InterviewSolution
Saved Bookmarks
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.
| 251. |
Barr body in mammals representA. All the heterochromatin in female cellsB. One of the two X-chromosomes in somatc cells of femalesC. All the heterochromatin in male and female cellsD. The Y-chromosome in somatic cells of male |
| Answer» Correct Answer - D | |
| 252. |
Which of the following is a sex-linked inheritance ?A. TBB. RicketsC. HaemophiliaD. Night blindness |
| Answer» Correct Answer - C | |
| 253. |
X-chromosome of female in a sex - linked inheritance case can be passed on to :A. Only female progenyB. Only male progenyC. Only in granddaughterD. Male and female progeny |
| Answer» Correct Answer - D | |
| 254. |
Women rarely experience sex-linked defects because they must be:A. carrierB. homozygousC. heterozygousD. develop immunity |
| Answer» Correct Answer - B | |
| 255. |
Which of these is a dominant factor ?A. AlbinismB. Rh factorC. HaemophiliaD. Colour blindness |
| Answer» Correct Answer - B | |
| 256. |
In gynandromorphs :A. All cells have XX genotypeB. All cells have XY genotypeC. all cells with genotype XXYD. some cells of body contain XX and some cells with genotype XY |
| Answer» Correct Answer - D | |
| 257. |
A human showing two barr bodies in the somatic cells would beA. only a male with one X-chromosomeB. only a female with two X-chromosomesC. only a male having two y-chromosomesD. either a male or a female havingthree X-chromosomes |
| Answer» Correct Answer - D | |
| 258. |
In a pedigree analysis, `square=0` respresentsA. siblingsB. affected parentsC. unrelated matingD. consanguineous matting |
| Answer» Correct Answer - D | |
| 259. |
Which of these is not a Mendian disorder ?A. HeamophiliaB. Cystic fibrosisC. colour blindnessD. Tuner synderome |
| Answer» Correct Answer - D | |
| 260. |
Identify a Mendelian disorder from the followingA. Down syndromeB. Turner syndromeC. phenylketonuriaD. Klinefelter syndrome |
| Answer» Correct Answer - C | |
| 261. |
Colour blindness is caused due toA. Recessive female chromosomeB. Dominant female chromosomeC. Dominant male chromosomeD. Linkage |
| Answer» Correct Answer - A | |
| 262. |
Which of these is not a Mendian disorder ?A. Cystic fibrosisB. Sickle-cell anaemiaC. Colour blindnessD. Haemophilia |
| Answer» Correct Answer - C | |
| 263. |
Excessive growth fo hair one the pinna is a feature found only in males because :A. The female sex hormone oestrogen supresses the character in femalesB. The gene responsible for the character is present on the Y-chromosomes onlyC. The gene responsible for the character is recessive in females and dominanr only in malesD. The character Is induced in males as males produce testosterone |
| Answer» Correct Answer - C | |
| 264. |
Albinism is :A. recessiveB. ploygenicC. dominantD. multiple allelism |
| Answer» Correct Answer - A | |
| 265. |
Albinism is a:A. deficiency diseaseB. sex-linked diseaseC. hereditary diseaseD. contagious disease |
| Answer» Correct Answer - C | |
| 266. |
Gene for colour blindness is located on:A. Y-chromosomeB. X-chromosomeC. 13th chromosomeD. 21st chromosome |
| Answer» Correct Answer - B | |
| 267. |
A man who carries a holandric gene will transmit it to:A. `1//2` his male offspringB. all his male offspringC. `1//2` his female offspringD. all his females offspring |
| Answer» Correct Answer - B | |
| 268. |
An example for holandric inheritance is :A. HaemophiliaB. Webbed toesC. Epidermolysis Turner syndromeD. Turner syndrome |
| Answer» Correct Answer - B | |
| 269. |
Gene for colour blindness is located on:A. Y-chromosomeB. 13th chromosomeC. X-chromosomeD. 21st chromosome |
| Answer» Correct Answer - D | |
| 270. |
Which of the following is a and inherited disorder ?A. AIDSB. GoiterC. LeprosyD. Albinism |
| Answer» Correct Answer - D | |
| 271. |
If a character is always transmitted directly from a father to all his sons and from their sons to all their sons,then which chromosome carries the gene for this character ?A. Autosome X-xhromosomeB. X chromosomeC. Y-chromosomeD. non of these |
| Answer» Correct Answer - C | |
| 272. |
Which one of the following is a genetically transmitted characterA. Colour blindnessB. HydrocephalusC. HaemophiliaD. All of these |
| Answer» Correct Answer - D | |
| 273. |
Gene for colour blindness is loacated on :A. X-chromosomeB. Y-chromosomeC. 21st chromosomeD. 13th chromosome |
| Answer» Correct Answer - A | |
| 274. |
Which of the following is an inherited disorder ?A. LeporsyB. GoiterC. AIDSD. Albinism |
| Answer» Correct Answer - D | |
| 275. |
Which one of the following is a genetically transmitted characterA. Colour blindnessB. HydrocephalusC. HaemophiliaD. all of the above |
| Answer» Correct Answer - D | |
| 276. |
Wilson detected the colour blindness disease inA. 1921B. 1911C. 1912D. 1914 |
| Answer» Correct Answer - B | |
| 277. |
Wilson deceted the colour blindness disease inA. 1921B. 1911C. 1912D. 1914 |
| Answer» Correct Answer - B | |
| 278. |
Whhich of the following is characterized by mental retardation,abnomal facial appearance with large ears and long face ?A. HaemophiliaB. colour blindnessC. Fragile X syndromeD. Ducheme muscular dystrophy |
| Answer» Correct Answer - C | |
| 279. |
Individuals with albinism lacks the dark pigment melanin inA. SkinB. HairC. IrisD. All of these |
| Answer» Correct Answer - D | |
| 280. |
The gene for diabetes mellitus isA. sex linked dominantB. sex linked recessiveC. auotsomal recessiveD. auotsomal dominant |
| Answer» Correct Answer - D | |
| 281. |
Three alleles namely `I^A,I^B` and I control the blood grouping in human beings.How many different genotypes are likely to be present in the human population ?A. 2B. 4C. 5D. 6 |
| Answer» Correct Answer - D | |
| 282. |
A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. Thus boyA. must be colour blindB. must have normal colour visionC. will be partially colour blind since he is herterozygous for the colour blind mutant alleleD. |
| Answer» Correct Answer - C | |
| 283. |
A woman with normal vision,but whose father was colour blind,marries a colour blind man.Suppose that the fourth child of this couple was a boy .This boy:A. must be colour blindB. must have normal colour visionC. may be colour blind or may be nornal visionD. will be partially colour blind since he is heterozygous for the colour blind mutant allele |
| Answer» Correct Answer - C | |
| 284. |
Which of the following most appropriately describes haemophilia ?A. Chromosomal disorderB. Dominant gene disorderC. Recessive gene disorderD. X-linked recessive gene disorder |
| Answer» Correct Answer - D | |
| 285. |
A colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blindA. 0.5B. 1C. nilD. 0.25 |
| Answer» Correct Answer - A | |
| 286. |
A heamophilic man marries a carries woman.Percentage of daughter becoming haemophilic shall be |
| Answer» Correct Answer - B | |
| 287. |
A woman with two genes for haemophilic and a gene for colour blindness on one of the X-chromosome marries a normal man.How will the progeny be ?A. Heamophilic and colour blind daughtersB. All sons and doughter haemophilic and colour blindC. 50% haemophilic daughter and 50% colour blind daughterD. Among sons 50% haemophilic and 50% haemophilic colour blind |
| Answer» Correct Answer - D | |
| 288. |
Haemophilia in man is due toA. Sex-linked inheritanceB. Sex-limited inheritanceC. Sex-influenced inheritanceD. Primary non-disjunction |
| Answer» Correct Answer - A | |
| 289. |
Colour blindness is due to defect inA. ConesB. RodsC. Both (a) and (b)D. Rhodopsin |
| Answer» Correct Answer - A | |
| 290. |
An injured person of unknown blood group needing immediate blood transfusion can be given the following blood group:A. AB. OC. BD. AB |
|
Answer» Correct Answer - B Because group O is the universal donor |
|
| 291. |
Antiserum is a serum containing :A. AntigensB. leucocytesC. antibodiesD. none of these |
|
Answer» Correct Answer - C Antiserum is a serum of animal of human containing antibodies againts a specific antigen |
|
| 292. |
In ABC blood groups, how many phenotypes are found?A. 1B. 4C. 6D. 8 |
| Answer» Correct Answer - B | |
| 293. |
The genotypes of blood groups A are:A. `I^(A)I^(B),I^(A)i`B. `I^(A)I^(A),I^(A)i`C. `ii,I^(A)i`D. none of these |
| Answer» Correct Answer - B | |
| 294. |
Marriage between close relatives should be avoided because it induces more:A. MutationsB. Multiple traitsC. Blood group abnormalitiesD. Recessive alleles to come together |
| Answer» Correct Answer - D | |
| 295. |
Which of the following should be avoided in biological marriages ?A. `A^+` boy and `A^+` girlB. `A^+` boy and `A^-` girlC. `O^+` boy and `O^+` girlD. `O^-` boy and `O^+` girl |
| Answer» Correct Answer - B | |
| 296. |
Human blood group are example of a :A. cloneB. grandualismC. polymorphismD. gradient of diploidy |
| Answer» Correct Answer - C | |
| 297. |
Mother homozygous B,and father is A.What will be the possible blood group in their progeny ?A. AB and B possibleB. AB and A possibelC. A and B possibleD. O possible |
| Answer» Correct Answer - A | |
| 298. |
A mother with blood group B type has a child with blood group type O .What is the possibilty of the genotypes of that mother and father ?A. `I^AI^A`(father) and `I^BI^O`(mother)B. `I^AI^B`(father) and `I^BI^B`(mother)C. `I^AI^O`(father) and `I^BI^O`(mother)D. `I^BI^O`(father) and `I^AI^O`(mother) |
| Answer» Correct Answer - C | |
| 299. |
Father has AB blood group,mother has B, which of the following will not be in their children?A. AB. BC. ABD. O |
| Answer» Correct Answer - B | |
| 300. |
The longest gene of human body is present on chromosomeA. X-chromosomeB. Y-chromosomeC. AutosomesD. None of these |
| Answer» Correct Answer - A | |