Home⇒ Medical Science⇒ Microbiology⇒ Dna sequencing mutation and repair
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ Genetic variations are stable [other wrong options] [Discuss in forum] |
| Q2 ⇒ A nonsense mutation may result into a premature termination of the synthesis of a polypeptide [other wrong options] [Discuss in forum] |
| Q3 ⇒ The promoter on an expression vector used to overproduce proteins in bacteria is a bacterial promoter [other wrong options] [Discuss in forum] |
| Q4 ⇒ The whole-genome shotgun sequencing approach depends primarily on rapidly sequencing thousands of small randomly cloned fragments [other wrong options] [Discuss in forum] |
| Q5 ⇒ The DNA sequences of rRNA genes can be used to obtain a tentative identification of a new microorganism [other wrong options] [Discuss in forum] |
| Q6 ⇒ Which of the following bacterial genome was sequenced first? H. influenzae [other wrong options] [Discuss in forum] |
| Q7 ⇒ Thymine dimers are directly repaired with the help of visible light by process known as photoreactivation [other wrong options] [Discuss in forum] |
| Q8 ⇒ Which of the following mutations arise without exposure to external agents? Spontaneous mutations [other wrong options] [Discuss in forum] |
| Q9 ⇒ Which of these mechanisms for thymine dimers repair lead to mutations? SOS repair [other wrong options] [Discuss in forum] |
| Q10 ⇒ Which of the following(s) is/are steps in excision repair mechanisms? All of these [other wrong options] [Discuss in forum] |
| Q11 ⇒ A mutagen is defined as a chemical or physical agent that induces mutations [other wrong options] [Discuss in forum] |
| Q12 ⇒ The mutation which will not affect the length of a protein is, missense mutation [other wrong options] [Discuss in forum] |
| Q13 ⇒ Which of the following mutation affects only a single nucleotide? Point mutation [other wrong options] [Discuss in forum] |
| Q14 ⇒ Differentiation of four different bases in automated sequencing systems is that each base has distinctive fluorescent tag [other wrong options] [Discuss in forum] |
| Q15 ⇒ Changes in which of the following characterizes mutations? Both (a) and (b) [other wrong options] [Discuss in forum] |
| Q16 ⇒ When mutations involve vital functions so that the mutants are nonviable, it is a lethal mutation [other wrong options] [Discuss in forum] |
| Q17 ⇒ Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one? Old strands are methylated while new strands are not [other wrong options] [Discuss in forum] |
| Q18 ⇒ Frame shift mutation may occur as a result of none of the above [other wrong options] [Discuss in forum] |
| Q19 ⇒ What was the first eukaryotic chromosome to be sequenced? Yeast chromosome III [other wrong options] [Discuss in forum] |
| Q20 ⇒ A nonsense mutation introduced into the DNA sequence of a gene may shorten the length of the protein encoded by the gene [other wrong options] [Discuss in forum] |