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.
| 7501. |
Question : Study the pedigree charge given below What does it show? |
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Answer» INHERITANCE of asex linked inborn error of metabolism like phenylketonuria |
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| 7502. |
Question : Study the graph given below. Explain how is oxygen concentration affected in the river when sewage is discharged into it. |
| Answer» Solution :Whensewage is discharged into river, the oxygen concentration declines SHARPLY because a large amount of oxygen is consumed by AEROBIC micro organisms in river to DECOMPOSE the organic matter in river. When the amount of organic matter REDUCES, the amount of dissolved oxygen again increases. | |
| 7503. |
Question : Study the given statements carefully and give the answer :- (A) In lower taxa similarities are more (B) Families are characterised on the basis of both vegetative and reproductive features of plants species. (C) Felidae and canidae are the families of cat and dog respectively (D) To detemine relations in lower taxa is more difficult in comparison to higher taxa. How many statements are correct from them ? |
| Answer» ANSWER :C | |
| 7504. |
Question : Study the given populations and choose the correct answer in relation to species diversity. |
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Answer» `{:("MAXIMUM diversity",,"MINIMUM diversity"),("POPULATION B",,"Population C"):}` |
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| 7505. |
Question : study the given statement and answer the question."During 'P' phase of the mentrual cycle, if pregnancy does't happen, the 'Q' withers and dies usually around day 22 in a 28-day cycle . The drop in 'R' levels cause the lining of the utrerus to fall away. This is know as 's'.Identify P, Q, R and S. |
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Answer» (1) P `to` Menstrual, Q `to` Graafian follicle, R `to` Estrogen, S `to` Menarche |
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| 7506. |
Question : Study the given pedigree chart of a certain family and select the correct conclusion which can be drawn for the character |
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Answer» The female PARENT is heterozygous |
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| 7507. |
Question : Study the given pedigree chart and answer the questions that follow: Is the trait recessive or dominant? |
| Answer» SOLUTION :RECESSIVE | |
| 7508. |
Question : Study the given pedigree chart and answer the questions that follow. Is the trait recessive or dominant? Is the trait sex linked or autosomal? Give the genotypes of the parents shown in generation I and their III child shown in generation II and the first grandchild shown in generation III. |
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Answer» SOLUTION :Dominant AUTOSOMAL PARENTS - Mother-AA Father - Aa THIRD child - Aa First grand-child - Aa |
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| 7509. |
Question : Study the given pedigree chart and answer the given questions :- |
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Answer» Is the trait SEX linked or AUTOSOMAL ? Why? |
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| 7510. |
Question : Study the given pedigree chart and answer the queation that follow. (a) In the trait recessive or dominant ? (b) Is the trait sex-linked or autosomal ? (c) Give the genotypes of the parants in generation I and of their third and fourth child in generation. |
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Answer» Solution :(a) the TRAIT is recessive. (b) the trait is Autosomal recessive trait. (c) This is an autosome linked recessive trait that can be transmitted fromparents to the of offspring when both the partners are carrier for the gene (or heterozygous). The disease is CONTROLLED by a single pair of allele, `Hb^(A) and Hb^(S)` .Out of the three possible genotypes only homozygous individuals for `Hb^(S) (Hb^(S) Hb^(S))` show the DISEASED phenotype Heterozygous (Hb Hbs) individuals appear unaffected but they are carrier of the disease as there is 50% probability of transmission of the mutant gene to the progeny. GenotypeI GENERATION - Aa and Aa Genotype of generation II of third child is aa and fourth child is Aa. |
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| 7511. |
Question : Study the given pedigree chart and answer the questions that follow. Is the trait recessive or dominant? Is the trait sex linked or autosomal? Give the genotypes of the parents in generation I and their third and fourth child in generation II. |
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Answer» Solution :If we take A and a as the TRAITS Recessive AUTOSOMAL PARENTS - AA and Aa Third CHILD - aa Fourth child - Aa |
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| 7512. |
Question : Study the given pedigree chart and answer the given questions :- |
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Answer» Is the trait recessive or dominant |
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| 7513. |
Question :Study the given monohybrid cross: A test cross for this F, will be: |
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Answer» `T t XX T T` |
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| 7514. |
Question : Study the given fugure that depicts a stem modification and identify the missink links A,B C and D by selecting the correct option |
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Answer» internodesucker tap rootgreen leaf |
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| 7515. |
Question : Study the given figure of water movement in the leaf and mark the correct series of pressure gradient that occurs during transpiration. (I) Pressure gradient between the outside air and th air spaces of the leaf. (II) Pressure gradient between photosynthetic cells and on the water filled xylem in the leaf vein. |
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Answer» |
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| 7516. |
Question : Study the given figure carefully and select the true and false statement(s) in this demonstration. (a) Numerically this external pressure in figure (b) is equivalent to the osmotic potential of a solution, but the sign is opposite. (b) Osmotic pressure is due to the solute concentration. |
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Answer» (B) True |
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| 7517. |
Question : Study the given figure carefully and select the incorrect statements regarding this. (i) It represents a typical agarose gel electrophoresis in which lane 1 contains undigested DNA (ii) Smallest DNA bands are formed at A and largest DNA bands are formed at B (iii) The separated DNA fragments can be visualized after staining in the visible light (iv) The separated DNA bands are cut out from the agarose gel and extracted from the gel piece. this step is known as elution. |
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Answer» (i) and (ii) |
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| 7518. |
Question : Study the given figure and choose the correct option - |
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Answer» 2.`to` PARATHORMONE |
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| 7519. |
Question : Study the given diagram and give answer of questions a,b and c. (a) Name of plant ? (b) Clas of plant ? (c) Ploidy of rhizoids ? |
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Answer» `{:((a),(B),(c),),("sphagnum","LYCOPSIDA","Haploid",):}` |
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| 7520. |
Question : Study the given aquatic food chain and answer the questions that follow: (i) Give reasons why there is a continuous increase in the DDT content in different trophic levels of the chain. (ii) Name the phenomenon responsible for the increase in DDT content. |
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Answer» Solution :(i) When DDT ENTERS the FOOD chain it reaches water. Since, it not degradable it gets accumulated progressively at each TROPHIC level. AB it reaches higher trophic levels, the concentration of DDT also increases. (ii) BIOLOGICAL magnification. |
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| 7521. |
Question : Study the given chart and select the correct option w.r.t. genetic disorders. |
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Answer» AUTOSOMAL recessive |
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| 7522. |
Question : Study the four statements given below and answer the question which follow them. I) Inbreedingis necessary if we wantto develop a pureline in animals II) inbreedingexposes harmful recessive genes that are eliminated by selection III) continuous inbreeding usually reduces fertility and productivity IV) inbreeding depression can be overcome by outcrossingHow many of the above statements are correct? |
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Answer» Two |
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| 7523. |
Question : Study the given algae and asnwer the following questions :- (a) Name of alage ? (b) Tpe of sexual reproduction ? (c) Name of division ? (d) Stored food ? |
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Answer» Laminaria : Isogamous : Chlorophyta : STARCH |
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| 7524. |
Question : Study the four statements given below and select the two correct ones out of them. (i)A lion eating a deer and a sparrow feeding on grain ar ecologically similar in being consumers. (ii) Predator star fish Pisaster helps in maintainting species diversity of some invertebrates . (iii) Predators ultimately lead to the extinction of praey species. (iv) Production of chemicals such as nicotine, strychnine by the palnts are metablic disorders. |
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Answer» (II) and (III) |
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| 7525. |
Question : Study the following table showing the components of water potential in closely arrange mesophyll cells namely A, B and C {:("Cell","Osmotic Potential (MPa)","Pressure Potential (MPa)"),(A,-0.21,0.05),(B,-0.22,0.02),(C,-0.23,0.05):} Identify two of the following , which show the correct direction of water movement between two cells . I. ArarrB. IIBrarrC III.CrarrA.IVCrarrB |
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Answer» I ,II |
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| 7526. |
Question : Study the following table carefully and choose the incorrectly matched option - |
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Answer» |
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| 7527. |
Question : Study the following table and choose the option that correctly identifies A, B, C and D. , |
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Answer» |
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| 7528. |
Question : study the following table and find the correct pair |
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Answer» false whorl-like inflorescence - many sessible BISEXUAL folowers-leonotis |
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| 7529. |
Question : Study the following step which are followed during the process of gene therapy while treating a patient of SCID (i) Retrovirus infects lymphocytes extracted from bone marrow of the patient and cultured (ii) Engineered cells are injected into patient's bone marrow (iii) Normal allele is inserted into a retrovirus (iv) Retrovirus makes a DNA copy of its RNA. This DNA carrying the normal allele gets inserted into the chromosome of the host cell Arrangement the above given steps in correct sequence and select the correct option |
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Answer» (III),(i),(II),(IV) |
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| 7530. |
Question : Study the following statements with respect to human cardiovascular system and choose the correct one. |
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Answer» All the openings that ALLOW the flow of deoxygenated blood into right atrium are GUARDED by valves whereas the openings of pulmonary veins have no valves |
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| 7531. |
Question : Study the followingstatements regarding Bt toxins produced bybacteriumBacillus thuringiensis andselect the correct one |
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Answer» Most strains of Bacilus thuringiensis produceproteins that kill certain insects such as LEPIDOPTERANS, coleopterans and dipterans |
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| 7532. |
Question : Study the following statements and select the incorrect ones. (i) 'Bt' in 'Bt cotton' indicates that it is a genetically modified crop produced through biotechnology (ii) The anticoagulant 'hirudin' is being produced from transgenic Brassica napus seeds (iii) 'Flavr Savr' transgenic tomatoes remain fresh for a longer period than the normal tomato variety (iv) Golden rice is a transgenic variety of Oryza sativa, which is rich in beta-carotene and helps to prevent night blindness. |
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Answer» (i) only |
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| 7533. |
Question : Study the following statements and select the correct ones. i) Organisms restricted to a narrow range of temperatures are called eurythermal. ii) Organisms capable of tolerating a wide range of temperature are called stenothermal organisms. iii) The levels of thermal tolerance of different species determine to a large extent their geographical disrributio. iv) Temperature affects the kinetics of enzymes. |
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Answer» (i) and (II) |
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| 7534. |
Question : Study the following statements and select the correct ones (i) Methanogens are archeabacteria which produce methane in marshy areas (ii) Nostoc is a filamentous blue green alga which fixes atmospheric nitrogen. (iii) Many membres of the genus Glomus form my corrhiza. |
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Answer» (i) and (II) |
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| 7535. |
Question : Study the following statement and choose the option: (I) Tapetum nourishes the developing pollen grains (II) Hilum represents the junctions between ovule and funicle (III) In aquatic plant such as water hyacinth and water lily, pollination by water (IV) The primary endosperm nucleus is triploid(A) I and II are correct but III and IV are incorrect(B) I, II and IV are correct but III is incorrect(C) II, III and IV are correct but I is incorrect(D) I and IV are correct but II and III are incorrect |
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Answer» I and II are CORRECT but III and IV are incorrect |
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| 7536. |
Question :Study the following statements.A) Glucose is a higb threshold substance. B) Urine is concentrated in Henle's loop C) Haemodialysis removes urea, uric acid, glucose and water. D) Plasma proteins are filtered outCorrect ones of the above are |
| Answer» Answer :C | |
| 7537. |
Question : Study the followingstatements and select the correct ones |
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Answer» AUXIN is transported from BASE to tip in large quantities |
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| 7538. |
Question : Study the following pathogens I Yersinia pestis II. Borrelia sp III. Odium albicans IV. Microbacterium leprae V. Haemophilus gallinarium Which of the above cause damage to poultry industry? |
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Answer» I and IV |
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| 7539. |
Question : Study the following pedigree. The transmission of the trait indicates |
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Answer» AUTOSOMAL dominance |
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| 7540. |
Question : Study the following pathogens: |
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Answer» Yersinia pestis |
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| 7541. |
Question : Hormone that maintains the blood glucose level within the limit is |
| Answer» Answer :A | |
| 7542. |
Question : Study the following figures and identify the enzymes involved in steps I and II. |
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Answer» EcoRl and DNA Ligase |
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| 7543. |
Question : Study the following flow chart. Name the hormones involved at each stage. Explain their functions. |
Answer» Solution : Hypothalamus secretes gonadotropin releasing hormone (GnRH) which stimulates the ANTERIOR lobe of pituitary gland to secrete LH (Lutenising hormone) and FSH (Follicle STIMULATING hormone). LH stimulate Leydig cells and causes the secretion of testosterone from the testes. FSH stimulates Sertoli cells of the testies to secrete an androgen-binding protein (ABP) that concentrates testosterone in seminiferous tubules. It also causes the secretion of some factors which help in SPERMATOGENESIS. |
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| 7544. |
Question :Study the following flow chart and identify the attributes X and Y. |
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Answer» |
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| 7545. |
Question : Study the following figures Identify the true statement with referrence to psi values of A, B and C |
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Answer» A greater than B but LESS than C |
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| 7546. |
Question : Study the following flow chart and choose the correct option. |
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Answer» 'B' and '0' cause a positive change while 'I' and 'E' cause a negative change in 'N' |
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| 7547. |
Question :Study the following figure. The correct one about 'A', 'B', 'C' and 'D' is |
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Answer» 'A' is bile duct while 'C' is ILEUM |
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| 7548. |
Question : Study the following cross and answer the questions.Write the genotypes of Father,Mother and Son. |
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Answer» SOLUTION :FATHER `I^A` i MOTHER `I^B` i Son-ii |
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| 7549. |
Question : Study the following cross and answer the questions.The type of dominance of human blood group inheritance is_________ |
| Answer» SOLUTION :Co-dominance | |
| 7550. |
Question : Study the following columns and choose the correct option. |
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Answer» A B C D |
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