Question is ⇒ The DNA sequences of rRNA genes can be used to, Options are ⇒ (A) assess relatedness of eukaryotes but not prokaryotes, (B) obtain a tentative identification of a new microorganism, (C) predict the pulsed field gel pattern of a microorganism, (D) predict whether a bacteria will be gram-positive or gram-negative, (E) , Leave your comments or Download question paper.

Question is ⇒ The DNA sequences of rRNA genes can be used to, Options are ⇒ (A) assess relatedness of eukaryotes but not prokaryotes, (B) obtain a tentative identification of a new microorganism, (C) predict the pulsed field gel pattern of a microorganism, (D) predict whether a bacteria will be gram-positive or gram-negative, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The DNA sequences of rRNA genes can be used to
A.	assess relatedness of eukaryotes but not prokaryotes [Wrong Answer]
B.	obtain a tentative identification of a new microorganism [Correct Answer]
C.	predict the pulsed field gel pattern of a microorganism [Wrong Answer]
D.	predict whether a bacteria will be gram-positive or gram-negative [Wrong Answer]
View Answer 8 -3 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ Differentiation of four different bases in automated sequencing systems is that each base has
different radioactive tag
cytosine at start
unique antibody bound to it
distinctive fluorescent tag

⇒ Which of the following bacterial genome was sequenced first?
E. coli
S. pneumoniae
H. influenzae
S. thermophilus

⇒ The mutation which will not affect the length of a protein is,
nonsense mutation
missense mutation
frameshift mutation
all of these

⇒ The whole-genome shotgun sequencing approach depends primarily on
rapidly sequencing thousands of small randomly cloned fragments
methodical sequencing a few large cloned fragments of DNA
sequencing the bacterial chromosome while it is still intact
all of the above

⇒ Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one?
New strands do not contain cytosine bases
New strands are lower in molecular size
Old strands are methylated while new strands are not
New strands are methylated while old strands are not

⇒ Changes in which of the following characterizes mutations?
Phenotype
Genotype
Both (a) and (b)
None of these

⇒ Thymine dimers are directly repaired with the help of visible light by process known as
phosphorylation
excision repair
photosynthesis
photoreactivation

⇒ Which of the following mutation affects only a single nucleotide?
Aerial mutation
Site mutation
Point mutation
Regional mutation

⇒ A nonsense mutation introduced into the DNA sequence of a gene may
cause premature termination of the mRNA
shorten the length of the protein encoded by the gene
have no effect on the transcript or protein made
cause a shift in reading frame

⇒ A mutagen is defined as
an enzyme that repairs mutations
a chemical or physical agent that induces mutations
an inhibitor of gene modification
a molecule which stabilizes DNA thus prevents mutations from occurring

⇒ Which of these mechanisms for thymine dimers repair lead to mutations?
Excision repair
Photoreactivation
SOS repair
Never leads to mutation

⇒ When mutations involve vital functions so that the mutants are nonviable, it is a
nonsense mutation
lethal mutation
transversion
none of these

⇒ What was the first eukaryotic chromosome to be sequenced?
Yeast chromosome III
Yeast chromosome XI
Arabidopsis chromosome IV
None of these

⇒ Genetic variations are
temporary
influenced by the environment
stable
not heritable

⇒ Which of the following mutations arise without exposure to external agents?
Spontaneous mutations
Analogous mutations
Induced mutations
None of these

⇒ The DNA sequences of rRNA genes can be used to
assess relatedness of eukaryotes but not prokaryotes
obtain a tentative identification of a new microorganism
predict the pulsed field gel pattern of a microorganism
predict whether a bacteria will be gram-positive or gram-negative

⇒ A nonsense mutation may result into
an abnormal elongation of a polypeptide
a large deletion within the reading frame of a gene
a premature termination of the synthesis of a polypeptide
modification of mRNA

⇒ The promoter on an expression vector used to overproduce proteins in bacteria is
a bacterial promoter
expressed both in bacteria and mammalian cells
not a regulated promoter
the natural promoter of the gene being cloned

⇒ Frame shift mutation may occur as a result of
formation of a thymine-dimer
deamination of cytosine to uracil
conversion of guanine to xanthine
none of the above

⇒ Which of the following(s) is/are steps in excision repair mechanisms?
Excision
Incision
Ligation
All of these