InterviewSolution
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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.
| 101. |
The chromosome that determines the male sex in human is called :A. X-chromosomeB. Y-chromosomeC. W-chromosomeD. Z-chromosome |
| Answer» Correct Answer - B | |
| 102. |
Human Y-chromosome is :A. telocentricB. acrocentricC. metacentricD. submetacentric |
| Answer» Correct Answer - B | |
| 103. |
In humans,sex determination the key factor is :A. Y-chromosomeB. X-chromosomeC. both(a) and (b)D. none of these |
| Answer» Correct Answer - A | |
| 104. |
XY sex chromosomes were discovered by :A. Nettie stevensB. MJD whiteC. Robert BrownD. Mendel |
| Answer» Correct Answer - A | |
| 105. |
The male child is born when sperm with,A. X fertilise the ovumB. Y fertilises the ovumC. Both X and Y fertilise with ovumD. None of the above |
| Answer» Correct Answer - B | |
| 106. |
In most animals,sex of the offspring is established during :A. cleavageB. fertilizationC. crossing overD. embryo formation |
| Answer» Correct Answer - B | |
| 107. |
A cross between two tall plants reseulted in offspring having few dwarf plants. What would be the gentypes of both the parents ?A. TT and TTB. Tt and ttC. TT and TtD. Tt and Tt |
| Answer» Correct Answer - D | |
| 108. |
A man ,who father is colour blind , marries a lady who is daughter of a colour blind man.The offspring will be :A. all normalB. all colour blindC. all sons colour bindD. some sons colour blind and some normal |
| Answer» Correct Answer - D | |
| 109. |
In most animals,sex of the offspring is established during :A. CleavageB. FertilisationC. Crossing overD. Embryo formation |
| Answer» Correct Answer - B | |
| 110. |
The sex determination pattern in honeybee is calledA. gametogonyB. haplo-diploidyC. female haploidyD. gametic diploidy |
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Answer» Correct Answer - B In honeybee,males (drones) are haploid developed by paerthenogenesis and females are diploid. |
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| 111. |
A colour blind daughter is born to :A. Carrier mother and normal fatherB. Normal mother and colour blind fatherC. Carrier mother and colour blind fatherD. Colour blind mother and normal father |
| Answer» Correct Answer - C | |
| 112. |
Carrier female marries a normal visioned male. How many daughter are colour blind carries ?A. ZeroB. 0.25C. 0.5D. 1 |
| Answer» Correct Answer - C | |
| 113. |
How can a female be colour blind ?A. Both parents are normalB. father normal,mother carrierC. father colour blind,mother normalD. father colour blind,mother carrier |
| Answer» Correct Answer - D | |
| 114. |
How can a female be colour blind ?A. Both parents normalB. Father normal, mother carrierC. Father colourblind, mother carrierD. Father colourblind , mather normal |
| Answer» Correct Answer - C | |
| 115. |
If a normal woman marries a colour blind man :A. All daughters are normal, all sons are haemophilicB. All daughters are normal, half the sons are colour blindC. All children are normalD. All children are colourblind |
| Answer» Correct Answer - C | |
| 116. |
Winch blood can be given to a person of AB blood groupsA. O onlyB. A or BC. AB onlyD. all of these |
| Answer» Correct Answer - D | |
| 117. |
A person of blood A can accept blood safely from:A. A onlyB. A and ABC. O and AD. O and AB |
| Answer» Correct Answer - C | |
| 118. |
A person with type A blood group may safely receive a transfusion ofA. Type ABB. Type AB and type OC. Type AB and type ABD. Type A and type O |
| Answer» Correct Answer - D | |
| 119. |
Which one of the following blood group person cannot donate blood to orhers ?A. AB blood groupB. O blood groupC. A blood groupD. B blood group |
| Answer» Correct Answer - A | |
| 120. |
Which of the following blood groups is a universal recipent in the blood transfusion ?A. Group OB. Group AC. Group BD. Group AB |
| Answer» Correct Answer - D | |
| 121. |
The enzyme tyrosinase is essential for the synthesis of pigmentA. DihydroxyphenylalanineB. CaroteneC. XanthoaphyllD. Rhodopsin |
| Answer» Correct Answer - A | |
| 122. |
The absense of pigment in the eyes, hair and skin is reffered to asA. AlbinismB. Colour blindnessC. Night blindnessD. Phenylketonuria |
| Answer» Correct Answer - A | |
| 123. |
The correct path way for the synthesis of skin pigment is :A. `"tyrosine"rarr"dopa"rarr"melanin"rarr"dopaquinone" `B. `"tyrosine"rarr"melanin"rarr"dopaquinone"rarr"dopa" `C. `"tyrosine"rarr"dopa"rarr"dopaquinone"rarr"melanin"`D. `"dopa"rarr "tyrosine"rarr"dopaquinone"rarr"melanin"` |
| Answer» Correct Answer - C | |
| 124. |
Thalassemia was discovered byA. EdwardB. PatauC. Cooley chainsD. None of these |
| Answer» Correct Answer - C | |
| 125. |
According to genic balance theory,X/A=1.5 Drosophila individual will be :A. maleB. femaleC. intersexD. super female |
| Answer» Correct Answer - D | |
| 126. |
When an animal has both the characters of male and female,it is called:A. intersexB. super maleC. super femaleD. gynandromorph |
| Answer» Correct Answer - D | |
| 127. |
A fruitfly exhibitingA. gynanderB. hemizygousC. gynandromorphD. heterozygous |
| Answer» Correct Answer - C | |
| 128. |
Gynandromorpha are:A. half male and half femaleB. male with female characterC. female with male characterD. none of the above |
| Answer» Correct Answer - A | |
| 129. |
Nature of identical twins is :A. DizygoticB. PolyzygoticC. MonozygoticD. Amphizygotic |
| Answer» Correct Answer - C | |
| 130. |
A colour blind girl is rare because she will be only when :A. her mother is colour blind and faher has normal visionB. her father and maternal grandfather were colour blindC. her mother and maternal grandfather were colour blindD. parents have normal vision but grandparents were colour blind |
| Answer» Correct Answer - B | |
| 131. |
Gynandromorphism in certain flies is the result of :A. non disjuction of X-chromosomeB. repeated and sudden changes in both X-and Y-chromo-somesC. mis division of chromosome whereby one of the X-chromosome gets lostD. failure of X and Y-chromosome to seprate during gamete formation at the first zygotic division |
| Answer» Correct Answer - A | |
| 132. |
The most rare blood group-AB was discovered in 1902 byA. LandsteinerB. De castelloC. SturliD. Both (b)and (c) |
| Answer» Correct Answer - D | |
| 133. |
Antigen A and B are…….. In natureA. ProteinaceousB. GlycopolysaccharidesC. MucopolysaccharidesD. Glycoproteins |
| Answer» Correct Answer - D | |
| 134. |
polydactyly in man is due to :A. autosomal doinant geneB. autosomal recessive geneC. sex -linked dominant geneD. sex-linked recessive gene |
| Answer» Correct Answer - A | |
| 135. |
One of the following is not true of haemophilia:A. Royal diseaseB. Bleeders diseaseC. X-linked disorderD. Y-linked disorder |
| Answer» Correct Answer - D | |
| 136. |
A haemophiliac woman marries a normal man then :A. all the childern will be normlaB. half girl will be haemophiliacC. all the sons will be haemophiliacD. all the girl will be haemophiliac |
| Answer» Correct Answer - C | |
| 137. |
Eugenics is the study of :A. evolutionB. developmentC. human geneticsD. modern genetics |
| Answer» Correct Answer - C | |
| 138. |
Eugenics pertains to :A. study of human geneticsB. controlling size of a human familyC. improving of mankind by improving his heredityD. preserving human sperm for artificial insemination |
| Answer» Correct Answer - C | |
| 139. |
The term eugenics was coined by :A. H.C UreyB. Francis GaltonC. Joshua LederbergD. Thomas Hunt Morgan |
| Answer» Correct Answer - B | |
| 140. |
The inability to Visualise red colouration is calledA. DeuteranopiaB. TritanopiaC. DichromatismD. Protanopia |
| Answer» Correct Answer - D | |
| 141. |
The ezyme which changes amino acid phenylalanine to amino acid tyrosine isA. TyrosinaseB. Phenylalanine hydroxylaseC. PencillaseD. None of these |
| Answer» Correct Answer - B | |
| 142. |
Haemophilia is rare in woman because:A. they only one X-chromosomeB. it is recessive autosomal gene disorderC. they are more recessive to this disorderD. woman ought to be homozygous for this gene |
| Answer» Correct Answer - D | |
| 143. |
Congenital colour blindness is also know asA. daltonismB. dichromatismC. protanopiaD. Both (A)and (B) |
| Answer» Correct Answer - D | |
| 144. |
Carriers of colour blindness are :A. menB. womenC. Both (a) and (B)D. None of these |
| Answer» Correct Answer - B | |
| 145. |
when was the disease colour blindness was detected?A. 1965B. 1911C. 1988D. 1885 |
| Answer» Correct Answer - A | |
| 146. |
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. AutosomeB. X-chromosomeC. Y-chromosomeD. None of these |
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Answer» Correct Answer - C If a character is transmitted from father to his sons and then to grandson only, It means it is located on Y-chromosome (inheritance of Y-linked genes) |
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| 147. |
Albinism is a congenital disorder resulting from the lack of the enzyme:A. catalaseB. melanaseC. tyrosinaseD. xanthine oxidase |
| Answer» Correct Answer - C | |
| 148. |
In albinism the absence of the following pigment makes the skin and hair very light coloured :A. melaninB. caroteneC. chlorophyllD. haemoglobin |
| Answer» Correct Answer - A | |
| 149. |
Albinism in man has been reported in :A. NegroesB. EuropeansC. Both Negroes and EuropeansD. None of the above |
| Answer» Correct Answer - C | |
| 150. |
Lyon hypothesis deals withA. Centromere positionB. genetic compatibilityC. number of Barr bodiesD. genetic incompatibility |
| Answer» Correct Answer - C | |