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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.
301. |
In case of taster and non-taster human beings T is for dominance & t is for recessive gene. Which of the following would not be able to taste PTC :-A. TTB. TtC. ttD. None of these |
Answer» Correct Answer - C | |
302. |
The full form of HGP isA. Human Genome ProjectB. Human Gene ProfileC. Horse Genome ProjectD. None of the above |
Answer» Correct Answer - A | |
303. |
The smallest gene present in human beings isA. Duchenne muscular dystrophyB. Testis determining factorC. Junked geneD. Repeated genes |
Answer» Correct Answer - B | |
304. |
The number of base pairs in dystrophin gene of human body areA. 20000 kilo base pairsB. 24000 kilo base pairsC. 30000 kilo base pairsD. 35000 kilo base pairs |
Answer» Correct Answer - B | |
305. |
Which of the following contitions is related to haemophilia ?A. A recessive gene responsible present in the X-chromosomeB. A dominant gene responsible present in the X-chromosomeC. A responsible dominant gene responsible present in the Y-chromosomeD. A responsible dominant gene responsible present in the autosomal chromosome |
Answer» Correct Answer - A | |
306. |
Haemophilia is related toA. AlbinismB. Sickle-cell anaemiaC. Colour blindnessD. Thalassemia |
Answer» Correct Answer - C Haemophilia is related to colour blindness both are X-linked recessive disease, The gene for both is found on X-chromosome only. Albinism, sickle-cell anaemia and thalassemia are autosomal diseases |
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307. |
Haemophilia is related to which of the following ?A. PolioB. CataractC. TumourD. Colour blindness |
Answer» Correct Answer - D | |
308. |
The incorrect statement with regard to haemophilia isA. It is a recessive diseaseB. it is a dominant diseaseC. it is a sex-linked diseaseD. A single protien involved in the clotting of blood is affected |
Answer» Correct Answer - B | |
309. |
Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albinoA. 0.25B. 0.5C. 0.75D. 1 |
Answer» Correct Answer - A | |
310. |
In human red-green colour blindness is recessive and sex-linked, while albinism is recessive and autosomal. A marriage between two homozygous parents, a normal visioned albino woman and a colourblind and normally pigmented man will produce childrenA. Who are all phenotypically normal visioned and have normal pigmentationB. Half of whom are colourblind and other half having normal vision and all of them having normal pigmentationC. All of whom have normal vision, but half of whom are albino and the other half with normal pigmentationD. Of four categories normal visioned pigmented, normal visioned albino, colourblind, pigment, colourblind, albino, all in equal proportions |
Answer» Correct Answer - A | |
311. |
The number of autosome in human prilmary spermatocyte is :A. 46B. 44C. 23D. 22 |
Answer» Correct Answer - B | |
312. |
Monozygotic twins are born becauseA. Two sperms fertilise four ovaB. Two sperms fertilise two ovaC. Two blastomers separate after first cleavageD. None of the above |
Answer» Correct Answer - C | |
313. |
Monozygotic twins are formed when:A. no cleavage takes place in the zygoteB. two ova are fertilized at the same timeC. incomplete cleavage of zygote takes placeD. the cells formed from first cleavage of zygote become independent |
Answer» Correct Answer - D | |
314. |
Separation of the twins in some cases is incomplete such a twin isA. FraternalB. SiameseC. IdenticalD. None of these |
Answer» Correct Answer - B | |
315. |
Duchenne muscular dystrophy is caused by the presence of :A. An extra 21st chromosomeB. An extra 18th chromosomeC. A defective gene in X-chromosomeD. Two X-chromosomes and one Y-chromosome in an individual |
Answer» Correct Answer - C | |
316. |
Muscular dystrophy is:A. dominantB. recessiveC. sex-linked dominantD. sex-linked recessive |
Answer» Correct Answer - D | |
317. |
From the pedigree of a family given below, it is clear that trait is inherited as dominant autosomal trait. What will the genotype mother and father?A. Mother is aa and father is AaB. Father is AA and mother is aaC. Father is Aa and mother is AaD. None of the above |
Answer» Correct Answer - A | |
318. |
Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character ? A. The female present is herterozygousB. The parents could not have had a normal daughter for this characterC. The trait under study could not be colour blindnessD. The male parent is homozygous doimnant |
Answer» Correct Answer - A | |
319. |
Study the pedigree chart of a certain family given below.It is related to sickle cell anaemia The trait traced in above pedigree chart is :A. Sex-linked dominantB. Autosomal dominantC. Autosomal recessiveD. Sex-linked recessive |
Answer» Correct Answer - C | |
320. |
Select the correct option of the traits studied by Mendel in Garden pea: `{:(,(a),"Stem height ",(i),"Violet/white"),(,(b),"Flower colour",(ii),"Axial/terminal"),(,(b),"Flower position ",(ii),"Green/yellow"),(,(b),"Pod shape",(ii),"Tall/dwarf "),(," ",,(v),"Inflated/constricted"):}`A. `{:(" "(a)"",(b),""(c),""(d)""),((a)(iv)"",(i)"",(ii)"",(iii)""):}`B. `{:(" "(a)"",(b),""(c),""(d)""),((b)(iv)"",(ii)"",(v)"",(i)""):}`C. `{:(" "(a)"",(b),""(c),""(d)""),((c)(iv)"",(i)"",(ii)"",(v)""):}`D. `{:(" "(a)"",(b),""(c),""(d)""),((d)(iii)"",(iv)"",(ii)"",(v)""):}` |
Answer» Correct Answer - C | |
321. |
Four symbols (A,B,C and D) used in human pedigree analysis are given below.Correctly identify by selecting the option: A. A,Male,B.Sex unspecified C.Female: D. Consaguineous mating .B. A. male,B. Female ,C.Sex unspecified, D. Consanguineous matingC. A.Female,B Male C.Sex unspecified, D.Consanguineous mating.D. A male ,B.Female, C.Consanguineous mating ,D.Sex unspecified. |
Answer» Correct Answer - A | |
322. |
Unfertilzed egg of human contains :A. XX-chromosomeB. one X-chromosomeC. one Y-chromosomeD. X-and Y-chromosome |
Answer» Correct Answer - B | |
323. |
In humans most number of genes are located on chromosomeA. 1B. 6C. 21D. X |
Answer» Correct Answer - A | |
324. |
Alzhimer disease in humans is associated with the deficiency ofA. dopamineB. glutamic acidC. acetycholineD. gamma aminobutyric acid (GABA) |
Answer» Correct Answer - C | |
325. |
When released from ovary,humans egg contains:A. XY-chromosomesB. one Y-chromosomeC. one X-chromosomeD. Two X-chromosomes |
Answer» Correct Answer - C | |
326. |
In man ,which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes ?A. 22 pairs +Y femalesB. 22 pairs + XXY - MalesC. 22 pairs + XX - FemalesD. 22 pairs + XXXY - Females |
Answer» Correct Answer - B | |
327. |
In man ,which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes ?A. 22 pairs + XXY - MalesB. 22 pairs + XX - FemalesC. 22 pairs + XXXY - FemalesD. 22 pairs + Y - Females |
Answer» Correct Answer - A | |
328. |
In man,which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromo-somes ?A. 22 pairs + XXY - MalesB. 22 pairs + XX - FemalesC. 22 pairs + XXXY - FemalesD. 22 pairs + Y - Females |
Answer» Correct Answer - A | |
329. |
A certain road accident patien with unknown blood group needs immediate blood transfusion. His one docter friend at once offers his blood .What was the blood group of the doner ?A. Blood group BB. Blood group ABC. Blood group AD. Blood group O |
Answer» Correct Answer - D | |
330. |
Fraternal twins are also known asA. Non-identical twinsB. Identical twinsC. Maternal twinsD. None of these |
Answer» Correct Answer - A | |
331. |
A phentypically normal couple has two normal daughters and a son affected with haemophilia.What is the probability that both the daughter are heterozygous carries ? |
Answer» Correct Answer - D | |
332. |
In sickle cell anaemia, the sequence of amino acid from first to seventh position of `beta`-chain of haemoglobin S (HbS) isA. His, Leu, Thr, Pro, Glu, Val, ValB. Val, His, Leu, Thr, Pro, Glu,GluC. Thr, His, Pro, Val, Pro, Val, GluD. Glu, His, Leu, Pro, Val, Glu, Glu |
Answer» Correct Answer - C In sickle-cell anaemia, the correct seqence of amino acid from 1-7th position of the B-chain haemoglobins is Val - His - Leu - Thr - Pro - Val - Glu 1 2 3 4 5 6 7 It occurs when amino acid glutamine (Glu)at position 6 is replaced by amino acid valine (Val) |
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333. |
One way of determining sex-linked inheritance is :A. Sons and daughters resemble mothersB. Sons and daughters resemble fathersC. Sons resemble mother and daughters their fatherD. Sons resemble father and daughters their mother |
Answer» Correct Answer - C | |
334. |
Autosomal mutant allele HbS causesA. AlbinismB. ThalassemiaC. Sickle-cell anaemiaD. Agammaglobulinemi |
Answer» Correct Answer - C | |
335. |
Match list I and list II and select the correct answer using the codes given blow the lists.ltBRgt A. A=4,B=1,C=5B. A=5,B=3,C=2C. A=5,B=1,C=3D. A=4,B=3,C=2 |
Answer» Correct Answer - A | |
336. |
A single recessive trait which can express its effect should occur on :A. Any autosomeB. Any chromosomeC. X-chromosome of maleD. X-chromosome of female |
Answer» Correct Answer - C Recessive gene can express only in homozygous condition. |
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337. |
Autosomal mutant allele `Hb^s` causes:A. AlbinismB. ThalassemiaC. Sickle-cell diseaseD. Agammaglobulinaemia |
Answer» Correct Answer - C | |
338. |
A single recessive allele will produce its phenotypic effect when it occurs onA. An autosomeB. X-chromosome of femaleC. Y-chromosomeD. X-chromosome o male |
Answer» Correct Answer - B | |
339. |
What will the phenotypic sex of the following organisms on the basis of the sex chromosomal constitution indicated againts each organism ? select the correct answer using the following codes.A. `{:(,"Male" ,"Female"),(,"A and C" , "B and D"):}`B. `{:(,"Male" ,"Female"),(,"C and D" , "A and B"):}`C. `{:(,"Male" ,"Female"),(,"B and D" , "A and C"):}`D. `{:(,"Male" ,"Female"),(,"B and C" , "A and D"):}` |
Answer» Correct Answer - D | |
340. |
What will be the phenotypic sex of the following organisms on the basis of the sex chromosomal constitution indicated againts each organism? Organism constitution (i) Human being (ii) Drosohila (iii) Human being (iv) Drosophila Sex chromosome Xo XO XXY XXY select the correct answer using the codes givenl belowA. Male (a) I and III Female II and IvB. III and IV I and IIC. II and IV I and IIID. II and III I and IV |
Answer» Correct Answer - D | |
341. |
Sex -linked chromosomes of man areA. Present on autosomesB. Present on X-chromosomeC. Present on short arms (P) of Y-chromosomeD. Long arm (q) present on Y-chromosome |
Answer» Correct Answer - B | |
342. |
Chromosomal mechanism of sex determiation polulry is diagrammatically given below Select the correct statement form the option :A. Hen possesses a pair of similar sex chromosomes.B. Cock exhibits heterogametyC. A cock has a pair of silimar sex chromosomes.D. Sex is determined at the time of fertilization by the type of ovum. |
Answer» Correct Answer - D | |
343. |
In man ,chromosomes are:A. metacentircB. acrocentricC. submetacenteicD. all of these |
Answer» Correct Answer - D | |
344. |
To make a karyotype, chromosomes are photographed during :A. interphaseB. fertilizationC. mitotic metaphaseD. meiotic metaphase |
Answer» Correct Answer - C | |
345. |
Which one of following statement is incorrect ?A. Cromosomal abrrations are commonly observed in cancer cells.B. Grasshopper is an examle of XX:XY type of sex determination.C. Deletions and insertion of base pairs of DNA,causes frame-shift mutations.D. Human females produce only one type of ovum with an X-chromosome. |
Answer» Correct Answer - B | |
346. |
How many group of chromosomes are found in human karyotype ?A. 5B. 6C. 10D. 7 |
Answer» Correct Answer - D Group A to G (7) |
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347. |
Who discovered Rh factorA. HuxleyB. LandsteinerC. WienerD. Landsteiner and Wiener |
Answer» Correct Answer - D | |
348. |
Testes develop fromA. Medulla of embryonic gonadsB. Cortex of embryonic gonadsC. None of the aboveD. |
Answer» Correct Answer - A | |
349. |
What is the shape of chromosome 4-5 in human karyotype?A. MetacentricB. SubmetacentricC. AacrocentricD. Telocentric |
Answer» Correct Answer - B | |
350. |
Pattern baldness, moustanches and beard in human males are examples of :A. sex-linked traitsB. sex-limited traitsC. sex-determing traitsD. sex-differentiating traits |
Answer» Correct Answer - B | |