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.
| 22851. |
Question : Abies, lizards and polar bear can tolerate(a) Wide range of temperature(b) Only a narrow range of temperature(c) Wide range of salinities |
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Answer» (a) & (B) |
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| 22852. |
Question : [A]: The earliest living organisms were truc-turally simple.[R]: The earliest living organisms were more complex than present one. |
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Answer» If both A and R are true and R is the correct EXPLANATION of A |
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| 22853. |
Question : [A]: The DNA fingerprinting relies on recom- binant DNA technology and can prove the identification of a suspect. [R]: It is based on the pattern, length, and· number of DNA repeats and ate unique.for each individual's genetic blueprint-DNA |
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Answer» If both A and R are TRUE and R is the CORRECT EXPLANATION of A |
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| 22854. |
Question : {:((a),"Benthic",,-,"Bottom zone of"),(,,,,"the pond"),((b),"Riparian vegetation",,-,"Lakes and"),(,,,,"ponds"),((c),"Deciduous forest",,-,"Heavy rainfall"),((d),"Grassland",,-,"Himalayas"):} |
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| 22855. |
Question : Abdominal muscles play a role in breathing mainly during |
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Answer» NORMAL INSPIRATION |
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| 22856. |
Question : [A]: The deleted region of long arm of chro- mosome 7 contains the elastin gene.[R]: Deletion of long arm of chromosome 7 results in Cri du Chat syndrome |
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Answer» If both A and R are true and R is the correct EXPLANATION of A |
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| 22857. |
Question : A: The DNA fingerprint is the same for every cell, tissue and organ of a person. R: DNA fingerprint is used for treatment of inherited disorders like Huntigton's disease, Alzheimer's and Sickle cell anemia. |
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Answer» A and R both are CORRECT. R is EXPLANATION of A. |
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| 22858. |
Question : Abbe Lemaiter [1931] |
| Answer» SOLUTION :GAVE Big BANG Theory, our universe arose as CATACLYSMIC eruption. | |
| 22859. |
Question : [A]: The chromosomes of plants are larger than animals. [R]: The chromosomes of monocots are larger than dicots |
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Answer» If both A and R are TRUE and R is the CORRECT EXPLANATION of A |
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| 22860. |
Question : Abbreviation NPK means________. |
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Answer» |
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| 22861. |
Question : [A]: The base ratio (A+T )/(G+C) is constant in a particular organism. [R]: The ratio is, however, different in the dif- ferent DNA molecules |
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Answer» If both A and R are TRUE and R is the correct EXPLANATION of A |
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| 22862. |
Question : A,B and O blood groups were discovered by |
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Answer» Landsteiner |
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| 22863. |
Question : A: The cells that produce and secrete fibres are called fibroblasts. R: Fibroblasts are the characteristic cells of all types of connective tissue. |
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Answer» If both assertion & reaction are true and the reason is the correct explanation of the assertion, then MARK (1). |
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| 22864. |
Question : AB blood group is universal donor. |
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| 22865. |
Question :A thalidomide drug was prescribed during pregnancy to ease morning sickness but itmay eros the placenta and on reaching into foetus may cause deformity in foetus. Which ofthe following abnormality mainly occurs :- |
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Answer» Phocomalia |
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| 22866. |
Question : [A] : Testes are attached to abdominal wall by a ligament and under testosterone influence, it is drawn into scrotum.[R]: Leydig cells secrete androgens like test- osterone. |
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Answer» If both A and R are TRUE and R is the correct EXPLANATION of A |
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| 22867. |
Question : AaBb was crossed with aabb. What would be the phenotypic ratio of the progeny? Mention the term to denote this kind of cross. |
Answer» Solution : KIND of CROSS: Test cross between a heterozygous dihybrid and DOUBLE recessive parents. 
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| 22868. |
Question : A: Tetrapid gametophyte can be produced formtetraploid sporophyte by menas of apogamy R:L Apogamy involves fertilisation not meiosis |
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Answer» if both ASSETION A reason are ture and the reason is the CORRECT explanation of the assertion then MARK |
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| 22869. |
Question : A test is performed to known whether the given plant is homozygous dominant or heterozygous. Name the test and phenotypic tatio of this tes for a monohybrid cross. |
| Answer» SOLUTION :TEST CROSS 1:1 | |
| 22870. |
Question :Aa Bb was crossed with aa bb. What would be the phenotypic ratio of progeny? Mention the term to denote this kind of cross. |
| Answer» SOLUTION : 1:1:1:1, TESTCROSS | |
| 22871. |
Question : A test cross of Aa Bb Cc produces how many phenotypes? |
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Answer» 4 |
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| 22872. |
Question : A test cross of F_(1) flies ++/ab produced the followings, ++/ab(R) 9"" ab/ab(R)9 +b/ab(R) 41""a+/ab(R)41 This cross represents |
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Answer» TRANS configuration |
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| 22873. |
Question : A_(3)-_(5)B C_(5)-_(3)D AB and CD represent two strands of a DNA molecule. When this molecule undergoes replication, a replication fork is formed between A and C in the above. i. Name the template strands for replication. ii. Using which strand as the template, will there be continuous synthesis of a complementary DNA strand? iii. Complementary to which strand will Okazaki segments get synthesised. iv. What are template strands and Okazaki pieces? v. In which direction is a new strand synthesised? |
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Answer» Solution :i. COMPLEMENTARY strands. ii. ONE of the template strands with 3.`rarr`5. polarity. The synthesis of DNA is continuous. iii. Other template strand with polarity 5.`rarr`3., the synthesis of DNA is discontinuous. i.e., short stretches of DNA are SYNTHESISED. iv. Template - It is for the synthesis of a new complementary strand. Okazaki pieces: It is discontinuous FRAGMENTS of DNA. It is Y shaped fragment. v. The new strand is synthesised in 5.`rarr`3. direction. |
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| 22874. |
Question : A test cross is performed |
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Answer» by selfing of F7-generation plants |
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| 22875. |
Question : A250 kg cow produces 200 g of protein per day but 250 g of Methylophillus methylotrophus can produce 25 tonnes of protein. Name this emerging area of research. Explain its benefits. |
| Answer» Solution :Production of SINGLE cell proteins (SCP) by microbes. Microbes are being grown on an INDUSTRIAL scale. Spirulina can be easily grown on starch, molasses etc., and can make FOOD which is rich in proteins, minerals, fats, carbohydrates and vitamins. This could be a good alternative for dealing with the problem of MALNUTRITION. | |
| 22877. |
Question : A terrestial animal must be able to: |
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Answer» Actively PUMP salts out through the skin |
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| 22879. |
Question : A youth in his twenties met with an accident and succumbed to the injuries. His parents agreed to donate his organs. List any two essential clinical steps to be undertaken before any organ transplant. Why is the transplant rejected sometimes ? What views would you share with your health club members to promote organ donation ? |
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Answer» Solution :1. Blood group matching of donor. 2. Tissue Matching. 2. The grafts are rejected some times because of the cell MEDIATED immunity involving the T-lymphocytes. The T-lymphocytes are responsiblefor the body todifferentiate selfand non-self leading to graft rejection. The VIEWS to be shared with health club members regarding organ donation are : (i) Organ donation is ahealthy practice and is life savingfor those in need. (ii) Withthe availabilityof IMMUNE suppressants like cyclosporine A the acceptability ofdonor ORGANS in recipients has increased. |
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| 22880. |
Question : A temporary endocrine gland in the human body is |
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Answer» PINEAL gland |
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| 22881. |
Question : A young sperm whale, 33-foot long was found dead off the coast. It has a large amount of human trash like trash bags, polypropylene sacks, ropes, net segments etc. amounting to 29 kilograms in its digestive system. The whale died because of inflammation of the abdominal lining. Analyze the possible reasons for such mishaps and suggest measures that can be taken to reduce such incidents. |
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Answer» Solution :Whale died because of the inflammation of the ABDOMINAL lining due to plastic present in the ocean. `**""`We are inreading the use of non-biodegradable products. At leat one layer of plastic is there in most of the products we buy. `**""`We have started packaging even our DAILY use products like milk and water in polybags. `**""`In cities, fruits and vegetables are packed in polystyrene and plastic packging and we contribute heavily to ENVIRONMENTAL pollution. Measure that could be taken to reduce such mishaps are : `**""`We can SUPPORT government's initiative across the country be reducing the use of plastics and use of eco-friendly packaging. `**""`We can do our bit by carrying cloth or other natural fibre carry-bags when we go for shopping and by refusing to take the polythene bags from shopkeepers. `**""`It is important that all garbage generated is sorted. The biodegradable materials can be put into deep pits in the ground and be left for natural breajdown. It leaves only the non-biodegradable to be disposed of, the quantity of which should be minimize. The need to reduce our garbage generation should be a PRIME goal. |
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| 22882. |
Question : A technology which has found immense use in solving cases of disputed parentage is : |
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Answer» DNA fingerprinting |
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| 22883. |
Question : A technique which Involves deliberate manipula- tion of genes within or between species is called |
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Answer» Gene THERAPY |
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| 22884. |
Question : A young boy when brought a pet dog home started to complain of watery eyes and running nose. The symptoms disappeared when the boy was kept away from the pet. (a) Name the type of antibody and the chemicals responsible for such a response in the boy. (b) Mention the name of any one drug that could be given to the boy for immediate relief from such a response. |
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Answer» Solution :(a) The IgE type of antibody and chemicals like histamine and SEROTONIN released from mast cells are responsible for this response. (b) DRUGS like anti histamine, ADRENALIN and steroids can be GIVEN to the boy for IMMEDIATE relief from such a response. |
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| 22885. |
Question : Which procedure is followed for amplification of DNA? |
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| 22886. |
Question : A yellow colour flower plant indicated by YY is crossed with white color flower plant denoted by yy. (a) following the Mendelian inheritance pattern , what would be the flower color is first filial generation ? (b) Which Mendelian principle is illustrated in this cross ? (c) Derive the cross and state the phenotypic ratio of yellow flowers to white flowers in F_2 generation ? |
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Answer» Solution :(a) `F_1` plants produce yellow colour flower plants . (b) LAW of DOMINANCE and Law of segregation (C)Parent Gamets 
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| 22887. |
Question : [A]: Xylem transports sap from root to shoot. [R]: Phloem translocates food. |
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Answer» If both A and R are TRUE and R is the correct EXPLANATION of A |
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| 22888. |
Question : A technique of micropropagation is |
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Answer» SOMATIC HYBRIDISATION |
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| 22889. |
Question : (a) Write what DNA replication refers to. (b) State the properties of DNA replication model. (c ) List any three enzymes involved in the process along with theirfunctions. |
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Answer» Solution :(a) DNA replication refers to synthesis of DNA (b) The two strands of DNA separate and act as template for the synthesis of new COMPLEMENTARY strands. After the completion of replication each DNA molecule would have one parental and one newly synthesised strand le.. DNA replication is semiconservative. It is continuous on one strand and discontinuous on the other strand as replication occurs only in 5'- 3' direction. The replication does not INITIATE randomly at any place in DNA. It starts at definite regions called origin of replication For long DNA molecules, since the two strands of DNA cannot be separated in its entire LENGTH (due to very high energy requirement). the replication occurs within a small opening of the DNA helix, referred to as replication fork. (c ) 1. DNA polymerase III-adds nucleotides 2. RNA primase - adds RNA primer 3. Helicase-breaks hydrogen bonds and SEPARATES two DNA strands 4. Gyrase - relaxes supercoiling 5. DNA ligase-Joins Okazaki fragments |
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| 22890. |
Question : A team of students are perparing to participate in the inter school sports meet.During a practice session you find some vials with labels of certain cannabionoids . (a) Will you report to the authorities ? Why ? ( b) Name a plant from which such chemicals are obtained . ( c) Write the effect of there chemicals on human body . |
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Answer» Solution :YES ,I would report the MATTER to the AUTHORITES because cannabionids are classified under drugs of abuse . ( b) Cannabionoids can be obtained from a plant CALLED Cannobis Sativa . ( c) The cannabionoids bind to cannobinoid receptors in the BRAIN and affect the cardiovascular system. |
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| 22891. |
Question : (a) Write the specific features of the genetic code AUG (b) Explain aminoacylation of the tRNA |
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Answer» Solution :(a) GENETIC CODE AUG has dual functions. It codes for methionine (met) and It also acts as initiator CODON. (b) ACTIVATION of amino acid in presence of ATP and its linkage to their cognate tRNA is called as charging of tRNA or aminoacylation of tRNA |
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| 22892. |
Question : A teacher wants his/her students to find the genotype of pea plants bearing purple coloured flowers in their school garden. Name and explain the cross that will make it possible. |
Answer» SOLUTION :The GENOTYPE of pea plants bearing purple coloured flowers can be determined with the of a TEST Cross. A Test Cross is used to determine the genotype of any trait. A Purple flower Hi to be crossed with a WHITE (homozygous recessive) flower.
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| 22893. |
Question : (a) Write the scientific name of the organism Thomas hunt morgan and his colleagues worked with for their experiment s .Explain the correction between linkage and recombination with respect to genes as studied by them (b) How did sturtevant expain gene mapping while working wiht morgan? |
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Answer» Solution :(a) Drosphila melanogaster: morgan carried out several dihybrid crosses in drosophila to STUDY gens that were sex lined Morgan and his group kenew that the ngens were locayed on he x chomosome and saw quickly that when cominations were much higher than non parental type. Morgan attributed this due ot the physicla sassociation chromosome and the term recombination to describe the generations of non parental GENE combination morgan and his group also found that evenwhen GENES wer grouped on the same chromosome some gens were very tightly linked while others were loosely linked (B) MORNING student alfred sturteveant used the frequaency of recombination between gene paris on the same chromosome as a measure of the distance between genes and mapped their position on the chromosome |
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| 22894. |
Question : A technique of deliberate manipulation of genes or transfer of gene to a different organism is |
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Answer» GENE THERAPY |
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| 22895. |
Question : A Teacher explaining physical contact leading to equal physiological dependence between two thalloid forms was telling about |
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Answer» Mycorrhizal association |
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| 22896. |
Question : (a) Write the correct sequence of accessory ducts in human testis after seminiferous tubules. (b) Fill in the blanks from Leydig cells, Sertoli cells, Spermatids, Spermatozoa: Castration of male cattle leads to destruction of _______ cells which secrete testosterone hormone. |
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Answer» SOLUTION :(a) (SEMINIFEROUS tubules) `to` Rete Testis `to` Vas Efferens `to` Epididymis `to` Vas DEFERENS (b) Leydig cells. |
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| 22897. |
Question : (a) Taq polymerase : Thermus aquaticus (b) Ti plasmid : _____ |
| Answer» SOLUTION :AGROBACTERIUM tumifaciens. | |
| 22898. |
Question : A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the F_(1) plants were selfed the resulting genotypes were in the ratio of |
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Answer» 3:1:: TALL : DWARF |
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| 22899. |
Question : (a) Write any two different levels at which regulation of Gene Expression could be exerted in Eukaryotes. |
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Answer» Solution :The DIFFERENT LEVELS at which REGULATION of gene expression can be exerted in eukaryotes are FOLLOWING : 1. Transcriptional level (FORMATION of primary transcript). 2. Processing level (Regulation of splicing). |
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| 22900. |
Question : A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the Fl plants were selfed the resulting genotypes were in the ratio of |
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Answer» 1: 2: 1:: TALL heterozygous : Tall HOMOZYGOUS Dwarf |
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