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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.
| 201. |
Which of thefollowing is not a symptom of alkaptonuria?A. Darkening of cartilage of earB. Darkening of urineC. Deposition of alkapton causing arthritisD. Convolusions and tremors |
| Answer» Correct Answer - D | |
| 202. |
The body parts affected by alkaptonuria areA. CartilagesB. Capsules of jointsC. Ligaments and tendonsD. All of these |
| Answer» Correct Answer - D | |
| 203. |
The alkaptonuria is due to deficiency of enzymeA. TyrosinaseB. OxidaseC. PhenyloxidaseD. Hydroxylase |
| Answer» Correct Answer - A | |
| 204. |
Females seldom become bald as they lackA. The gene for baldnessB. Y-chromosomeC. Male sex hormoneD. All of these |
| Answer» Correct Answer - C | |
| 205. |
Alkaptonuria in man is caused due toA. Absence of malanin pigmentB. Accumulation of phenyl pyruvic acidC. Accumulation of homogentisic acidD. All of the above |
| Answer» Correct Answer - C | |
| 206. |
Human Y- chromosomeo contains……… genes (approximately)A. 50000B. 10000C. 17D. Indefinite number |
| Answer» Correct Answer - C | |
| 207. |
Which following pair of diseases is caused by two genes located on human X-chomosome ?A. Colour blindness and phenylketonuriaB. Colour blindness and haemophiliaC. Colour blindness and albinismD. Colour blindness and hypertrichosis |
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Answer» Correct Answer - B Colour blindness and haemophilia are caused by two genes located on X-chromosome, both are X-linked recessive traits |
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| 208. |
If father shown normal gentype and mother shown a carrier trait for haemophilia then :A. Female offspring has probability of 50% to have active diseaseB. All the female offspring will be normalC. All the female offspring will be carriersD. A male offspring has 50% chances of active disease |
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Answer» Correct Answer - D Haemophilia is an X-linked recessive disease and is always transmotted from mother to son. Thus , if father shows normal genotype and mother shows a carrier trait for haemophilia, Then the male offspring has 50% chances off active disease |
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| 209. |
Assertion Mother may be a a carrier for haemophilia Raeson Holandric genes are found on Y-chromosomeA. Both Assertion and Reason are true and reason is the correct explanation of assertionB. Both Assertion and Reason are true, but Reason is not the correct explanation of AssertionC. Assertion is true, but Reason is falseD. Assertion is false, but Reason is true |
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Answer» Correct Answer - C Females have two X-chromosome (XX). They may be carrier for haemophilic gene while males have only single X-chromosome (XY), so cannot be a carrier for haemophilic gene |
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| 210. |
First determination of the human chrosme number was made by :A. PainterB. FlemmingC. WiniwarterD. Montgomery |
| Answer» Correct Answer - C | |
| 211. |
In which of the following the sex chromosome were discovered for the first time in plants?A. PistiaB. PinusC. NephrolepisD. Sphaercarpus |
| Answer» Correct Answer - D | |
| 212. |
The correct human chromosome number was first reported by:A. Tjio and LevanB. Ford and HamertonC. Mjorgan and BridegeD. Painter and Flemming |
| Answer» Correct Answer - A | |
| 213. |
Human Y-chromosome was discovered by:A. WilsonB. PainterC. BridgesD. Morgan |
| Answer» Correct Answer - B | |
| 214. |
The number of chromosomes in human beings is:A. 44B. 48C. 50D. 46 |
| Answer» Correct Answer - D | |
| 215. |
The correct human chromosome number of male is :A. 48 autosomes + XB. 22 pairs of autosomes +X+YC. 44 autosomes and 4 sex chromosomesD. 21 pairs of autonomes and 2 sex chromosomes |
| Answer» Correct Answer - B | |
| 216. |
The number of autosomes in human beings is :A. 22 pairsB. 23 pairsC. 33 pairsD. 46 pairs |
| Answer» Correct Answer - A | |
| 217. |
The Number of autosomes in normal human sperm is :A. 44B. 23C. 46D. 22 |
| Answer» Correct Answer - D | |
| 218. |
The number of autosomes in a normal human cell is :A. 45B. 44C. 46D. 48 |
| Answer» Correct Answer - B | |
| 219. |
As per denver convention, the autosomes of man have been classified in…….. GroupsA. 7B. 4C. 3D. 16 |
| Answer» Correct Answer - A | |
| 220. |
Haemophilia is caused by :A. X-chromosome in maleB. Y-chromosome in maleC. X-chromosome in femaleD. X-chromosome in boht male and female |
| Answer» Correct Answer - D | |
| 221. |
A gene located on Y-chromosome and hence transmitted from fathero to son isA. Sex-linked geneB. Sex-limited geneC. Holandric geneD. Duplicate gene |
| Answer» Correct Answer - C | |
| 222. |
In recent years,nucleotidesequence of DNA and Y-chromosome were considered for the study of human evolution, becauseA. Their structureis known in greater detailB. They can be studied from the samples of fossil remainsC. They are small and therfore easy to studyD. They are uniparental in origin and do not take part in recombination |
| Answer» Correct Answer - D | |
| 223. |
Who was the first person to study human genetics?A. MendelB. sir Archibald GarrodC. DarwinD. Lamarck |
| Answer» Correct Answer - B | |
| 224. |
Improvement of the human race by improving the environmental condition is :A. EugenicsB. EuthenicsC. EuphenicsD. None of these |
| Answer» Correct Answer - B | |
| 225. |
Down syndrome is due to :A. linkageB. duplicationC. crossing overD. nondisjuction of chromosome |
| Answer» Correct Answer - D | |
| 226. |
Whose number of sex chromosome are normalA. Super femaleB. Down syndromeC. Turner syndromeD. Klinefelter sydrome |
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Answer» Correct Answer - B Because Down syndrome is a an autosome abnormailty. |
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| 227. |
Down syndrome is due to chromosome number :A. increase in 21st pair of autosomesB. decrease in 21st pair of autosomesC. increase in 18st pair of autosomeD. decrease in 18st pair of autosomes |
| Answer» Correct Answer - A | |
| 228. |
How many chromosmes are there in a spermetid of man ?A. 24B. 23C. 48D. 46 |
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Answer» Correct Answer - B The spermatids are formed after the completion of maturation division spermatogenesis,hene contain n number of chromosome ,ie,23 |
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| 229. |
Trisomy of chromosome number 21 in man causes:A. ThalassemiaB. Down syndromeC. Turner syndromeD. Sickle-cell anaemia |
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Answer» Correct Answer - B The facial features of Down syndrome resemble to mongol an Asian ehtnic group |
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| 230. |
Down syndrome is due to :A. extra Y- chromosomeB. extra sex chromosomeC. extra 21st chromosomeD. deficient sex chromosome |
| Answer» Correct Answer - C | |
| 231. |
Which of the following is genetically dominant in human being ?A. AlbinismB. Colour blindnessC. Blood group-OD. Rh+ blood group |
| Answer» Correct Answer - D | |
| 232. |
Mongolism is also knows as :A. Down syndromeB. Tuner syndromeC. Klinefelter syndromeD. Hypothalamic syndrome |
| Answer» Correct Answer - A | |
| 233. |
Match list I and list II and select the correct answer using the codes given blow the lists.ltBRgt A. A=2,B=5,C=1,D=3B. A=2,B=1,C=3,D=4C. A=5,B=2,C=4,D=3D. A=3,B=5,C=1,D=4 |
| Answer» Correct Answer - A | |
| 234. |
Sickle -cell anaemia is:A. X-linked recessive inheritanceB. X-linked dominantC. Autosomal dominant inheritanceD. Autosomal recessive inheritance |
| Answer» Correct Answer - D | |
| 235. |
The genotype of a person with sickle-cell trait is :A. `Hb^AHb^A`B. `Hb^SHb^S`C. `Hb^SHb^A`D. Non of these |
| Answer» Correct Answer - C | |
| 236. |
Sickle cell anaemia isA. blood cellsB. bone cellsC. sex chromosomeD. autosomes |
| Answer» Correct Answer - D | |
| 237. |
If somatic cells of a human male contain single barrbody, the genetic composition of the person would be or The genotype of a boy having sexual characters of a girl isA. XOB. XXYC. XYYD. XXXY |
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Answer» Correct Answer - B Klinefelter syndrome (XXY) possesses a single Barr Body though it has a male phenotype. |
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| 238. |
Dysgenics is the study ofA. Evolution in manB. Improving human raceC. Chromosomal mutationsD. Undesirable traits of the human race and the gene causing them |
| Answer» Correct Answer - D | |
| 239. |
Presons who are colour blind cannot distingused ?A. red and greenB. white and blueC. black and whiteD. yellow and white |
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Answer» Correct Answer - A Red-green colour blindness is the most common sex-linked colour blindness |
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| 240. |
When the blood group of a fahter and mother respectively are O and A, then the blood group of their child will be :A. ABB. A and OC. AD. all types |
| Answer» Correct Answer - B | |
| 241. |
Which of the following genotypes does notproduce any sugar polymer on the surface of the RBCA. `I^AI^A`B. `I^B_(i)`C. `I^AI^B`D. I I |
| Answer» Correct Answer - D | |
| 242. |
What is true of boold group B ?A. The person can from antibody BB. The person cannot from antibody BC. The person cannot donate blood to AB groupD. The person cannot be given blood of O group |
| Answer» Correct Answer - B | |
| 243. |
In which blood group,antibodies are absent ?A. AB. BC. OD. AB |
| Answer» Correct Answer - D | |
| 244. |
Which of the following blood group is known as universal donar ?A. A groupB. `B^+` groupC. `B^-` groupD. O group |
| Answer» Correct Answer - D | |
| 245. |
During blood typing agglutination indicates that the :A. RBCs carry certain antigensB. RBCs carry certain antibodiesC. plasma contains certain antigensD. plasma contain certain antibodies |
| Answer» Correct Answer - A | |
| 246. |
On which chromosome set of 3 multiple alleles for four blood types are present?A. 9B. 13C. 18D. 20 |
| Answer» Correct Answer - A | |
| 247. |
Genetic counsellors can identify heterozygous individuals byA. height of individualsB. colour of individualsC. screening proceduresD. all of the above |
| Answer» Correct Answer - C | |
| 248. |
Tuner syndrome is an example of :A. bisomyB. trisomyC. monosomyD. polyploidy |
| Answer» Correct Answer - C | |
| 249. |
Haemophilia is :A. Z-linkedB. X-linkedC. Y-linkedD. Autosomal |
| Answer» Correct Answer - B | |
| 250. |
Haemophilia was first studied by :A. HornerB. HaldanceC. JohannsenD. John Cotto |
| Answer» Correct Answer - D | |