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Home » General Knowledge » General Science » Aptitude Test - 13
1.Name the area of a bacterial cell which contains a bacterial chromosome?
A. DNA
B. Nucleus
C. Nucleoid
D. DNA
2.Which of the following is not the nucleotide associated protein?
A. HSP
B. HU
C. H-NS
D. HSP
3.Which nucleoid protein assisted in condensation of DNA?
A. SMC
B. IHF
C. HU
D. SMC
4.Name the group of bacteria which uses histone to condense DNA molecule?
A. Spirochetes
B. Archaebacteria
C. Mycoplasma
D. Spirochetes
5.Extrachromosomal DNA present in prokaryotes is called?
A. Cocci group of bacteria
B. Chainlike group of bacteria
C. Plasmid
D. Cocci group of bacteria
6.Name the plasmid which makes host cell resistance to the antibiotic?
A. Hfr
B. F-plasmid
C. Col plasmid
D. Hfr
7.Which of the following is NOT the property of plasmid?
A. Rolling circle replication
B. Narrow host range
C. Two closely related plasmids cannot coexist in the same cell
D. Rolling circle replication
8.Name the type of plasmid which has no identified function or phenotypic properties?
A. Cryptic plasmid
B. R-plasmid
C. High-frequency recombination
D. Cryptic plasmid
9.Which of the following plasmid found in eukaryotes?
A. Col plasmid
B. 2μ circle
C. F-plasmid
D. Col plasmid
10.Name the type of bacteria which uses Co2 as a sole source of carbon for growth?
A. Organotrophs
B. Heterotrophs
C. Autotrophs
D. Organotrophs
11.Name those bacteria which obtain energy from chemical compounds?
A. Chemotrophs
B. Phototrophs
C. Organotrophs
D. Chemotrophs
12.Name the type of bacteria which uses reduced inorganic substances as an electron source?
A. Autotrophs
B. Chemotrophs
C. Organotrophs
D. Autotrophs
13.Which of the following bacteria does not belong to photolithoautotrophy nutritional class?
A. Thiomargarita namibiensis
B. Purple sulfur bacteria
C. Blue-green bacteria
D. Thiomargarita namibiensis
14.Purple and green non-sulfur bacteria belongs to which of the following classes?
A. Photolithoautotrophy
B. Photoorganohetrotrophy
C. Chemolithoautotrophy
D. Photolithoautotrophy
15.Nitrifying bacteria belongs to the nutritional class of?
A. Chemoorganoautotrophy
B. Photolithoautrophy
C. Chemolithoautotrophy
D. Chemoorganoautotrophy
16.Which of the following species falls under the category of hydrogen-producing bacteria?
A. Alkaligenes eutrophus
B. Nitrobacter winogradskyi
C. Nitrosomonas europaea
D. Alkaligenes eutrophus
17.Which of these is NOT a selective media?
A. Blood agar
B. Eosin methylene blue agar
C. MacConkey agar
D. Blood agar
18.Name the protein which plays an important role in cell division?
A. Actin
B. FtsZ
C. HSP
D. Actin
19.What is the basic taxonomic unit?
A. RNA
B. Phylogenetic tree
C. Species
D. RNA
20.What is numerical taxonomy?
A. Determine evolutionary tree on the number of genus
B. Determine numbers of phylogenetic tree
C. Determine phylogenetic relationships
D. Determine evolutionary tree on the number of genus
21.Which of the following is not used to determine DNA relatedness in the phylogenetic system?
A. Thermal stability of related DNA
B. Genome size
C. GC content
D. Thermal stability of related DNA
22.The collective study of genotypic, chemotaxonomic, and phenotypic method is?
A. Polyphasic approach
B. Numerical taxonomy
C. Bacterial taxonomy
D. Polyphasic approach
23.What is the causative agent of Q-fever?
A. R. typhi
B. Coxiella burnetii
C. Plasmodium
D. R. typhi
24.Name the bacteria which are responsible for the odor of moist soil.
A. Mycoplasma
B. Borelia burgdorferi
C. Streptomyces
D. Mycoplasma
25.Name the causative agent of syphilis.
A. Mycobacteria
B. Streptococcus
C. Pseudomonas
D. Mycobacteria
26.Mark the INCORRECT statement about cyanobacteria.
A. Gram-negative bacteria
B. Photolithoautotrophic organism
C. They do not have a fully functional citric acid cycle
D. Gram-negative bacteria
27.Who is known as the Father of Genetics?
A. Erich Tschemark
B. Carl Correns
C. Gregor Johann Mendel
D. Erich Tschemark
28.Mendel discovered factors which remain its identity in a hybrid, these factors are?
A. Genes
B. Alleles
C. DNA
D. Genes
29.Which of the following specimen was chosen by Mendel for his experiment?
A. Drosophila
B. Fly
C. Rat
D. Drosophila
30.Mark the INCORRECT statement about Pisum sativum?
A. Long life cycle
B. Easy hybridization
C. Bisexual flower
D. Long life cycle
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