertion :- Autopolypoids have more than two copies of a single genome. Reason : Alloplypoids contain more than one type of genome each with atleast two copies.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are trur but Reason is not a correct explanation of the Assertion.C. If Assertion is True but the Reason is Flase.D. If both Assertion & Reason are false. |
| Answer» Correct Answer - B | |
| 295. |
Find out the correct match-A. `F_(1)` resembled either of the two parents-DominanceB. `F_(1)`resembled in between-incomlete dominanceC. `F_(1)` resembled both parent- Co-dominanceD. All are correct |
| Answer» Correct Answer - D | |
| 296. |
A white flowered mirabilis plant rr was crossed with red colour RR, If 120 plants are produced in `F_(2)` generation. The result would be :-A. 90 unidormly coloured & 30 whiteB. 90 Nonn-uniformaly coloured & 30 whiteC. 60 Non-uniformly coloured & 60 whiteD. All coloured & No white |
| Answer» Correct Answer - B | |
| 297. |
In Mirabilis jalapa when homozygous red flowered and white flowered plants are crossed, all `F_(1)` plants have pink coloured flowers. In `F_(2)` produced by selding of `F_(1)` plats, red, pink, white flowered plants would appear respectively in ratio of :-A. `1:1:2`B. `2:1:1`C. `1:0:1`D. `1:2:1` |
| Answer» Correct Answer - D | |
| 298. |
Which of the mutagen causes frame shift mutationA. 2 AminopurineB. ProflavineC. 5 BromouracilD. Methane sulphonates |
| Answer» Correct Answer - B | |
| 299. |
In a plant three dominat independently assorting gene A, B and C are essential for production of purple pigment. If any of the genes or all three genes are present in recessive condition then flower is coloures Raw material `overset(A) to X overset(B) to T overset(C) to Z` pigment A purple lant with genotype AABBCC crossed with a colourless plant with genotype aabbcc gibes purple `F_(1)` what proportion of coloured offspring in `F_(2)` -A. `27/64`B. `1/64`C. `9/64`D. `37/64` |
| Answer» Correct Answer - A | |
| 300. |
A plant with genotype AABCcDD is self polinated. Provided that the four genes are independently assorting, what proportion of the progeny will show the genotype AAbbccDD?A. `1/4`B. `1/16`C. `1/64`D. `1/256` |
| Answer» Correct Answer - B | |