UPSC Biology Genetics Question Bank

done Genetics and Biotechnology Total Questions - 40

• question_answer1)
  Which one of the following is a hereditary disease? [NDA]
  A)
    Cataract    done clear
  B)
          Haemophilia done clear
  C)
  Pellagra            done clear
  D)
           Osteoporosis done clear
  View Solution play_arrow

• question_answer2)
        Which one of the following statements is correct? Cretinism is a human disorder which is due to the under secretion of: [NDA] 
  A)
  Adrenalin hormone            done clear
  B)
  Cortisone hormone done clear
  C)
  Glucagon hormone            done clear
  D)
  Thyroxin hormone done clear
  View Solution play_arrow

• question_answer3)
        Which one of the following is not a genetic disorder? [NDA]
  A)
  Colour blindness  done clear
  B)
           Down?s syndrome done clear
  C)
  Haemophilia           done clear
  D)
  Xerophthalmia done clear
  View Solution play_arrow

• question_answer4)
        Which one of the following genetic diseases is sex-linked? [IAS Prelim]
  A)
  Royal haemophilia   done clear
  B)
  Tay-Sachs disease done clear
  C)
  Cystic fibrosis       done clear
  D)
           Hypertension done clear
  View Solution play_arrow

• question_answer5)
        A mother of blood group O has a group O child. What could be the blood group of father of the child? [CDS]
  A)
   Only O             done clear
  B)
           A or B or O done clear
  C)
  A or B              done clear
  D)
           Only AB done clear
  View Solution play_arrow

• question_answer6)
        Between which one of the following sets of blood groups, is the blood transfusion possible? [CDS]
  A)
  A and O            done clear
  B)
                     B and A done clear
  C)
  A and AB    done clear
  D)
           AB and 0 done clear
  View Solution play_arrow

• question_answer7)
  Which one among the following is not correct about Down's syndrome? [CDS]
  A)
  It is a genetic disorder done clear
  B)
  Effected individual has early ageing done clear
  C)
  Effected person has mental retardation done clear
  D)
  Effected person has furrowed tongue with open mouth done clear
  View Solution play_arrow

• question_answer8)
        Haemophilia is a genetic disorder which lead to [IAS]
  A)
  decrease in haemoglobin level done clear
  B)
  rheumatic heart disease done clear
  C)
  decrease in WBC done clear
  D)
  non-clotting of blood done clear
  View Solution play_arrow

• question_answer9)
        Which one of the following techniques can be used to establish the paternity of a child I? [IAS]
  A)
  Protein analysis done clear
  B)
  Quantitative analysis of DNA done clear
  C)
  Chromosome counting done clear
  D)
  DNA fingerprinting done clear
  View Solution play_arrow

• question_answer10)
        Number of chromosome in a normal human body cell is [SSC]
  A)
  43                         done clear
  B)
                     44 done clear
  C)
  45                         done clear
  D)
           46               done clear
  View Solution play_arrow

• question_answer11)
        Which one of the following genetic disease is sex-linked? [IAS]
  A)
  Royal haemophilia            done clear
  B)
  Tay-Sachs disease done clear
  C)
   Cystic fibrosis      done clear
  D)
          Hypertension done clear
  View Solution play_arrow

• question_answer12)
       

  Assertion [A]: In human beings, the female play a major role in determining the sex of the offspring.

  Reason (R): Women have two X-chromosomes. [IAS]

                                                                                                                                                                     
  A)
  Both A and R are true and R is the correct explanation of A done clear
  B)
  Both A and R are true, but R is not a correct explanation of A done clear
  C)
  A is true, but R is false done clear
  D)
  A is false, but R is true done clear
  View Solution play_arrow

• question_answer13)
        Variation can be brought about by
  A)
  sexual reproduction done clear
  B)
  copying of DNA done clear
  C)
  adjusting with environment done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer14)
        The sex of the child in humans primarily depends on
  A)
  X chromosome of female part done clear
  B)
  X and Y chromosome of male part done clear
  C)
  Both [a] & [b] done clear
  D)
  None of the two done clear
  View Solution play_arrow

• question_answer15)
  State 'T' for True option and F for False option and choose the correct option at the end

  A. We have a single pair of sex chromosomes in all cells.

  B. Autosomes are 22 pairs of chromosomes.

  C. The human karyotype represents the pair of chromosome in a cell

  D.  There are 46 Chromosomes as autosomes.

  A)
  TFTF            done clear
  B)
  TTTF done clear
  C)
  TFFF            done clear
  D)
  TTFF done clear
  View Solution play_arrow

• question_answer16)
        In human beings, a recessive gene can express it in homozygous condition as in
  A)
  Autosome done clear
  B)
  X-chromosome of male done clear
  C)
  X-Chromosome of females done clear
  D)
  An autosome or X-Chromosome done clear
  View Solution play_arrow

• question_answer17)
        Genetics is the study of-
  A)
  Inheritance done clear
  B)
                     Cell structure done clear
  C)
  Only plants       done clear
  D)
                     Only animals done clear
  View Solution play_arrow

• question_answer18)
        Mendel Laws of Heredity were rediscovered by
  A)
  Charles Darwin done clear
  B)
  Lamark done clear
  C)
  Devries correns and Tschermark done clear
  D)
  Morgan done clear
  View Solution play_arrow

• question_answer19)
        Hereditary characteristics are passed on from parents to off spring chiefly through
  A)
  gametes      done clear
  B)
           enzymes done clear
  C)
  genes           done clear
  D)
           centrosomes done clear
  View Solution play_arrow

• question_answer20)
        Gene is made of which chemical
  A)
  D.N.A.        done clear
  B)
           R.N.A. done clear
  C)
  protein                   done clear
  D)
           enzyme done clear
  View Solution play_arrow

• question_answer21)
        Consider the following statements:

  A. Sex is determined by different factors in various species.

  B.   Exchange of genetic material takes place in asexual reproduction.

  Which of these statement(s) is/are correct?
  A)
  A only         done clear
  B)
           B only done clear
  C)
  Both A and B     done clear
  D)
           Neither A nor B done clear
  View Solution play_arrow

• question_answer22)
        From heredity point of view which marriage is not suitable
  A)
  Man Rh (-) and Woman Rh (+) done clear
  B)
  Both Rh (+) done clear
  C)
  Both Rh (-) done clear
  D)
  Man Rh (+) and Woman Rh (-) done clear
  View Solution play_arrow

• question_answer23)
        In animals sex determination is due to
  A)
  X-chromosome  done clear
  B)
           Y-chromosome done clear
  C)
  A-chromosome  done clear
  D)
           B-chromosome done clear
  View Solution play_arrow

• question_answer24)
        A complete set of chromosomes inherited as a unit from one parent, is known as
  A)
  Karyotype              done clear
  B)
           Gene pool done clear
  C)
  Genome      done clear
  D)
           Genotype done clear
  View Solution play_arrow

• question_answer25)
        The ratio of phenotypes in \[{{F}_{2}}\] of a monohybrid cross is
  A)
  3 : 1            done clear
  B)
           1 : 2 : 1 done clear
  C)
  9 : 3 : 3 : 1       done clear
  D)
                     2 : 1 done clear
  View Solution play_arrow

• question_answer26)
        Sickle cell anaemia is
  A)
  caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin. done clear
  B)
  caused by a change in a single base pair of DNA. done clear
  C)
  characterized by elongated sickle like RBCs with a nucleus. done clear
  D)
  an autosomal linked dominant trait. done clear
  View Solution play_arrow

• question_answer27)
        Mutations can be induced with
  A)
  infrared radiations             done clear
  B)
  I AA done clear
  C)
  ethylene             done clear
  D)
           gamma radiations done clear
  View Solution play_arrow

• question_answer28)
       

  	Column-I		Column-II
  A.	ABO blood groups	I.	Dihybrid cross
  B.	Law of segregation cross	II.	Monohybrid
  C.	Law of Independent assortment	III.	Base pairs substitution
  D.	Gene mutation	IV.	Multiple allelism

   
  A)
  A-II;  B-I;  C-IV;  D-III done clear
  B)
  A-IV;  B-I;  C-II;  D-III done clear
  C)
  A-IV;  B-II;  C-I;  D-III done clear
  D)
  A-II;  B-III;  C-IV;  D-I done clear
  View Solution play_arrow

• question_answer29)
       

  	Column-I		Column-II
  A.	Incomplete dominance	I.	Drosophila
  B.	Mendelian disorder	II.	Antirrhinum sp.
  C.	Transforming principle	III.	Griffith
  D.	Dihybrid cross	IV.	Haemophilia

   
  A)
  A-I;  B-IV;  C-III;  D-II done clear
  B)
  A-IV;  B-II;  C-III;  D-I done clear
  C)
  A-II;  B-III;  C-IV;  D-I done clear
  D)
  A-II;  B-IV;  C-III;  D-I done clear
  View Solution play_arrow

• question_answer30)
        First transgenic plant -
  A)
  Potato              done clear
  B)
           Tomato done clear
  C)
  Tobacco             done clear
  D)
           Maize done clear
  View Solution play_arrow

• question_answer31)
        The bacteria generally used for genetic engineering is
  A)
  Agrobacterium     done clear
  B)
           Bacillus done clear
  C)
  Pseudomonas      done clear
  D)
           Clostridium done clear
  View Solution play_arrow

• question_answer32)
        Bacillus thuringiensis (Bt) strains have been used for designing novel -
  A)
  Bio-metallurgical techniques done clear
  B)
  Bio-insecticidal plants done clear
  C)
  Bio-mineralization processes done clear
  D)
  Bio-fertilizers done clear
  View Solution play_arrow

• question_answer33)
        Which of the following is false for Bt transgenic plant -
  A)
  Disease resistance done clear
  B)
  Prepared by Bacillus thuringiensis done clear
  C)
  It is recombinant type done clear
  D)
  No such plant is known done clear
  View Solution play_arrow

• question_answer34)
        First cloned animal is -
  A)
  Dog                done clear
  B)
           Molly done clear
  C)
  Dolly sheep         done clear
  D)
           Polly sheep done clear
  View Solution play_arrow

• question_answer35)
        Genetically engineered human insulin is prepared by using-
  A)
  E. coli              done clear
  B)
           Rhizopus done clear
  C)
  Pseudomonas      done clear
  D)
          Yeast done clear
  View Solution play_arrow

• question_answer36)
        Golden rice is a transgenic crop of the future with the following improved trait -
  A)
  High lysine (essential amino acid) content done clear
  B)
  Insect resistance done clear
  C)
  High protein content done clear
  D)
  High vitamin-A content done clear
  View Solution play_arrow

• question_answer37)
        Plasmid has been used as vector because
  A)
  both its ends show replication. done clear
  B)
  it can move between prokaryotic and eukaryotic cells. done clear
  C)
  it is circular DNA which have capacity to join to eukaryotic DNA. done clear
  D)
  it has antibiotic resistance gene. done clear
  View Solution play_arrow

• question_answer38)
        Which of the following is known as specific molecular scissors?
  A)
  Ligase done clear
  B)
  Helicase done clear
  C)
  Restriction endonuclease done clear
  D)
  DNA polymerase done clear
  View Solution play_arrow

• question_answer39)
        The enzyme used for joining two DNA fragments is called
  A)
  ligase                done clear
  B)
                     restriction endonuclease done clear
  C)
  DNA polymerase done clear
  D)
      gyrase done clear
  View Solution play_arrow

• question_answer40)
        Which of the following statement is incorrect regarding PCR?
  A)
  In PCR, two primers are used. done clear
  B)
  Taq DNA polymerase is related for PCR. done clear
  C)
  Taq DNA polymerase is not thermostable. done clear
  D)
  Multiple copies of gene can be synthesized in PCR. done clear
  View Solution play_arrow