Multiple Choice Questions on Mendelian Genetics 1. The innate tendency of offspring to resemble their parents is called a) varaition b) heridity c) inheritance d) resemblance 2. The tendency of offspring to differ from parents is called a) varaition b) heridity c) inheritance d) resemblance 3. ho is regarded as the father of genetics! a) "ateson b) Morgan c) Mendel d) #atson $. Mendel%s e&perimental material #as a) 'isum sativum b) (athyrus odaratus odaratus c) ry*a sativa d) Mirabilis +alappa ,. Mendel presented his #or-s in a) atural /istory 0ociety in ussia b) atural /istory 0ociety 0ociety in merica c) atural /istory 0ociety in "runn d) atural /istory 0ociety in Germany . Mendel%s findings #ere rediscovered by a) 4e vries b) Correns c) tschermad) all of the above 5. The physical e&pression or appearance of a character is called as a) morphology b) geneoype c) phenotype d) ecotype 6. Genotype is the a) genetic constitution b) genetic constitution of the the phenotype c) trait e&pressed d) e&pressed genes 7. The alternate forms of a gene is called
a) recessive character b) dominant character character c) alleles d) alternative gene 18. 9f the genotype consists of only one type of allele. 9t is called a) homo*ygous b) hetreo*ygous c) momoallelic d) uniallelic 11. The number of types of gametes produced by a homo*ygous individual is a) 1 b) 2 c) 3 d) many 12. 9f different alleles are present in the same genotype then it is called a) homo*ygous b) hetreo*ygous c) diallelic d) polyallelic 13. 4uring his e&periments: Mendel called genes by the term a) factors b) traits c) characters d) ;ualities 1$. The number of types of gametes produced by a hetero*ygous individual is a) 1 b) 2 c) 3 d) many 1,. Mendel #as a a) ustrian biology teacher b) ustrian ustrian monc) ustrian scientist d) ustrian mathematician ns#ers 1. b) heridity 2. a) varaition 3. c) Mendel $. a) 'isum sativum ,. c) atural /istory 0ociety in "runn . d) all of the above 5. c) phenotype 6. b) genetic constitution of the phenotype
7. c) alleles 18. a) homo*ygous 11. a) 1 12. b) hetreo*ygous 13. a) factors 1$. b) 2 1,. b) ustrian mon- MCQ on Mendelian Genetics 1. The e&perimental material garden pea used by Mendel is a a) cross fertili*ed crop b) both self and cross fertili*ed c) self fertili*ed crop d) may vary #ith ecotype 2. Mendel emasculated garden pea plant.
c) la# of dominance d) la# of independent assortment 6. The character that is e&press in the =1 is called the a) recessive character b) dominant character c) co dominant character d) none of these 7. The recessive character #ill e&press in a) =1 b) =2 c) both a and b d) =3 only 18. Monohybrid ratio is a) 7>3>3>1 b) 7>1 c) 7>3>1 d) 3>1 11. The phenotypic ratio of a monohybrid cross is a) 3>1 b) 1>2>1 c) 2>1>1 d) 7>3>3>1 12. The genotypic ratio of a monohybrid cross is a) 3>1 b)1>2>1? c) 2>1>1 d) 7>3>3>1 13. hich of the follo#ing statements are true regarding (a# of segregation a) alleles separate #ith each other during gametogenesis b) The segregation of factors is due to the segregation of chromosomes during meiosis c) (a# of segregation is called as la# of purity of gametes d) all of the above 1$. =3 generation is obtained by a) selfing of =1 b) selfing of =2 c) crossing of =1 and =2 d) none of these 1,. The crossing of =1 to any one of the parents is called a) bac- cross b) test cross c) =1 cross d) all of these ns#ers 1.c) self fertili*ed crop
2. b) removal of anthers before dehiscence 3. a) differing in a pair of contrasting character $. monohybrid cross ,. b) =1 . a) Garden pea #as true breeding 5. c) la# of dominance 6. b) dominant character 7. b) =2 18. d) 3>1 11. a) 3>1 12. b)1>2>1 13. d) all of the above 1$. a) selfing of =1 1,. a) bac- cross
Multiple Choice Questions on Mendelian Genetics 1. The crossing of =1 to homo*ygous recessive parent is called a) bac- cross b) test cross c) =1 cross d) all of these 2. The test cross is used to determine the a) genotype of the plant b) phenotype of the plant c) both a and b d)none of these 3. Monohybrid test cross ratio is a) 3>1 b) 2>1 c) 1>1 d) 7>3>3>1 $. The cross in #hich parents differ in t#o pairs of contrasting characters is called a) monohybrid cross b) dihybrid cross c) trihybrid cross d) tetrahybrid cross ,. The phenotypic dihybrid ratio is a) 7>3>2>1 b) 7>3>2>2 c) 1>1 d) 7>3>3>1 . 9n Mendels 4ihybrid cross: the phenotypic ratio of =2 for a single character is a) 7>3>2>1
b) 7>3>2>2 c) 3>1 d) 7>3>3>1 5. hich of the follo#ing statements is true regarding the @la# of independent assortment% a) factors assort independent of each other #hen more than one pair of characters are present together b) independent assortment leads to variation c) independent assortment leads to formation of ne# combinations of characters d) all of these 6. The 4ihybrid test cross ratio is a) 7>3>2>1 b) 7>3>2>2 c) 1>1>1>1 d) 7>3>3>1 7.
c) Mendel s;uare d) Morgan s;uare 1,. The title of Mendel%s paper #hile presenting at "runn atural /istory 0ociety in 16, #as a) (a#s of inheritance b) (a#s of heridity c) <&periments on pea plants d) <&periments in plant hybridi*ation ns#ers> 1. b) test cross 2. a) genotype of the plant 3. c) 1>1 $.b) dihybrid cross ,. d) 7>3>3>1 . c) 3>1 5. d) all of these 6. c) 1>1>1>1 7. c)only one of the alleles 18. c) allelomorphs 11. a) "ac- cross 12.b) bac- cross 13. a) (in-age 1$. a) 'unnete s;uare 1,.d) <&periments in plant hybridi*ation MCQ on Genetics A Model rganisms 1. /ammerling%s e&perimental material to prove nucleus as the physical basis of heredity #as a) eurospora b) moeba c) cetabularia d) 4rosophila 2. Mendel%s e&perimental material #as a) 'isum sativum b) ry*a sativa c) Bigna sinensis d) rabidopsis thaliana 3. hich of the follo#ing is called as 4rosophila of the plant -ingdomD a) eurospora b) <.coli c) 'isum sativum d) rabidopsis thaliana $. The organism used to study 4 replication
a) eurospora crassa b) 4rosophila melanogaster c)
c) spergillus nidulans d) 0acharomyces cerviseae 12. Tetrad analysis confirmed the occurrence of crossing over during tetrad stage. This #as first reported in a) eurospora b) <.coli c) 'isum sativum d) rabidopsis thaliana 13. Creighton and McClintoc- provided cytological evidence for crossing over based on e&periments in a) mai*e b) rice c) pea d) rabidopsis 1$. 0e& determination in plants #as e&tensively investigated in a) 'isum sativum b) 'haseolus vulgaris c) Melandrium d) rabidopsis thaliana 1,. The most #idely used model for studying developmental biology and neurology
Model rganism a) 1Ac 2Aa 3Ad $Ac ,Ac Aa 5Ac 6Ac 7Ac 18Ab
11Ac 12Aa 13Aa 1$Ac 1,Ac Fseful 'osts> otes> Model rganisms Multiple Choice Questions on 4 1. ho introduced the term @ucleic cid!% a) Meisher b) obert "ro#n c) (ipmann d) ltmann 2. /ereditary information is indicated by a) 0e;uence of nucleic acids b) 'osition of nucleic acid c) umber of nucleic acid d) ll of these 3. The strongest evidence that 4 is the genetic material comes from a) The finding 4 is not present in the cytoplasm b) The fact that chromosome are made of 4 c) 0tudies of "acterial transformation d) The -no#ledge that 4 is present in the nucleus
$. ho among the follo#ing scientists developed cytochemical techni;ue for the detection of 4! a) =eulgen and ossenbec b) atson and Cricc) "eadle and Tatum d) noll and us-a ,. hich of the follo#ing scientists demonstrated that 4 HT and GHC! a) Griffth b) Meselson and 0tahl c) /ershey and Chase d) Chargaff . hich ratio is constant for 4! a) IG J TIC
b) I T J GI C c) I CJ FIG d) I FJ CIG 5. The dye involved in =eulgen reaction to stain 4 is a) Eanus green " b) "asic =uchsin c) eutral ed d) /aemo&ylin
6. 9f 38K of an organism%s 4 is thymine: then a) 58K guanine b) 28K is guanine c) 38K adenine d) both b and c 7. /ydrogen bonds bet#een cytosine and guanine are a) 1 b) 2 c) 3 d) $ 18. ucleotide arrangement in 4 can be seen by a) (ight microscope b)
5. b) "asic =uchsin 6. d) both b and c 7. c) 3 18. c) LAay crystallography
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MCQ on
. Genetic drift is on account of a) variations b) mutation c) increase in population d) decrease in population 5. ccording to eoA 4ar#inism: natural selection operates through a) =ighting bet#een organisms b) Bariations c) illing #ea-er organism d) 4ifferential reproduction 6. 0ympatric speciation develops reproductive isolation #ithout a) Geographic barrier b) barrier to mating c) barrier to gene flo# d) genetic change 7. Quic- change in phenotypes in a small band of colonisers is called a) =ounder effect b) Genetic bottle nec- c) Genetic grift d) Gene flo# 18. Genetic drift is found in a) 0mall population #ith or #ithout mutated genes b) large population #ith random mating c) plant population d) animal population 11.hich is related to reproduce isolation a) genetic isolation b)temporal isolation c) behavioural isolation d) all of these. 12. 9n #hich condition gene ratio remains constant in a species! a) gene flo# b) mutation c) random mating d) se&ual selection 13. (amarc- theory of organic evolution is usually -no#n as a) atural selection
b) 9nheritance of ac;uired characters c) 4escent #ith change d) continuity of fermplasm 1$. hich one is used for -no#ing #hether or not a population is evolving! a) 4egree of evolution b) Genetic drift c) 'roportion bet#een ac;uired v ariations d) /ardy einberg e;uation 1,. "alancing selection is concerned #ith successful reproduction of a) /omo*ygous recessives b) homo*ygous indivduals c) hetero*ygous individuals d) all of the above (earn more> Multiple Choice Questions on 1Ab 2Ad 3Ac $Ab ,Ab Ad 5Ad 6Aa 7Aa 18Aa 11Ad 12Ac 13Ab 1$Ad 1,Ac Multiple Choice Questions on
2. The first organisms #ere a) Chemoautotrophs b) utotrophs c)
a) Cycas b) Moss c) 0aacharomycetes d) 0pirogyra ,. "asic principles of embryonic development #ere pronounced by a) Bon "aer b) /aec-el c) Morgan d) eismann . hich of the follo#ing amino acids #as not found to be synthesised in Miller%s <&periment! a) lanine b) Glycine c) sparatic acid d) Glutamic acid 5. T#o oogeographical regions: separated by high mountain ranges: are a) riental and ustralian b) earctic and 'alaearctic c) 'alaearctic and riental d) eotrophical and
a) Camouflage b) Mullerian mimicry c) arning colouration d) 0ocial insects 18. Continuity of germplasm theory #as given by a) 4e Bries b) 4ar#in c) eismann d) (amarc- (earn more MCQ on
c) Chemoheterotrophs d) 'hotoautotrophs 17. Most abundant organic compound on earth is a) 'rotein b) Cellulose c) 0teroids d) (ipids 28. hich is not a vestigial organ of man! a) ails b) Third molar c) Coccy& d) 0egmented muscles of abdomen 21. Genetic drift operates only in a) (arge populations b) 0maller populations c) 9sland populations d) Mendealian populations 22. The animals of cold countries have relatively shorter and poorly developed ears: eyes: hairs and other phenotypic characters. This is -no#n by #hich la#! a) Cope%s la# b) 4ollo%s la# c) "ergmann%s la# d) llen%s la# 23. 'henomenon of @9ndustrial melanism% demonstrates a) Geographical isolation b) atural 0election c) eproductive isolation d) 9nduced mutation 2$. Convergent evolution is illustrated by a) at and 4og b) "acterium and 'roto*oan c) 0tarfish and Cuttle fish d) 4ogfish and hale 2,. Correct order is a) 'aleo*oicAO Meso*oicAO Coeno*oic b) rchaeo*oicAO Coeno*oic AO'aleo*oic c) Coeno*oic AO'aleo*oicAO rchaeo*oic d) Meso*oicAO rchaeo*oicAO Coeno*oic (earn more> MCQ on
1. b) 4og 15. c) Gin-go 16. c) Chemoheterotrophs 17. b) Cellulose 28. a) ails 21. b) 0maller populations 22. d) llen%s la# 23. b) atural 0election 2$. d) 4ogfish and hale 2,. a) 'aleo*oicAO Meso*oicAO Coeno*oic Nefer>Geological Time 0cale) Class 12 "iology A MCQ on
a) 'recambrian era b) Cambrian era c) 0ilurian era d) Meso*oic era 5. 9n primitive earth: energy #as formed from a) (ightning b) Bolcanic eruption c) FB light d) ll of these
6. 'rotenoid microspheres could produce an isolating membrane ifAAAA is added to the a;ueous solution> a) (ipids b) ucleic acid c) 'roteins d) 'olysaccharides 7. hich of the follo#ing gases provided the carbon s-eleton of living things during the origin of life! a) ater vapour b) Methane c) itrogen d) mmonia 18. ngiosperms N=lo#ering plants) originated in a) 4evonian period b) Eurassic period c) Cretaceous period d) Triassic (earn more> MCQ on
6. a) (ipids 7. b) Methane 18. c) Cretaceous period
Multiple Choice Questions on
a) $ billion years b) $.,$ billion years c) $.$, billion years d) $.$ billion years 6. 4uring #hich period in the age of earth did terrestrial life #as #ell established! a) 'leistocene period b) Eurassic period c) Carboniferous period d) cretaceous 7. =irst birds and li*ards appeared on 1Aa 2Ad 3Ac $Aa ,Aa Ab 5Ab
6Ac 7Aa 18Ac 11Aa 12Ad
