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Home » General Knowledge » General Science » Aptitude Test - 19
1.6. Which organism has segmental nephridia for excretion and osmoregulation?
A. a) Platyhelminthes
B. b) Aschelminthes
C. c) Annelida
D. a) Platyhelminthes
2.Which of the following cloning vector is used for insect and having a DNA genome?
A. Cosmid
B. P-element
C. SV40
D. Cosmid
3.The process by which bacterial cell uptake DNA is called?
A. Gene expression
B. Transformation
C. Transcription
D. Gene expression
4.Which of the following chemical is used in chemical transformation method?
A. Cu
B. FeSO4
C. SO2
D. Cu
5.8. Which of the following phylum has a water vascular system?
A. a) Plantae
B. b) Mollusca
C. c) Echinodermata
D. a) Plantae
6.Which of the following method creates pores in the membrane?
A. Gene gun
B. Chemical transformation
C. Electroporation
D. Gene gun
7.Which of the following particles is used in the gene gun method?
A. Iron particles
B. Aluminum particles
C. Silver particles
D. Iron particles
8.Which of the following shows the location of the inserted genes?
A. Palindromic sequences
B. Resistance gene
C. Restriction site
D. Palindromic sequences
9.Which of the following is NOT true for agrobacterium?
A. Horizontal gene transfer
B. Gram positive bacteria
C. Causes tumor in plants
D. Horizontal gene transfer
10.9. Name the phylum which is characterized by the presence of notochord.
A. a) Chordata
B. b) Hemichordata
C. c) Echinodermata
D. a) Chordata
11.Name the disease caused by Agrobacterium in plants?
A. Crown gall disease
B. Black knot
C. Downy Mildew
D. Crown gall disease
12.10. Name the first vertebrate which possessed amniotic egg?
A. a) Amphibia
B. b) Aves
C. c) Reptilia
D. a) Amphibia
13.11. Which of the following is known as scavengers in the marine ecosystem?
A. a) Lamprey
B. b) Hagfish
C. c) Scoliodon
D. a) Lamprey
14.The map of the chromosome which shows identifiable sites is called?
A. Gene expression
B. Genome sequencing
C. Chromosome walking
D. Gene expression
15.What is chromosome walking?
A. Hybridization technique
B. Sequencing technique
C. Genetic marker
D. Hybridization technique
16.What is the unit of a genetic map?
A. Centimeter
B. Nanometer
C. Angstrom
D. Centimeter
17.Which of the following statement is NOT true for genetic markers?
A. A gene or a DNA sequence
B. Associated with a particular trait
C. Anything can be used as a genetic marker
D. A gene or a DNA sequence
18.Which of the following is NOT a DNA marker?
A. RAPD
B. Hormone
C. RFLP
D. RAPD
19.What is the full form of RFLP?
A. Restriction Fragment Length Polymorphisms
B. Random Fragment Length Polymorphism
C. Restriction Find in Length of DNA Polymer
D. Restriction Fragment Length Polymorphisms
20.Which of the following technique is used for the amplification of DNA fragments?
A. AFLP
B. RFLP
C. RAPD
D. AFLP
21.Out of the following, which technique detect single nucleotide polymorphism?
A. RFLP
B. AFLP
C. SSLP
D. RFLP
22.Name the mapping technique used to determine the position of restriction sites in a DNA molecule?
A. Genetic map
B. Restriction mapping
C. Biochemical markers
D. Genetic map
23.What is the name of the hypervariable region of immunoglobin, which is responsible for its diversity?
A. CDR
B. Hinge region
C. Epitope
D. CDR
24.Who discovered the structure of immunoglobulin by treating it with betamercaptoethanol?
A. Nisonoff
B. Edelman
C. Porter
D. Nisonoff
25.Which of the following amino acid is found in the hinge region?
A. Alanine
B. Aspargine
C. Proline and cysteine
D. Alanine
26.Which immunoglobulin can pass through placenta?
A. IgD
B. IgE
C. IgM
D. IgD
27.Name the class of immunoglobulin which has a pentameric structure?
A. IgE
B. IgG
C. IgA
D. IgE
28.Which of these immunoglobulins is present in external secretion?
A. IgG
B. IgM
C. IgA
D. IgG
29.Name the class of immunoglobulin which takes part in hypersensitivity reaction?
A. IgG
B. IgE
C. IgA
D. IgG
30.Which of the following is responsible for B-cell activation?
A. Infection
B. Antibody
C. Antigen
D. Infection
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