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.
| 4001. |
Question : Through blood larva of filariasis are transferred to |
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Answer» LYMPHATIC VESSELS |
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| 4002. |
Question : Thrombocytes are cell fragments produced from |
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Answer» DENDRITIC cells |
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| 4003. |
Question : Three yellow round pea seeds labelled A,B,C were taken and grown into plants. The plants wee crossed to a plant grown from a green wrinkled pea. 100 seeds issuing from each cross were sorted into phenotypic classes as follows. ltbr. i. A: 100 yellow round ii. B:51 yellow round, 49 green round iii. C: 24 yellow round, 26 yellow wrinkled, 25 green round, 24 green wrinkled The genotype ofplant C would be |
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Answer» YYRR |
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| 4004. |
Question : Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatement plant were subjected to BOD test. The samples were labelled A, B and C. but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct to each assuming the river water is relatively clean ? |
| Answer» SOLUTION :If the BOD level of A,B and C are 20 mg/L, 8 mg/L and 400 mg/L, the most POLLUTED one is sample .C. i.e., untreated sewage water. Sample B is the LEAST polluted and it is river water. Sample A is SECONDARY effluent discharged from a treatement plant. | |
| 4005. |
Question :Three water samples namely river water, untreated sewage water and subjected to BOD test. The samples were labelled A, B and C but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20 mg/L, 8 mg/L and 400 mg/L respectively, which sample of the water is most polluted ? Can you assign the correct label to each assuming the river water is relatively clean? |
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Answer» SOLUTION : Sample A - SECOND influent Sample B - RIVER water Sample C - Sewage WITHOUT treatment |
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| 4006. |
Question : Three water samples, namely , riverwater , untreated sewage water and secondary effluent discharged from sewage treatment plant were subjected to BOD test, and The obtained values are 60(mg)/L, 307(mg)/L and 200(mg)/L respectively. |
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Answer» SOLUTION :307 `(ml)/L` (untrated sewage water). High BOD represents a LARGE number of microbes and high level of pollution. BOD refers to the amount of `O_2` that would be consumed if all the organic matter in 1 litre of water were oxidised by BACTERIA. |
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| 4007. |
Question : Three of the steps of neuro - endocrine mechanism in respect of parturition are mentioned below. Write the missing steps in proper swquence.(a) Signals originate from fully developed foetus and placenta. (b) ………………………………..( c ) …………………….(d) Oxytocin causes strong uterine contraction (e) Uterine contraction stimulates further secretion of oxytocin.(f) ................. |
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Answer» Solution :(b) FOETAL EJECTION reflex ( c ) The reflex triggers RELEASE of oxytocin (f) Expulsion of the BABY out through birth canal. |
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| 4008. |
Question : These process are necessary for the complete development of male gametophyte from pollen mother cell.One meiotic and two mitotic devisionsOne meiotic cell division and one meiotic cell divisionTwo meiotic cell division and one mitotic cell divisionTwo meiotic cell division |
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Answer» ONE MEIOTIC and two mitotic devisions |
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| 4010. |
Question : Three of the following statements about enzymes are correct and one is wrong. Which one is wrong ? |
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Answer» Enzymes require OPTIMUM pH for maximal activity |
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| 4011. |
Question : Three mile island ,chernobyl incidents are typical example for …………….pollution |
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Answer» Sound |
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| 4012. |
Question : Three genes a b c show crossing over 20% between a and b, 28% between b and c and 8% between a and c. Swquence of genes will be |
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Answer» bac |
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| 4013. |
Question : Three fatty acids join by condensation with glycerol to form a _____. |
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Answer» |
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| 4014. |
Question : Three enzymes required to break down lactose into glucose and galactose are |
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Answer» `BETA` -galactosidase, Permease and Transacetylase |
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| 4015. |
Question : Three domains of life is based on |
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Answer» PROTEIN Sequence |
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| 4016. |
Question : Three copies of chromosome -21 in a child with Down's syndrome have been analysed using molecular biology technology to detect any possible DNA polymorphism with reference to different alleles located on chromosome -21.Results showed that out of 3 copies 2 of the chromosome of the child contain the same alleles as one of the mohter's alleles .Based on this when did the non-disjunction event mostly likely occur: |
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Answer» PATERNAL meiosis-I |
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| 4017. |
Question : Three crops that contribute maximum to global food grain production are : |
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Answer» WHEAT,RICE,and MAIZE |
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| 4018. |
Question : Three codons on mRNA are not recognized by transfer RNA. What are they? What is the general term used for them? What is their significance in protein synthesis? |
| Answer» Solution :These codons are UAA, UAG and UGA. The general NAME given to these codons is NONSENSE codons. These codons do not specify any amino acid but the termination of polypeptide chain is signalled by them. | |
| 4019. |
Question : Three children of a family have blood groups A, AB and B. What could be the genotypes of their parents? |
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Answer» `I^(A)I^(B) `and II |
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| 4020. |
Question : Thousands of migratory birds from Siberia visits which part of India ? |
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Answer» Nal SAROVAR |
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| 4021. |
Question : Three children in a family have blood types O, AB and B respectively. What as the genotypes of their parents ? |
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Answer» `I^AI^Band II` |
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| 4022. |
Question : threecellsat the______ endin theovuleformsthe eggappatatus . |
| Answer» SOLUTION :MICROPYLAR | |
| 4023. |
Question : Though we inherit parental genes, we differ a lot from our parents, justify the statement in one sentence. |
| Answer» SOLUTION :Though we inherit parental genes, we differ a lot from our parents because there is recombination of paternal and MATERNAL genes and ALSO infrequent mutations at the time of CELL division which cause variations. | |
| 4024. |
Question : Though the conflict between humans and wildlife started with the evolution of man, the intensity of conflict has increased due to the activities of modern man. Justify your answer with suitable examples. |
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Answer» Solution :From a study of the history of life on earth through fossil records, we learn that large-scale loss of species like the ONE we are currently witnessing have also happened earlier, even before humans appeared on the scene. During the long period `(gt 3` billion years) since the origin and diversification of life on earth there were five episodes of MASS EXTINCTION of species. The .Sixth Extinction. presently in progress is different from the previous episodes. The difference is in the rates, the current species extinction rates are estimated to be 100 to 1,000 times faster than in the pre-human times and our activities are responsible for the faster rates. Ecologists warn that if the present trends continue, nearly half of all the species on earth might be wiped out within the next 100 years. The colonisation of tropical Pacific Islands by humans is said to have led to the extinction of more than 2,000 species of native birds. The IUCN Red List (2004) DOCUMENTS the extinction of 784 species. The last twenty years alone have witnessed the disappearance of 27 species. |
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| 4025. |
Question : Though SCP is a rich protein source , it has not been widely used as food supplement. Point a reason to support this statement. |
| Answer» Solution :Yes, although SCP is a rich protein SOURCE it is not WIDELY used by most of the PEOPLE in countries due to its HIGHER nucleic acid content and slow digestibility. | |
| 4026. |
Question : Though mitochondria are absent in the cells, Tricarboxylic acid cycle occurs in |
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Answer» YEAST cells |
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| 4027. |
Question : Though Green Revolution has been a resounding success in terms of agricultural production, yet it has failed in its overall social objectives because |
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Answer» it has not succeeded in making India totally and permanently self-sufficient in food |
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| 4028. |
Question : Those seeds which germinate on exposure to light. |
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Answer» |
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| 4029. |
Question : Those cnidarians which exist in both (polyp and medusa) forms, exhibit |
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Answer» METAGENESIS |
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| 4030. |
Question : Thorn of Bougainvillea and thendril of Cucurbita are example of : |
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Answer» Vestigial ORGANS |
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| 4031. |
Question : Thorn of Bougainvillea and tentrils of Cucurbita represent all of the follwing expect |
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Answer» Hoology |
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| 4032. |
Question : Thorn of Bougainvillea and tendril of cucurbita are example of |
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Answer» ANALOGOUS ORGANS |
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| 4033. |
Question : Thorn of Bougainvillea and tendrils of Pisum sativum represent homology. How? |
| Answer» Solution :The THON of Bougainvillea and the tendrils of Curcurbita and Pisum sativum represent HOMOLOGY. The thorn in former is used as a defence mechanism from GRAZING animals and the tendrils of latter is used as a SUPPORT for climbing. | |
| 4034. |
Question : Thoracic duct in humans is associated with: |
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Answer» Arota |
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| 4035. |
Question : Thoracic cage of man is formed by |
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Answer» RIBS and STERNUM |
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| 4036. |
Question : Thoracic cage in Human in made up of :- |
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Answer» RIBS, VERTEBRAL COLUMN and DIAPHRAGM |
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| 4037. |
Question : Thoms of Bougainvillea and tendrils of Cucurbila are examples of |
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Answer» ANALOGOUS organ |
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| 4038. |
Question : This uses mimicry as a defence mechanism |
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Answer» Date Palm |
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| 4039. |
Question : This type of symmetry is found in ? |
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Answer» Hydra , Pleurobrachia , Tapeworm |
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| 4040. |
Question : This tumour normally confined to their original location and do not spread to other parts of the body |
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Answer» MALIGNANT TUMOUR |
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| 4041. |
Question : This states that an organisms during its development tends to repeat the evolutionary history of its ancestors |
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Answer» BIOGENETIC law |
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| 4042. |
Question : This stage of animals that can be compared to a colonial protozoan ancestor |
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Answer» Blastula |
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| 4043. |
Question : This stage of butterflies which is similar to a developmental stage of an annelid indicates the origin of Arthropods from Annelids |
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Answer» PERIPATUS |
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| 4044. |
Question : This provides a temperature of -196^(@)C for cryopreservation. |
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Answer» LIQUID `CO_(2)` |
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| 4046. |
Question : This stage of animals can be compared to cnidarian (diploblastic) ancestor |
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Answer» Morula |
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| 4047. |
Question : This plant is ideal to demonstrate ascent of sap |
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Answer» ROSE plant |
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| 4048. |
Question : This person united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritace |
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Answer» Sutton |
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| 4049. |
Question : This pedigree is of a rare trait, in which children have extra fingers and toes. Which one of the following patterns of inheritance is consistent with the pedigree? |
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Answer» AUTOSOMAL recessive |
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| 4050. |
Question : This one is often referred as atherosclerosis |
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Answer» CAD |
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