Genetics Most Important MCQs: Set#. 5

801 - The development of genetic markers and a mapping_______ are essential in genetic map

A. Units

B. Population

C. Species

D. Both a and b

Population

802 - The development of hardware and software for processing nucleotides and protein data is called

A. Genomics

B. Genetics

C. Genetic engineering

D. Bioinformatics

Bioinformatics

803 - The dilution factor______ will lyse the entire lawn of bacteria

A. 44837

B. 44839

C. 44841

D. 44843

44837

804 - The distance between A_B gene is 3 mu and distance between B_C is 2 mu,What will be the percentage of expected frequency of double crossover

A. 6

B. 0.06

C. 0.006

D. 0.0006

0.06

805 - The distance between genes is measured in

A. Map unit

B. Centimorgan

C. Centimeter

D. Both a and b

Both a and b

806 - The distance between two genes is measured in

A. centimorgan

B. mu

C. millimorgan

D. Both a and b

Both a and b

807 - The distinct form of SRGP2 labeled A-D appeared about _______million years ago

A. 1

B. 2

C. 3

D. 4

808 - The DNA in Chloroplast and Mitochondria have resemblance with DNA of

A. Fungi

B. Bactria

C. Algae

D. Plants

Bactria

809 - The DNA in E.coli chromosome is __________Âµm long

A. 1000

B. 1200

C. 1400

D. 1600

1200

810 - The DNA in each human chromosome ranges from_________

A. 10000-60000

B. 15000-50000

C. 19000-30000

D. 19000-73000

19000-73000

811 - The DNA of Bacteriophage contains more than________genes

A. 250

B. 150

C. 350

D. 450

150

812 - The DNA sequences such as cis-acting elements locate/at_______ region to be transcribed

A. Far away

B. Center

C. Near

D. the end

Near

813 - The double helix has a diameter of_________angstrom

A. 3.4

B. 34

C. 10

D. 20

814 - The doubling time during the log phase can be as short as

A. 5

B. 10

C. 15

D. 20

815 - The Down syndrome trisomic 21 can be contributed from

A. Male

B. Female

C. Both a and b

D. None of these

Both a and b

816 - The Dystrophin gene, a 2400 kb gene containing________exons

A. 59

B. 69

C. 79

D. 89

817 - The E.Coli haploid genome consists of __________percent rDNA

A. 0.2

B. 0.3

C. 0.7

D. 0.9

0.7

818 - The earliest synthesized RNA runs through a groove in the enzyme called as

A. Core

B. Pore

C. Lid

D. Top

Lid

819 - The energy used in initiation of translation

A. ATP

B. GTP

C. TTP

D. CTP

GTP

820 - The enhancers and silencers along with promoters are found in________genes

A. Bacterial

B. Viral

C. Eukaryotic

D. All of these

Eukaryotic

821 - The enzyme responsible for deamination of adenosine to produce inosine during mRNA editing

A. ADAR

B. CEDAR

C. Ribozyme

D. Spliceosome

ADAR

822 - The enzyme responsible for the synthesis of H substance

A. Fucosyl transferase(FUT1)

B. Amino tranferase

C. Methyl transferase

D. None of these

Fucosyl transferase(FUT1)

823 - The enzyme reverse transcriptase is resonsible for synthesis of ________________

A. RNA to DNA

B. DNA to RNA

C. DNA to protein

D. Protein to DNA

RNA to DNA

824 - The enzyme_________synthesizes artificial RNA templates

A. RNA polymerase

B. RNA transcriptase

C. DNA Polymerase

D. Polynucleotide phosphorylase

Polynucleotide phosphorylase

825 - The equatorial plane is the _________region of the dividing cells

A. Surface

B. Middle

C. Corner

D. None of these

Middle

826 - The exchange of segments of non sister chromatids during meiosis

A. Crossing over

B. Tetrad

C. Chiasmata

D. Synapsis

Crossing over

827 - The exon shuffling may be the cause of___________genes

A. Mutation

B. Migration

C. Evolution

D. All of these

Evolution

828 - The exon shuffling may occur due to

A. Transposans

B. Jumping genes

C. Smart genes

D. Both a and b

Both a and b

829 - The exon shuffling may occur due to

A. Transposans

B. Jumping genes

C. Abnormal cross over

D. All of these

All of these

830 - The exon shuffling, the model for the evolution of genes was presented by

A. Beadle and Tatum

B. Walter Gilbert

C. Robert Holley

D. Linus Pauling

Walter Gilbert

831 - The expected frequency of double crossover gametes often remains___________than that of single crossover

A. Lower

B. Higher

C. Equal

D. All of these

Lower

832 - The expression of genes on one homology, but not the other homology is called

A. Inhibiting

B. Imprinting

C. Inactivation

D. All of these

Imprinting

833 - The expression of Sex limited and esx inluenced traits are under the control of

A. Enzymes

B. Hormones

C. Environment

D. Diet

Hormones

834 - The ezymology of DNA replication was first reprted by

A. Meselson and Stahl

B. Watson and Crick

C. John Cairns

D. Kornberg

Kornberg

835 - The F factor plasmids contain genes for

A. Antibiotics resistance

B. Sex pilus

C. Toxicity for other bacteria

D. Growth

Sex pilus

836 - The factor/factors that stabilizes/stabilize the DNA double helix

A. Hydrogen bond

B. Arrangement of sugars

C. Arrangement of bases

D. All of these

All of these

837 - The factor/factors that stabilizes/stabilize the DNA double helix

A. Hydrophilic forces

B. Hydrophobic forces

C. Hydrogen bond

D. All of these

All of these

838 - The failure of sex chromosomes to segregate during meiosis

A. Nonseparation

B. Nondisjunction

C. Nonsegregation

D. All of these

Nondisjunction

839 - The fibroin, the protein made by the silk moth, depends extensively on

A. Î± helix

B. Primary

C. Î² pleated

D. None of these

Î² pleated

840 - The first amino acid to be fixed in protein synthesis

A. Valine

B. Methionine

C. Glycine

D. Glutamic acid

Methionine

841 - The first chromosome-banding technique was devised by

A. Vinograd

B. Chargaff

C. Mary-Lou Pardue

D. Flemming

Mary-Lou Pardue

842 - The first cytoplasmic mutation streptomycin was reprted in __________

A. Bacteria

B. Yeast

C. Chlamydomonas

D. Algae

Chlamydomonas

843 - The first cytoplasmic mutation streptomycin was reprted in chlamydomonas by

A. Sturtevant

B. Carl Correns

C. Rath Sager

D. Morgan

Rath Sager

844 - The first direct evidence that one gene one protein was confirmed from study of____________

A. Alkaptonuria

B. Sickle cell anemia

C. Phenyketonuria

D. Tay-sachs

Sickle cell anemia

845 - The first experimental evidence that genes are responsible for the synthesis of enzymes was proved by

A. George Beadle

B. Alexander Rich

C. Robert Holley

D. Garrod

George Beadle

846 - The first exposed DNA during replication process is called

A. ssDNA

B. ccDNA

C. sdDNA

D. cdDNA

ssDNA

847 - The first genetic map was constructed by

A. Mendel

B. Sturtevant

C. Wattson

D. Sutton

Sturtevant

848 - The first layer formed between two daughter cells in plants is

A. Primary wall

B. Secondary wall

C. middle lamella

D. All of these

middle lamella

849 - The flower and fruit size increases in

A. Aneupoloids

B. Monoploids

C. Diploids

D. Autopolyploids

Autopolyploids

850 - The folding of proteins may take place with the help of

A. Carboxyl group

B. Chaperones

C. Amino group

D. Liposomes

Chaperones

851 - The formula for coefficient of coincidence is

A. Observed DCO-Expected DCO

B. Observed DCO+Expected DCO

C. Observed DCOxExpected DCO

D. Observed DCO/Expected DCO

Observed DCO/Expected DCO

852 - The formula for Interference is

A. 1+C( coefficient of coincidence)

B. 1-C( coefficient of coincidence)

C. 2+C( coefficient of coincidence)

D. 2+C( coefficient of coincidence)

1-C( coefficient of coincidence)

853 - The fragile x syndrome(FXS) can cause ________retardation

A. Physical

B. Sexual

C. Mental

D. All of these

Mental

854 - The fragile x syndrome(FXS) more common in

A. Male

B. Female

C. Metamale

D. Metafemale

Male

855 - The framshift mutation becomes a stop codon in

A. Duchenne muscular dystrophy

B. Sickle cell anemia

C. Haemophilia

D. All of these

All of these

856 - The frequency of __________between any two loci on a single chromosome is proportional to the distance between them

A. Crossing over

B. Linkage

C. Penetrance

D. Expressivity

Crossing over

857 - The frequency of crossover between A-C 30%, B-C 45%, B-D 40% and A-D is 25%, What wii be the genes sequence

A. ABCD

B. BDAC

C. BADC

D. CADB

BADC

858 - The fruit fly haploid genome consists of __________percent rDNA

A. 0.2

B. 0.3

C. 0.7

D. 0.9

0.3

859 - The gaps between Okazaki fragments are sealed with the help of

A. DNA polymeraseI

B. RNA polymerase

C. DNA ligase

D. Gyrase

DNA ligase

860 - The gaps left at the 5 ends of the newly synthesized DNA are filled by

A. DNA polymeraseI

B. DNA helicase

C. Telomerase

D. DNA gyrase

Telomerase

861 - The gene autosomal gene transformer(tra) responsible for sex detrmunation in fruit fly was discovered by

A. Bridges

B. Patricia Jacobs

C. Edmund B.Wilson

D. A.H. Sturtevant

A.H. Sturtevant

862 - The gene for ADA immune deficiency is located on________chromosome

A. 1

B. 2

C. 22

D. 20

863 - The gene for Alzheimer disease is found on_________chromosome

A. X

B. y

C. Chromosome no.14

D. Chromosome no.17

Chromosome no.14

864 - The gene for azoospermia is located on________chromosome

A. x

B. y

C. 1

D. 2

865 - The gene for Breast cancer is found on

A. X

B. y

C. Chromosome no.1

D. Chromosome no.17

Chromosome no.17

866 - The gene for cystic fibrosis is located on________chromosome

A. 1

B. 5

C. 7

D. 9

867 - The gene for familial hypercholesterolemia is located on________chromosome

A. 19

B. 20

C. 21

D. 22

868 - The gene for Melanoma disease is located on________chromosome

A. 7

B. 8

C. 9

D. 10

869 - The gene for muscular dystrophy is located on________chromosome

A. x

B. y

C. 2

D. 3

870 - The gene for Phenylketonuria(PKU) disease is located on________chromosome

A. 10

B. 11

C. 12

D. 13

871 - The gene for polycystic kidney disease is located on________chromosome

A. 12

B. 13

C. 14

D. 16

872 - The gene for Retinoblastoma disease is located on________chromosome

A. 13

B. 14

C. 15

D. 16

873 - The gene for Sickle-cell Anemia is located on________chromosome

A. X

B. y

C. Chromosome no.11

D. Chromosome no.2

Chromosome no.11

874 - The gene for Tay-sachs disease is located on________chromosome

A. 14

B. 15

C. 16

D. 17

875 - The gene/genes coding for ___________a signaling protein of the immune system has/have no introns

A. Histones

B. Inertferon

C. Albumin

D. Both a and b

Both a and b

876 - The gene/genes in which the three nucleotides is repeated (trinucleotide repeats) many time

A. Fragile x syndrome(FXS)

B. Huntington

C. Myotonic dystrophy

D. All of these

All of these

877 - The genes for the A and B antigens locate on chromosome

A. 6

B. 7

C. 8

D. 9

878 - The genes IA and IB are example of

A. Codominance

B. Overdominance

C. Incomplete

D. None of these

Codominance

879 - The genes that are not transcribed due to insertions and deletions throughout their structure

A. Smart genes

B. Pseudogenes

C. Jumping genes

D. Deteriorate genes

Pseudogenes

880 - The genes that code for rRNA are located in an area of chromosome known as

A. NOR(Nuclear organizer region)

B. PAR

C. Centromere

D. APC

NOR(Nuclear organizer region)

881 - The genetic code containing triplet base was proposed by

A. Brenner

B. Francois Jacob

C. Nirenberg

D. Chargaff

Brenner

882 - The genetic code was deciphered by

A. Brenner

B. Francois Jacob

C. Nirenberg

D. Chargaff

Nirenberg

883 - The genetic consequences of reciprocal translocation are similar to

A. Deletion

B. Deficiency

C. Inversion

D. Duplication

Inversion

884 - The genetic constitution of cri du chat is

A. 46,5p-

B. 46,5q-

C. 46,6p-

D. 46,6q-

46,5p-

885 - The globular structure of proteins is characteristic of

A. Primary structure

B. Secondary structure

C. Tertiary structure

D. None of these

Tertiary structure

886 - The glutamate receptor channels(GluR) mRNA editing occurs in mammalian_______tissues

A. Heart

B. Brain

C. Kidney

D. Lung

Brain

887 - The gonads development in mammals is under the control of

A. Double sex (dsx)

B. tra

C. Xic

D. Both a and b

Double sex (dsx)

888 - The gray body color which is wild in nature is represented by

A. e

B. e+

C. G

D. g

889 - The group of enzymes that cut one or both of the strands and wind or unwind the helix before resealing the ends

A. Topoisomerases

B. Helicases

C. DNA polymerases

D. Primases

Topoisomerases

890 - The gut cells (16n) of Mosquito larvae undergo reduction divisions, giving rise to smaller_________cells

A. Monoploid

B. Diploid

C. Triploid

D. Hexaploid

Diploid

891 - The gut cells of Mosquito larvae may attain a

A. 4n

B. 8n

C. 16n

D. 32n

16n

892 - The H substance contains three sugar molecule, Galactose, N-acetyllgalactosamine and

A. Glucose

B. Ribose

C. Fucose

D. Fructose

Fucose

893 - The half life of mRNA of bacteria is________minutes

A. 5

B. 10

C. 15

D. 20

894 - The haploid genome of human contains more than ________bilion base pairs of DNA

A. 3

B. 4

C. 5

D. 6

895 - The haploid number (n) is equal to _________the diploid number

A. One-half

B. One-third

C. Two-third

D. One- fourth

One-half

896 - The haploid number of chromosomes for fruit fly(Drosophila melanogaster)

A. 3

B. 4

C. 8

D. 9

897 - The haploid number of chromosomes for champanzee

A. 18

B. 20

C. 22

D. 24

898 - The haploid number of chromosomes for corn(Zea mays)

A. 10

B. 11

C. 12

D. 13

899 - The haploid number of chromosomes for cotton(Gossypium hirsutum)

A. 22

B. 24

C. 26

D. 28

900 - The haploid number of chromosomes for dog(Canis familiaris)

A. 37

B. 38

C. 39

D. 40

901 - The haploid number of chromosomes for garden pea(Pisum sativum)

A. 9

B. 8

C. 7

D. 6

902 - The haploid number of chromosomes for House mouse(Mus musculus)

A. 17

B. 18

C. 19

D. 20

903 - The haploid number of chromosomes for human(Homo sapiens)

A. 22

B. 23

C. 24

D. 25

904 - The haploid number of chromosomes for pink bread mold(Neurospora crassa)

A. 7

B. 8

C. 9

D. 10

905 - The haploid number of chromosomes for round worm(Caenorhabditis elegans)

A. 3

B. 4

C. 5

D. 6

906 - The haploid number of chromosomes for wheat(Triticum aestivum)

A. 19

B. 20

C. 21

D. 22

907 - The haploid number of chromosomes for yeast(saccharomyces cerevisiae)

A. 15

B. 16

C. 17

D. 18

908 - The haploid number of chromosomes for zebrafish(Danio rerio)

A. 15

B. 20

C. 25

D. 30

909 - The Head of Bacteriophage is

A. Dodecahedron

B. Icosahedron

C. Octahedron

D. None of these

Icosahedron

910 - The helix structure of DNA was confirmed by

A. Watson

B. Pauling

C. Astburry

D. Franklin

Franklin

911 - The hemophilia in human is _____________trait

A. Diminant

B. Recessive

C. Holandric

D. None of these

Recessive

912 - The Hepatitis C disease in human is ____________trait

A. Diminant

B. Recessive

C. Holandric

D. None of these

None of these

913 - The hereditary deafness is example of

A. Gene interaction

B. Epistasis

C. Multiple allele

D. Both a and b

Both a and b

914 - The heritable disorder that exhibit a progressively earlier age of onset is called genetic___________

A. Drift

B. Interaction

C. Anticipation

D. background

Anticipation

915 - The heteroduplex region of DNA is found after

A. Conjugation

B. Transformation

C. Mutation

D. None of these

Transformation

916 - The highly repetitive ______________DNA is localized in the centromere regions of mice

A. Secondary constriction

B. Satellite

C. Tandem repetitive

D. All of these

Satellite

917 - The human adult hemoglobin contains two identical Î± chain of_______amino acids

A. 141

B. 151

C. 161

D. 171

141

918 - The human adult hemoglobin contains two identical Î² chain of_______amino acids

A. 136

B. 146

C. 156

D. 166

146

919 - The human genome contains genes that encode at least_______different DNA polymerases

A. 10

B. 14

C. 20

D. 24

920 - The humans have at least _____________copy/copies of SRGAP2

A. 1

B. 2

C. 3

D. 4

921 - The Huntington disease in human is _____________trait

A. Diminant

B. Recessive

C. Holandric

D. All of these

Diminant

922 - The Huntington disease is due to ___________autosomal allele

A. Reccessive lethal allele

B. Dominant lethal allele

C. Mutant allele

D. All of these

Dominant lethal allele

923 - The Huntington disease trigers in the age of

A. 20

B. 30

C. 40

D. 50

924 - The hypercholesterolemia in human is _____________trait

A. Diminant

B. Recessive

C. Holandric

D. All of these

Diminant

925 - The hypothetical portion of called DSCR is found in

A. Down syndrome

B. Turner syndrome

C. Klinefelter syndrome

D. Jacobs syndrome

Down syndrome

926 - The Î± helix structure and Î² pleated structure are stabilized by

A. Covalend bond

B. Peptide bond

C. Ionic bond

D. Hydrogen bond

Hydrogen bond

927 - The Î± helix structure of protein is characteristic of

A. Primary structure

B. Secondary structure

C. Tertiary structure

D. Quarternary structure

Secondary structure

928 - The idea of spontanous generation was disproved by

A. Louis Pasteur

B. Robert Koch

C. Vircho

D. Aristotle

Louis Pasteur

929 - The identification of introns in eukaryotic genes involves a direct comparison of nucleotide sequences of DNA with those of _______

A. mRNA

B. rRNA

C. tRNA

D. hnRNA

mRNA

930 - The incidence of cri du chat woeldwide is 1 in _________live births

A. 10000-15000

B. 15000-25000

C. 25000-50000

D. 50000-100000

25000-50000

931 - The individuals whose phenotype first brought attention to the family is called

A. Albinism

B. Mutant

C. Proband

D. None of these

Proband

932 - The infants with cri du chat suffer from gastrointestinal malfunctioning, cardiac complications and abnormal development of

A. Kidneys

B. Liver

C. Glottis and larynx

D. Spleen

Glottis and larynx

933 - The information encoded in mRNA is

A. Genetic code

B. Anticodon

C. Codon

D. Both A and C

Codon

934 - The inhibition of further crossover events by a crossover event in a nearby region of the chromosome is called

A. Interference

B. Dominance

C. Coincidence

D. None of these

Interference

935 - The initial amino acid in all polypeptide chains is __________

A. Valine

B. Methionine

C. Serine

D. Tyrosine

Methionine

936 - The initial amino acid methionine is formylated in_________

A. Fungi

B. Bacteria

C. Plants

D. Animals

Bacteria

937 - The initial amino acid methionine is unformylated in_________

A. Fungi

B. Animals

C. Plants

D. All of these

All of these

938 - The initial rRNA transcript in bacteria is

A. 18S

B. 23S

C. 28S

D. 30S

30S

939 - The insertion of Pyrrolysine into polypeptides require/requires_________codon/codons which normally funtion as stop codon

A. UAA

B. UGA

C. UAG

D. Both a and b

UAG

940 - The insertion of Selenocysteine into polypeptides require/requires_________codon/codons which normally funtion as stop codon

A. UAA

B. UGA

C. UAG

D. Both a and b

UGA

941 - The integrated bacterial DNA with viral DNA

A. Progeny

B. Prophage

C. Bacteriophage

D. T-even phage

Prophage

942 - The interval between division of cell

A. Interphase

B. S phase

C. Anaphase

D. Telophase

Interphase

943 - The intial results were discouraging because of ___________haploid number of human chromosomes

A. Lower

B. High

C. Medium

D. None of these

High

944 - The intron which is itself the source of the enzymatic activity necessary for splicing is called

A. Ribozyme

B. Splicezyme

C. Intronozyme

D. Spliceosome

Ribozyme

945 - The introns in eukaryotes help in

A. Alternative splicing

B. Exons shuffling

C. Reulation of transcription

D. All of these

All of these

946 - The kinetochore is located on

A. Spindle fiber

B. Chromosome

C. Centromere

D. Both b and c

Both b and c

947 - The large subunit of Rubisco is encoded by

A. Mitochondrial DNA

B. Chloroplast DNA

C. Nuclear DNA

D. Both a and b

Chloroplast DNA

948 - The length of major groove is __________angstrom

A. 34

B. 10

C. 12

D. 22

949 - The length of minor groove is __________angstrom

A. 34

B. 10

C. 12

D. 22

950 - The length of target peptides, which function like postal codes for the cells

A. 3-7 amino acids

B. 7-12 amino acids

C. 12-16 amino acids

D. 16-20 amino acids

3-7 amino acids

951 - The Lesh-Nyhan syndrome inherited as x-linked recessive disease is characterized by abnormal ____________metabolism

A. Nucleic acid

B. Lipid

C. Protein

D. Sugar

Nucleic acid

952 - The location of a gene on chromosome

A. Place

B. Position

C. Locus

D. All of these

Locus

953 - The location of RNA polymerase I (RNAP I) in eukaryotes

A. Nucleolus

B. Nucleoplasm

C. Cytoplasm

D. Both a and b

Nucleolus

954 - The location of RNA polymerase II (RNAP II) in eukaryotes

A. Nucleolus

B. Nucleoplasm

C. Cytoplasm

D. Both a and b

Nucleoplasm

955 - The location of RNA polymerase III (RNAP III) in eukaryotes

A. Nucleolus

B. Nucleoplasm

C. Cytoplasm

D. Both a and b

Nucleoplasm

956 - The long interspersed elements(LINEs) are less than 6kb base pairs long and may be present____________times in the human genome

A. 850000

B. 1500000

C. 2500000

D. 3500000

850000

957 - The longer arm of chromosome shown below the centromere is known as

A. P arm

B. q arm

C. Right arm

D. left arm

q arm

958 - The lysine replaces glutamic acid in

A. HbC

B. HbS

C. HbA

D. All of these

HbC

959 - The major components of chromosomes are DNA and________

A. Carbohydrate

B. Lipids

C. RNA

D. Prptein

Prptein

960 - The manifestation of mutant phenotype is the result of internal_____________environment of an organism changing during development and age

A. Anatomical

B. Physiological

C. Genetical

D. All of these

Physiological

961 - The manipulation of foreign genes into host genome is called

A. Biotechnology

B. Recombinant DNA technology

C. Genetic engineering

D. All of these

All of these

962 - The Marfan syndrome in human is example of

A. Pleiotropy

B. Epistasis

C. Multiple allele

D. Both a and b

Pleiotropy

963 - The master switch in sex determination in fruit fly is

A. Sex lethal (Sxl)

B. tra

C. Xic

D. None of these

Sex lethal (Sxl)

964 - The mating partner/partners in chlamydomonas

A. mt+

B. mt-

C. Sex+

D. Both a and b

Both a and b

965 - The mean onset of Huntington disease is__________years

A. 20

B. 30

C. 38

D. 40

966 - The medulla of gonadal ridges gives rise____________during human development

A. Testis

B. Ovary

C. Penis

D. Vagina

Testis

967 - The membrane bounded cell organelles are present in

A. Prokaryotic

B. Eukaryotic

C. Plants

D. Both b and c

Both b and c

968 - The Meselson and Stahl used ____________in the growth medium to grow bacteria

A. Ammonium chloride

B. Cesium chloride

C. Sodium chloride

D. None of these

Ammonium chloride

969 - The Meselson and Stahl used isotopes of ____________in the growth medium to grow bacteria

A. S

B. N

C. C

D. P

970 - The Meselson and Stahl used salt of ____________in the test tube for sedimentation equilibrium centrifugation

A. Ammonium chloride

B. Cesium chloride

C. Sodium chloride

D. Both a and b

Cesium chloride

971 - The methylation of histones have ____________imact on gene activity

A. Positive

B. Negative

C. Neutral

D. Both a and b

Both a and b

972 - The mice coat color gene reside on

A. Autosome 1

B. X

C. Y

D. None of these

973 - The microRNA(miRNA) is involved in

A. Mutation

B. Regulation of gene expression

C. Translation

D. None of these

Regulation of gene expression

974 - The migration of centrioles to opposite ends of cell takes place in

A. prophase

B. Metaphase

C. Anaphase

D. Telophase

prophase

975 - The misfolded proteins can cause

A. Scrapie in sheep

B. Arthritis in human

C. Jaundice in human

D. All of these

Scrapie in sheep

976 - The misfolded proteins can cause

A. Scrapie in sheep

B. Made cow disease

C. Creutzfeldt

D. All of these

All of these

977 - The mitochondria and chloroplast arose about 2 billion years ago from

A. Protobacteria

B. Eubacteria

C. Cyanobacteria

D. All of these

Protobacteria

978 - The MN blood group in human is example of

A. Codominance

B. Overdominance

C. Incomplete

D. None of these

Codominance

979 - The MN blood group phenomnon was discovered by

A. Mendel

B. Morgan

C. Hooke

D. Landsteiner

Landsteiner

980 - The MN blood group system is under the controle of a locus found on chromosome

A. 2

B. 4

C. 6

D. 8