24277 + Interview Questions in Biology in Class 12 Page 443 InterviewSolution

22101.	Question : An anticoagulant is
Answer» Heparin Hirudin EDTA All the above Answer :D

Discussion

22102.	Question : An antibiotic gene in a vector usually helps in the selection of
Answer» COMPONENT CELLS Transformed cells Recombinant cells NONE of the above Solution :N/A

Discussion

22103.	Question : An anti-bacterial compound that prevents mastitis in cows is:
Answer» α-1-antitrypsin Lysostaphin Lysozyme Alginate lyase Answer :B

Discussion

22104.	Question : An antibiotic called 'Wonder Drug' was used to treat the wounded soldiers of America during World War-II. Name the drug and the scientist who discovered it.
Answer» SOLUTION :PENICILLIN, ALEXANDER FLEMING.

Discussion

22105.	Question : An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give one reason.
Answer» ANSWER :A::D

Discussion

22106.	Question : An anther with malfunctioning tapetum often fails to produce viable male gametophyte. Give reason.
Answer» Solution :TAPETUM is a NUTRITIVE tissue, which provides nutrients for DEVELOPING pollen grains. Pollen grains represent MALE gametophye.

Discussion

22107.	Question : An animal in which metameric segmentation is present ?
Answer» SAND worm Pin worm Round worm Hook worm Answer :A

Discussion

22108.	Question : An angiosperm having monarch xylem is
Answer» CASUARINA Trapa strychnos Urtica Answer :B

Discussion

22109.	Question : An aneuploidy disorder of human is
Answer» TURNER's syndrome Thalassemia Down's syndrome Colour blindness Answer :A

Discussion

22110.	Question : An analysis of chromosomal DNA using the southern hybridisation technique doesn't use
Answer» Electrophoresis Blotting Autoradiography PCR Solution :PCR

Discussion

22111.	Question : An analysis of chromosomal DNA using the Southern hybridisation technique does not use
Answer» ELECTROPHORESIS BLOTTING AUTORADIOGRAPHY PCR SOLUTION :PCR

Discussion

22112.	Question :An analysis of chromosomal DNA using the southern hybridization technique does not use :
Answer» Electrrophoresis Bloting Autoradiography PCR Answer :D

Discussion

22113.	Question : An anylysis of chromosomal DNA using the southern hybridisation technique does not use
Answer» Electrophoresis BLOTTING AUTORADIOGRAPHY POLYMERASE Chain Reaction Answer :A

Discussion

22114.	Question : An analysis of chromosomal DNA using the Southern hybridization technique does not use:
Answer» PCR Electrophoresis Blotting Autoradiography Answer :A

Discussion

22115.	Question : An anaerobic bacteria capable of atmosphericN_2 fixation is:
Answer» Chlorobium Azotobacter Rhodospirillum CLOSTRIDIUM ANSWER :D

Discussion

22116.	Question : An amino acid often involved in forming interchain bounds is
Answer» Ala Cys Asp Met. Solution :N//A

Discussion

22117.	Question : An almond shaped structure in hypothalamus that controls moods mainly anger and rage is called_____.
Answer» ANSWER :Ambygdala

Discussion

22118.	Question : An allohexaploidy contains
Answer» Six different GENOMES Six copies of THREE different genomes Two copies of three different genomes Six copies of ONE genome Answer :B

Discussion

22119.	Question : An allele is said to be dominant if it is expressed in :
Answer» HETEROZYGOUS CONDITION only HOMOZYGOUS condition only Both heterozygous and homozygous conditions Gametes Answer :C

Discussion

22120.	Question : An allele which causes death of an organism ………….
Answer» SOLUTION :LETHAL ALLELE

Discussion

22121.	Question : An allele is ...............
Answer» another word for a gene Alternate forms of a gene MORPHOLOGICAL expression of a gene genetic MAKE up of an organism Answer :B

Discussion

22122.	Question : An alga which can be employed as food for human being is
Answer» Ulothrix CHLORELLA Spirogyra Polysiphonia Solution :(b) Chlorella is potential food SOURCE because it is high in protein and other ESSENTIAL nutrients when DRIED, it contains about 45% protein, 20% fat, 20% carbohydrate, 5% fibre and 10% MINERALS and vitamins.

Discussion

22123.	Question : An alga very rich in protein is
Answer» Spirogyra Ulothrix Oscillatoria Chlorella Solution :(d) DRIED Chlorella pyrenoidosa CONTAINS APPROXIMATELY 50-55% crude PROTEIN (more than that in dried beef, soyabean meal and dried yeast).

Discussion

22124.	Question : An algae which is rich in protein is
Answer» Ulothrix Spirogyra Nostoc Chlorella Answer :D

Discussion

22125.	Question : An alga used as food byastronauts is
Answer» ANABAENA NOSTOC Synechococus Chlamydomonas Answer :C

Discussion

22126.	Question : An aleg which can be employed as foodfor human beings
Answer» ULOTHRIX CHLORELLA SPIROGYRA Polysiphonia Answer :B

Discussion

22127.	Question : An aldehyde of vitamin A is
Answer» RETINAL OPSIN IRIS comea ANSWER :A

Discussion

22128.	Question : An aggregate fruit is one which develops from:
Answer» Multicarpellary SYNCARPOUS gynoecium Multicarpellary apocarpus gynoecium Complete inforescence Multicarpellary SUPERIOR ovary Answer :B

Discussion

22129.	Question : An adult male produces an average of ................. sperms per day
Answer» a) 200 MILLION b) 300 million c) 300 billion d) 120 million Solution : 200 million

Discussion

22130.	Question : An adenohypophysis hormone which is regulated by feedback mechanism is :-
Answer» TSH Oxytocin Calcitonin cortisone Answer :A

Discussion

22131.	Question : An active site of an enzyme is a crevice or pocket into which the substrate fits. These active sites are present on :-
Answer» PRIMARY STRUCTURE of protein Secondary structure of protein Tertiary structure of protein All of the above Answer :C

Discussion

22132.	Question : An acromion process is characteristically found in the
Answer» PELVIC GIRDLE of MAMMALS PECTORAL girdle of mammals Skull of frog Sperm of mammals Answer :B

Discussion

22133.	Question : An achenial fruit in which the seed is attached to pericarp only at one point and rest of thee pericarp remains free from the seed occurs in
Answer» tarxacum LITCHI chinenisis mirabils JALAPA HELIANTHUS ANSWER :C

Discussion

22134.	Question : An accumulation of CO_(2) ,ozone and other pollution - related gases in the lower atmosphere, trapping heat near the earth's surface leading to global warming is known as :
Answer» GREEN HOUSE EFFECTS BIOMASS ENERGY pyramid Autecology Answer :A

Discussion

22135.	Question : An abnormal increase in number of RBCs in blood is_____.
Answer» Leukaemia Leucocytosis Thrombocytosis Polycythemia Answer :D

Discussion

22136.	Question : An abrupt of discontinuous change which is inheite
Answer» An ABRUPT or discontinous change which is inherited A FACTOR for plant growth A vhange which AFFECT parents only and is never inheriter A change which AFFECTS the offspring of `F_(2)` GENERATION Answer :A

Discussion

22137.	Question : An abnormality not due to recessive gene is
Answer» Phenylketonuria Alkaptonuria Polydactyly Tay-Sach's syndrome Answer :C

Discussion

22138.	Question :An abnormal human baby with 'XXX' sex chromosomes was born due toa) Formation of abnormal sperms in the fatherb) Formation of abnormal ova in the motherc) Fusion of two ova and one spermd) Fusion of two sperms and one ovum
Answer» FORMATION of abnormal SPERMS in the FATHER Formation of abnormal ova in the mother Fusion of two ova and one sperm Fusion of two sperms and one ovum Answer :B

Discussion

22139.	Question : An 80000 years old fossil was recovered from igneous rock, then which of the following method would have been used to find its age
Answer» Uranium-lead METHOD Carbon-14 method POTASSIUM -ARGON method Both (a) and (B) ANSWER :A

Discussion

22140.	Question : An abnormal human baby with XXX sex chromosomes was born due to
Answer» formation of ABNORMAL OVA in the mother fusion of TWO ova and ONE sperm fusion of two sperms and one ovum formationof abnormal sperms in the father Answer :A

Discussion

22141.	Question : An abnormal gene is replaced by normal gene.It is called
Answer» GENE therapy Cloning Mutation Gene flow Answer :A

Discussion

22142.	Question : An abnormal gene is replaced by normal gene. It is called
Answer» GENE THERAPY CLONING Mutation None of the above Solution :Gene therapy

Discussion

22143.	Question : Amyloplasts are connected with storage of_____
Answer» ANSWER :STARCH

Discussion

22144.	Question : Amygdala is
Answer» Component of limbic system Characteristic ARRANGEMENT of GRAY and WHITE matter in cerebellum Tree-like arrangement of neurons in cerebrum Component of mid-brain Answer :A

Discussion

22145.	Question : Amrita Devi Bishnoi Wildlife Protection Award is for the individuals or communities from rural areas that have shown extraordinary courage in
Answer» reducing environment pollution reducing global WARMING protecting wildlife reforestation in DEFORESTED area. Solution :The Government of India has instituted Amrita Devi Bishnoi Wildlife Protection Award for individuals or communities from rural AREAS that have shown extraordinary COURAGE and dedication in protecting wildlife.

Discussion

22146.	Question : Amphistomatal condition is observed in the leaves of
Answer» Dicots Monocots Gymnosperms 1 and 2 Answer :D

Discussion

22147.	Question : Amphibolic cycle that occurs only in aerobic condition is
Answer» EMP pathway GLYCOLYSIS KREBS cycle E-D pathway ANSWER :C

Discussion

22148.	Question : Amphibians were dominant during
Answer» Carboniferous Silurian Ordovician Cambrian Answer :A

Discussion

22149.	Question : Amphibians were dominant during ____ period.
Answer» CARBONIFEROUS SILURIAN Ordovician Cambrian Solution :REFER to ASNWER 95.

Discussion

22150.	Question : Amphetamines are stimulants of the CNS, whereas barbiturates are ___
Answer» CNS stimulat Both a and b Hallucinogenic CNS DEPRESSANTS Solution :CNS depressants

Discussion

Explore topic-wise InterviewSolutions in .

Question : An anticoagulant is

Question : An antibiotic gene in a vector usually helps in the selection of

Question : An anti-bacterial compound that prevents mastitis in cows is:

Question : An antibiotic called 'Wonder Drug' was used to treat the wounded soldiers of America during World War-II. Name the drug and the scientist who discovered it.

Question : An anther with malfunctioning tapetum often fails to produce viable male gametophytes. Give one reason.

Question : An anther with malfunctioning tapetum often fails to produce viable male gametophyte. Give reason.

Question : An animal in which metameric segmentation is present ?

Question : An angiosperm having monarch xylem is

Question : An aneuploidy disorder of human is

Question : An analysis of chromosomal DNA using the southern hybridisation technique doesn't use

Question : An analysis of chromosomal DNA using the Southern hybridisation technique does not use

Question :An analysis of chromosomal DNA using the southern hybridization technique does not use :

Question : An anylysis of chromosomal DNA using the southern hybridisation technique does not use

Question : An analysis of chromosomal DNA using the Southern hybridization technique does not use:

Question : An anaerobic bacteria capable of atmosphericN_2 fixation is:

Question : An amino acid often involved in forming interchain bounds is

Question : An almond shaped structure in hypothalamus that controls moods mainly anger and rage is called_____.

Question : An allohexaploidy contains

Question : An allele is said to be dominant if it is expressed in :

Question : An allele which causes death of an organism ………….

Question : An allele is ...............

Question : An alga which can be employed as food for human being is

Question : An alga very rich in protein is

Question : An algae which is rich in protein is

Question : An alga used as food byastronauts is

Question : An aleg which can be employed as foodfor human beings

Question : An aldehyde of vitamin A is

Question : An aggregate fruit is one which develops from:

Question : An adult male produces an average of ................. sperms per day

Question : An adenohypophysis hormone which is regulated by feedback mechanism is :-

Question : An active site of an enzyme is a crevice or pocket into which the substrate fits. These active sites are present on :-

Question : An acromion process is characteristically found in the

Question : An achenial fruit in which the seed is attached to pericarp only at one point and rest of thee pericarp remains free from the seed occurs in

Question : An accumulation of CO_(2) ,ozone and other pollution - related gases in the lower atmosphere, trapping heat near the earth's surface leading to global warming is known as :

Question : An abnormal increase in number of RBCs in blood is_____.

Question : An abrupt of discontinuous change which is inheite

Question : An abnormality not due to recessive gene is

Question :An abnormal human baby with 'XXX' sex chromosomes was born due toa) Formation of abnormal sperms in the fatherb) Formation of abnormal ova in the motherc) Fusion of two ova and one spermd) Fusion of two sperms and one ovum

Question : An 80000 years old fossil was recovered from igneous rock, then which of the following method would have been used to find its age

Question : An abnormal human baby with XXX sex chromosomes was born due to

Question : An abnormal gene is replaced by normal gene.It is called

Question : An abnormal gene is replaced by normal gene. It is called

Question : Amyloplasts are connected with storage of_____

Question : Amygdala is

Question : Amrita Devi Bishnoi Wildlife Protection Award is for the individuals or communities from rural areas that have shown extraordinary courage in

Question : Amphistomatal condition is observed in the leaves of

Question : Amphibolic cycle that occurs only in aerobic condition is

Question : Amphibians were dominant during

Question : Amphibians were dominant during ____ period.

Question : Amphetamines are stimulants of the CNS, whereas barbiturates are ___