24277 + Interview Questions in Biology in Class 12 Page 241 InterviewSolution

12001.	Question : Name the enzyme produced by lac Z gene present in lac operon.
Answer» SOLUTION :`BETA`-GALACTOSIDASE or Beta galactosidase

Discussion

12002.	Question : Name the enzyme needed fora. break down of lactose into glucose and galactose. b. peptide bond formation during translation.c. transcription of all kinds of RNA in bacteria. d. joining okazaki fragments.
Answer» Solution :a `beta`-GALACTOSIDASE, permease, transacetylase b. Peptidyl transferase c. DNA dependent RNA polymerase d. DNA LIGASE

Discussion

12003.	Question : Name the enzyme in synptic cleft that hydrolysis the acetylcholine into choline.
Answer» ANSWER :ACETYLCHOLINE ESTERASE

Discussion

12004.	Question : Name the enzyme in HIV that changes RNA into DNA.
Answer» ANSWER :REVERSE TRANSCRIPTASE

Discussion

12005.	Question : Name the enzyme found in the acrosomal tip of sperm cell.
Answer» SOLUTION :HYALURONIDASE

Discussion

12006.	Question : Name the enzyme commonly used to dissolve the bacterial cell wall.
Answer» SOLUTION :LYSOZYME

Discussion

12007.	Question : Name the enzyme by which the HIV genome replicates in the host cell.
Answer» SOLUTION : REVERSE TRANSCRIPTASE.

Discussion

12008.	Question : Name the emotional part of the brain.
Answer» SOLUTION :The EMOTIONAL PART of the BRAIN is AMYGDALA.

Discussion

12009.	Question : Name the ecological pyramid that can be inverted in a tree eco-system.
Answer» SOLUTION :PYRAMID of NUMBER.

Discussion

12010.	Question : Name the duct arise from gall bladder.
Answer» ANSWER :CYSTIC DUCT

Discussion

12011.	Question : Name the dual exocrine as well as endocrine gland. Which hormones does it secrete?
Answer» Solution :PANCREAS which secretes INSULIN, GLUCAGON nad SOMATOSTATIN.

Discussion

12012.	Question : Name the double ring compounds and single ring compounds in the DNA molecule.
Answer» Solution :Purines (Adenine and GUANINE) are double RING compounds while pyrimidines (Thymine and CYTOSINE) are SINGLE ring compounds.

Discussion

12013.	Question : Name the dominant producers in a aquatic ecosystem. What other name could you give to primary consumers?
Answer» SOLUTION :(a) PLANTS. (B) HERBIVORES.

Discussion

12014.	Question : Name the DNA polymerase which is usually used for PCR?
Answer» SOLUTION :TAQ POLYMERASE,

Discussion

12015.	Question : Name the district in Kerala a. which has the highest forest coverage? b. which has the lowest forest coverage?
Answer» SOLUTION :a. IDUKKI B. ALAPPUZHA (has no FOREST)

Discussion

12016.	Question : Name the disorder with the following chromosome complement (i) 22 pairs of autosomes+ XXY.(ii) 22 pairs of autosomes+21st chromosome+XY.
Answer» SOLUTION :(i) Klinefetter.s SYNDROME(II) Down.s syndrome

Discussion

12017.	Question : Name the disorders caused due to incomplete sex linkage.
Answer» Solution :Retinitis pigmentosa, Nephritis, and total colour BLINDNESS are the disorders CAUSED due to INCOMPLETE SEX linkage.

Discussion

12018.	Question : Name the disorder caused by the under secretion of thyroxine in children.
Answer» SOLUTION :CRETINISM is the DISORDER seen in children DUE to under SECRETION of thyroxine.

Discussion

12019.	Question : Name the diseases for which vaccines were developed by Louis Pasteur.
Answer» SOLUTION :CHOLERA,ANTHRAX and RABIES

Discussion

12020.	Question : Name the diseases caused by the following organism: Wuchereria bancrofti.
Answer» SOLUTION :LYMPHATIC FILARIASIS

Discussion

12021.	Question : Name the diseases caused by following organisms :(a) Rhinovirus. (b) Epidermophyton..(c) Salmonella typhi(d) Wuchereria malayi(e) Plasmodium vivax.
Answer» SOLUTION :COMMON COLD

Discussion

12022.	Question : Name the diseases (a) (A)_______: The liver is affected, skin and eyes turn yellow due to the deposit of bile pigments. (b) (B)____: it is the ejection of stomach contents through the mouth. This reflex action is controlled by the vomit centre in the medulla. A feeling of neusea precedes vomiting. (c) (C)____: The abnormal frequency of bowel movement and increased liquidity of the faecal discharge is known as diarrhoea. It reduces the absorption of food. (d) In (D)____: the faeces are retained within the rectum as the bowel movements occur irregularity. (e) (E)____: In this condition the food is not properly digested leading to a feeling of fullness.
Answer» ANSWER :(A) Jaundice (B) VOMITING (C) DIARRHOEA (D) Constipation (E) Indigestion.

Discussion

12023.	Question : Name the diseases caused by following organisms : a) Rhino virus. b) Epidermophyton. c) Salmonella typhi. d) Wuchereria malayi. e) Plasmodium vivax.
Answer» Solution :a) Rhino VIRUS - Common cold B) EPIDERMOPHYTON - Ringworm skin infection c) Salmonella typhi - typhoid d) Wuchereria malayi - Elephentiasis/Filariasis e) Plasmodium VIVAX - Malaria

Discussion

12024.	Question : Name the diseases and its pathogen.
Answer» SOLUTION :Fungus - they make rust diseases. e.g. Brown rust of WHEAT, red rot of sugarcane Bacteria- Late BLIGHT of potato, black rot of crucifers VIRUS - Tobacco MOSAIC, urnip mosaic

Discussion

12025.	Question : Name some diseases that can be treated using interferons.
Answer» SOLUTION :Interferons are USED for the treatment of various diseases like cancer, AIDS, MULTIPLE sclerosis, hepatitis C and herpes ZOSTER.

Discussion

12026.	Question : Name the disease resistant variety of wheat developer against Hill bunt desease.
Answer» ANSWER :HIMGIRI

Discussion

12027.	Question : Name the disease resistant crop varieties developed by hybridisation and selection
Answer» SOLUTION :

Discussion

12028.	Question : Name the disease diagnosed by Widal test.
Answer» SOLUTION :TYPHOID

Discussion

12029.	Question : Name the disease caused by fungi in plants.
Answer» BLACK rot Turnip mosaic Tobaco mosaic RUST SOLUTION :Rust

Discussion

12030.	Question : Name the disease associated with accumulation of nitrates in human body.
Answer» ANSWER :A::B::C::D

Discussion

12031.	Question : Name the disease associated with cadmium pollution.
Answer» ANSWER :A::D

Discussion

12032.	Question : Name the disease caused by Haemophillus influenzae.
Answer» SOLUTION :PNEUMONIA.

Discussion

12033.	Question : Name the discoverers of antigen A, B and AB.
Answer» Solution :Antigens A and Antigen B was discovered by KARL Landsteiner. Antigen AB was discovered by Von DE Castelle and Sturli.

Discussion

12034.	Question : Name the different species of malarial parasites and also mention which is the fatal one?
Answer» Solution :PLASMODIUM vivax Plasmodium ovale Plasmodium MALARIAE Plasmodium FALCIPARUM Plasmodium falciparum causes FATAL MALARIA.

Discussion

12035.	Question : Name the different nucleotides of DNA.
Answer» SOLUTION :(a) Deoxyadenylic ACID or decoy ADENOSINE monophosphate (d AMP) (b) Deoxyguanylic acid or deoxyguanosine monophosphate ((GMP) (c) Deoxycytidylic acid or deoxycytidine monophosphate (d CMP) (d) Deoxythymidylic acid or deoxythymidine monophosphate (d TMP).

Discussion

12036.	Question : Name the diagnostic test which confirms typhoid.
Answer» SOLUTION :WIDAL TEST.

Discussion

12037.	Question :Name the diagnostic test for AIDS.
Answer» SOLUTION :ELISA TEST or PCR test

Discussion

12038.	Question : Name the Diagnostic Test for AIDS.
Answer» SOLUTION :ELISA TEST

Discussion

12039.	Question : Name the device that removes dust particles, SO_2 ammonia from polluted air.
Answer» ANSWER :B::C

Discussion

12040.	Question : Name the daignostic test which confirms typhoid.
Answer» SOLUTION :WIDAL TEST

Discussion

12041.	Question : Name the cuasative organism of filariasis and mention the site of infection of parasite.
Answer» SOLUTION :CAUSATIVE ORGANISMS of filariasis is wuchereria bancrofti(FILARIAL worm).The site of INFECTION is lymph vessels and lymph nodes.

Discussion

12042.	Question : Name the cry genes that control cotton bollworms and corn borer respectively?
Answer» Solution :The crygenes that control cotton BOLLWORMS are CRY IAC and cry II Ab and control CORN borers by cry IAB.

Discussion

12043.	Question : Name the crop which is developed by mutation breeding
Answer» Solution :MUNG bean which has resistance to YELLOW mosaic virus and POWDERY MILDEW.

Discussion

12044.	Question : Name the crop and its variety for insect pest resistance
Answer» SOLUTION :

Discussion

12045.	Question : Name the cranial nerves of human beings viz.
Answer» OPTIC, AUDITORY, FACIAL, hypoglossal Oculomotor, auditory, ABDUCENS, hypoglossal Optic, facial, auditory, glosso-pharyngeal Optic, facial, abducens, glosso-pharyngeal Answer :C

Discussion

12046.	Question : Name the cord which vibrates in larynx to produce sound
Answer» ANSWER :VOCAL CORD

Discussion

12047.	Question : Name the contraction centre of the myogenic heart.
Answer» ANSWER :Sinuatrial NODE

Discussion

12048.	Question : Name the connection between the pulmonary trunk and systemic aorta. What does it represent?
Answer» SOLUTION :Ligamentum arteriosum. It REPRESENTS the REMNANT of ductus arteriosus of FOETUS.

Discussion

12049.	Question : Name the connecting link for the following groups of organisms. (a) Annelida and Arthropoda(b) Reptiles and Aves (c) Pisces and Amphibians (d) Reptiles and Mammals
Answer» SOLUTION :(a) PERIPATUS (b) ARCHEOPTERYX (C) Lung fish (d) Platypus

Discussion

12050.	Question : Name the connecting link between reptiles and birds.
Answer» SOLUTION :Archaeopteryx is the CONNECTING LINK between reptiles and BIRDS.

Discussion

Explore topic-wise InterviewSolutions in .

Question : Name the enzyme produced by lac Z gene present in lac operon.

Question : Name the enzyme needed fora. break down of lactose into glucose and galactose. b. peptide bond formation during translation.c. transcription of all kinds of RNA in bacteria. d. joining okazaki fragments.

Question : Name the enzyme in synptic cleft that hydrolysis the acetylcholine into choline.

Question : Name the enzyme in HIV that changes RNA into DNA.

Question : Name the enzyme found in the acrosomal tip of sperm cell.

Question : Name the enzyme commonly used to dissolve the bacterial cell wall.

Question : Name the enzyme by which the HIV genome replicates in the host cell.

Question : Name the emotional part of the brain.

Question : Name the ecological pyramid that can be inverted in a tree eco-system.

Question : Name the duct arise from gall bladder.

Question : Name the dual exocrine as well as endocrine gland. Which hormones does it secrete?

Question : Name the double ring compounds and single ring compounds in the DNA molecule.

Question : Name the dominant producers in a aquatic ecosystem. What other name could you give to primary consumers?

Question : Name the DNA polymerase which is usually used for PCR?

Question : Name the district in Kerala a. which has the highest forest coverage? b. which has the lowest forest coverage?

Question : Name the disorder with the following chromosome complement (i) 22 pairs of autosomes+ XXY.(ii) 22 pairs of autosomes+21st chromosome+XY.

Question : Name the disorders caused due to incomplete sex linkage.

Question : Name the disorder caused by the under secretion of thyroxine in children.

Question : Name the diseases for which vaccines were developed by Louis Pasteur.

Question : Name the diseases caused by the following organism: Wuchereria bancrofti.

Question : Name the diseases caused by following organisms :(a) Rhinovirus. (b) Epidermophyton..(c) Salmonella typhi(d) Wuchereria malayi(e) Plasmodium vivax.

Question : Name the diseases caused by following organisms : a) Rhino virus. b) Epidermophyton. c) Salmonella typhi. d) Wuchereria malayi. e) Plasmodium vivax.

Question : Name the diseases and its pathogen.

Question : Name some diseases that can be treated using interferons.

Question : Name the disease resistant variety of wheat developer against Hill bunt desease.

Question : Name the disease resistant crop varieties developed by hybridisation and selection

Question : Name the disease diagnosed by Widal test.

Question : Name the disease caused by fungi in plants.

Question : Name the disease associated with accumulation of nitrates in human body.

Question : Name the disease associated with cadmium pollution.

Question : Name the disease caused by Haemophillus influenzae.

Question : Name the discoverers of antigen A, B and AB.

Question : Name the different species of malarial parasites and also mention which is the fatal one?

Question : Name the different nucleotides of DNA.

Question : Name the diagnostic test which confirms typhoid.

Question :Name the diagnostic test for AIDS.

Question : Name the Diagnostic Test for AIDS.

Question : Name the device that removes dust particles, SO_2 ammonia from polluted air.

Question : Name the daignostic test which confirms typhoid.

Question : Name the cuasative organism of filariasis and mention the site of infection of parasite.

Question : Name the cry genes that control cotton bollworms and corn borer respectively?

Question : Name the crop which is developed by mutation breeding

Question : Name the crop and its variety for insect pest resistance

Question : Name the cranial nerves of human beings viz.

Question : Name the cord which vibrates in larynx to produce sound

Question : Name the contraction centre of the myogenic heart.

Question : Name the connection between the pulmonary trunk and systemic aorta. What does it represent?

Question : Name the connecting link for the following groups of organisms. (a) Annelida and Arthropoda(b) Reptiles and Aves (c) Pisces and Amphibians (d) Reptiles and Mammals

Question : Name the connecting link between reptiles and birds.