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.
| 51. |
Person having genotype `I^(A) I^(B)` would show the blood group as AB. Thus is because ofA. PleiotropyB. CodominanceC. SegregationD. Incomplete dominance |
| Answer» Correct Answer - B | |
| 52. |
Which of the following is not a non-allelic gene interaction?A. EpistasisB. Duplicate geneC. Incomplete dominanceD. Complementary gene |
| Answer» Correct Answer - C | |
| 53. |
Pleiotrophy occurs when a gene hasA. A complementary gene elsewhereB. A small effect on one traitC. Reversible effects on the phenotype, depending on ageD. many effects on the phenotype |
| Answer» Correct Answer - D | |
| 54. |
In humans, MN blood group is an example ofA. codominanceB. A dihybridC. OpleiotropyD. Incomplete dominance |
| Answer» Correct Answer - A | |
| 55. |
The `F_(2)` -generation of a crossA. Has a phenotypic ratio of 3 : 1B. Is the result of the self-fertilisation or crossing of `F_(1)` individualsC. Can be used to determine the genotype of individuals with the dominant phenotypeD. Has a phenotypic ratio that equals its genotypic ratio |
| Answer» Correct Answer - B | |
| 56. |
Violet flower colour in garden pea is ….trait.A. RescessiveB. Dominant epistasisC. epistaticD. Complementary gene |
| Answer» Correct Answer - B | |
| 57. |
Which of the following illustrates pleiotrophy?A. In fruitflies, the genes for scarlet eyes and hairy body are located on the same chromosmeB. Matings between earless sheep and long-eared sheep always result in short-eared offspringC. Wheat kernels can rangs from white to red in colour, a trait controlled by several genesD. The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems |
| Answer» Correct Answer - D | |
| 58. |
When two heterozygous tall plants are crossed, some short plants appear in the offspring. The appearance of these short plants illustratesA. Segregation and recombinationB. Intermediate inheritance and gene linkageC. crossing over and differentiationD. Codominant inheritance |
| Answer» Correct Answer - A | |
| 59. |
A fruitfly has two genes for eye colour, but each of its sperm cell has only one. This illustratesA. SegregationB. Independent assortmentC. linked genesD. pleiotropy |
| Answer» Correct Answer - A | |
| 60. |
Polygenic inheritance is controlled byA. 1 geneB. 3 genesC. 2 genesD. Both (a)and (b) |
| Answer» Correct Answer - D | |
| 61. |
The resembleance of individuals to their progenitiors is calledA. heredityB. GeneticsC. EvolutionD. None of these |
| Answer» Correct Answer - A | |
| 62. |
In a certain veriety of chicken, the genes for black feather colur and the genes for white feather colour are condominant. This variety of chicken will most likely haveA. Three possible phenotypes for feather colourB. Only two genotypes for feather colourC. White feather colour onlyD. black feather colour only |
| Answer» Correct Answer - A | |
| 63. |
In squirrels, the gene for grey fur (G) is dominant over the gene for black fur (g) . If 50% of a large litter of squirrels are grey, the parental cross that produced this litter was most likelyA. GG x GgB. Gg x ggC. GG x GGD. gg x gg |
| Answer» Correct Answer - B | |
| 64. |
If Mendel had studied 8 traits using pea plant with 14 chromosomes, he wouldA. Not have proposed that chromosomes are carriers of hereditary factorB. Not have discovered the law of independent assortmentC. Have not discovered sex linkageD. Have discovered polygneic inheritance |
| Answer» Correct Answer - B | |
| 65. |
A wild type isA. The phenotype found most commonly in natureB. The dominant alleleC. Designated by a small letter if it is recessive or a capital letter if it is dominantD. all of the above |
| Answer» Correct Answer - A | |
| 66. |
A test cross distinguishes between :A. Two homoxygous formsB. A homoxygous dominant and a heteroxygous formC. two heteroxygous formsD. A homozygous recessive and a heteroxygous form |
| Answer» Correct Answer - B | |
| 67. |
Medel started his experiments with pure strains of peas. A pure strain was developed by removing allA. Female plantsB. male plantsC. typical plants in each generationD. weak plants |
| Answer» Correct Answer - C | |
| 68. |
Mendel carried out experiment on pea plant inA. Vienna UniversityB. University of AustriaC. Monastry of BrunnD. School of Brunn |
| Answer» Correct Answer - C | |
| 69. |
The process of removing stamen from flora buds during hybridisation experiments isA. CappingB. SelfingC. Law of independent assortmentD. Crossing over |
| Answer» Correct Answer - C | |
| 70. |
Law of Mendel which is not completely applicable is:A. law of dominanceB. Law of segregationC. Law of independent assortmentD. codominance |
| Answer» Correct Answer - A | |
| 71. |
Law of Mendel which is not completely applicable is:A. CodominanceB. law of segregationC. Law of independent assortmentD. Law of dominance |
| Answer» Correct Answer - D | |
| 72. |
"Gametes are never hybrid ". It is a statement of law ofA. dominanceB. segregationC. independent assortmentD. random fertilisation |
| Answer» Correct Answer - B | |
| 73. |
Dihybrid test cross ratio isA. `3:3`B. `1:2:1:2`C. `1:1:1:1`D. `2:1:2` |
| Answer» Correct Answer - C | |
| 74. |
The genetic concept of segregation and independent assortment are most likely to be associated withA. Mitosis and meiosisB. Meiosis and fertilisationC. Meiosis and reproductionD. Mitosis and cleavage |
| Answer» Correct Answer - B | |
| 75. |
In animals law of segregation was experimentally seen by Morgan inA. DrosophilaB. CattleC. DogsD. mice |
| Answer» Correct Answer - A | |
| 76. |
Which one is not the reason for the success of Mendel?A. Made statistical analysis of the ofspringsB. Kept accurate recordsC. Select pea paintD. Only did self- pollination in plants |
| Answer» Correct Answer - D | |
| 77. |
An individual, which always perform true breeding isA. DominantB. RecessiveC. HybridD. None of these |
| Answer» Correct Answer - B | |
| 78. |
Which of the following is more likely to beA. PureleinesB. Self-pollinated cropsC. AutopolyploidsD. Cross-pollinated crops |
| Answer» Correct Answer - D | |
| 79. |
The `"F"_(2)` generation offspring in plant showing incomplete dominance, exhibit:A. Variable genotypeic and phenotypic ratioB. A genotyupic ratio of 1:1C. A phenotypic ratio of 3:1D. Similar phenotypic and genotypic ratio is 1:2:1 |
| Answer» Correct Answer - D | |
| 80. |
Which concept is not associated with the work of Mendel?A. DominanceB. Independent assortmentC. Use and misuseD. Segregation |
| Answer» Correct Answer - C | |
| 81. |
Ina given plant, red colour R of fruit is dominant ove rwhite fruit r, and taliness (t) is dominant over dwarness(t). It a plant with genotype RRTt is crossed with a plant over genotype rrtt, what will be next generation?A. 1B. 0.25C. 0.5D. 0.75 |
| Answer» Correct Answer - C | |
| 82. |
Segragation of genes takes place duringA. metaphaseB. anaphaseC. prophaseD. zygote formation |
| Answer» Correct Answer - B | |
| 83. |
A recessive gene can be expressed if the genotype isA. Homozygous rescessiveB. Homoxygous dominantC. heterozygousD. Both (b) and (c) |
| Answer» Correct Answer - A | |
| 84. |
What is the genotype for a short pea plantA. ttB. TtC. TTD. Cannot be determined |
| Answer» Correct Answer - A | |
| 85. |
A chestnut- coloured horse crossed with a white coloured horse results in a palomino coat colour. This is asn example of ……. Inheritance.A. dominantB. recessiveC. codominantD. corecessive |
| Answer» Correct Answer - C | |
| 86. |
Cross between AaBB and aaBB will formA. 1 AaBB:1aaBBB. All AaBBC. 3 AaBB: 1aaBBD. 1 AaBB: 3 aaBB |
| Answer» Correct Answer - A | |
| 87. |
The offspring of mating between two pure breeding strains calledA. HybridB. mutantC. the P- generationD. the `F_(2)` -generation |
| Answer» Correct Answer - A | |
| 88. |
How many types of gametes are formed by pea plant having YYRRtt genotype?A. 2B. 4C. 8D. None of these |
| Answer» Correct Answer - D | |
| 89. |
Which phase of meiosis is most directly related to the law of independent assortment?A. Anaphase-IIB. Prophase-IIC. Metaphase-ID. Metaphase-II |
| Answer» Correct Answer - C | |
| 90. |
You think that two alleles for coat colour in mice show incomplete dominance. What is the best and somplest cross to perfomr in order to support your hypothesis?A. A test cross of a homozygous recessive mouse with a mouse of unknown genotypeB. A cross of `F_(1)` mice to look for a 1:2:1 ratio in the offspringC. A reciprocal cross in which the sex of the mice of earch coat colour is reversedD. A cross of two true-breeding mic of different colour to look for an intermediate phenotype in the `F_(1)` |
| Answer» Correct Answer - C | |
| 91. |
Which of the following is best suited for codominance ?A. Both are recessiveB. Both are dominantC. One is recessiveD. One is dominant |
|
Answer» Correct Answer - B In codominance, both the genes of an allelomorphic pair express themselves equally in `F_(1)` hybrids, i.e. both are dominant. |
|
| 92. |
which of the following is best suited for codominance?A. flower colour in snapdragonB. MN blood group in humanC. Both (a) and (c)D. Skin colour in human |
| Answer» Correct Answer - B | |
| 93. |
The genotype of a plant showing the dominant phenotype can be determined by –A. Test crossB. dihybrid crossC. pedigree analysisD. back cross |
| Answer» Correct Answer - A | |
| 94. |
A gene showing codominance hasA. One allele dominant on the otherB. alleles tightly linked on the same chromosoeC. Alleles that are recessive to each otherD. Both alleles independently expressed in the heteroxygote |
| Answer» Correct Answer - D | |
| 95. |
In dominant epistasis, gene is a dominant gene.In Cucurbita pepo, gene for white fruit colour(w) is epistatic over yellow(Y) which is dominant over green(y) . What will be the ratio of fruits colour in the cross WwYy (white) x Wwyy (white)gtA. 9 white: 7 yellowB. 12 white: 3 green: 1 yellowC. 12 white: 3 yellow: 3 greenD. 6 white : 1 yellow: 1 green |
| Answer» Correct Answer - D | |
| 96. |
If a cross between two individuals produces offsprings with 50% dominant character (A) and 50% recessive character (a) the genotype of parents are:A. Aa x AaB. Aa x aaC. AA x aaD. AA x Aa |
|
Answer» Correct Answer - B A cross between homoxygous recessive and heteroxygous plant is called test cross. It gives 1: 1 ratio in monohybrid and 1:1:1:1 ratio in dihybrid cross. |
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| 97. |
If dominant gene pair mask the expression of other gene pair, it will beA. Recessive epistasisB. Dominant epistasisC. Duplicate genes interactionD. inhibitory genes interaction |
| Answer» Correct Answer - C | |
| 98. |
Which of the following pair is incorrect?A. Presence of webbed digit in humans- RecessiveB. Presence of glaucoma in human -DominantC. Attached ear lobes- RecessiveD. Brown iris colour-Dominant |
| Answer» Correct Answer - A | |
| 99. |
Choose the incorrect pair regarding the dominant characters in given organisms. Organism Dominant characterA. Organism-Salamander, Dominant - Dark body colourB. Organism-Dog, Dominant - Black skin colourC. Organism-Human,-Dominant character-Curly hairsD. None of the above |
| Answer» Correct Answer - B | |
| 100. |
Choose the incorrect statement.A. Tabby colour is dominant over black in castB. Stumpy tail is dominant over normal tail in dogsC. Horned cattle is dominant over hornessD. None of the above |
| Answer» Correct Answer - C | |