Each daughter duplex has one parental strand and one new strand due to ..........

• A) Semi-conservative replication
• B) Dispersive replication
• C) Conservative replication
• D) Both conservative and dispersive replication

In case of _____ replication, the resulting DNA strands are linked.

• A) linear
• B) cationinc
• C) bubble
• D) circular

The transient excursion model of transcription says that there are transient cycles of forward and backward translocation of ____.

• A) RNA
• B) DNA polymerases
• C) DNA
• D) RNA polymerases

Transcription is chemically and enzymatically, very similar to

• A) RNA replication
• B) DNA replication
• C) Translation
• D) All of these

Why the DNA of E.coli is called single replicon?

• A) all of these are wrong
• B) single origin of replication
• C) small chromosome
• D) absence of nucleus

Four deoxynucleoside triphospahtes are

• A) dSDP, dCTP, dATP & dTTP
• B) None of these
• C) dGTP, dCTP, dATP & dTTP
• D) dGTP, dCTP, dCCP & dTTP

In open complex, region 1.1 of sigma is ____ charged.

• A) neutral
• B) negatively
• C) positivly
• D) partially positively

"Two parental strands separate and that each then serves as a template for a new progeny". This statement proposed by ........

• A) Mendel
• B) None of the given options
• C) Meselson and Stahl
• D) Watson and Crick

Helicase is responsible for increasing the activity of ______.

• A) polymerase
• B) RNAse
• C) DNAse
• D) primase

During elongation of RNA, the length of transcription bubble is _____.

• A) changing
• B) increasing
• C) decreasing
• D) constant

Supercoils in DNA are removed by the action of

• A) Topoisomerases
• B) Polymerases
• C) Helicases
• D) All of these

Nucleoside triphosphate have three phosphoryl groups attached to the ........ hydroxyl of deoxyribose.

• A) 2'
• B) 1'
• C) 5'
• D) 3'

In initiation of transcription, RNA polymerase binds with ____.

• A) primer
• B) promises
• C) primase
• D) promoter

During elongation of RNA, number of nucleotides added at a time is/are---------------.

• A) 0
• B) 2
• C) 3
• D) 1

In the process of transcription, ________ phase starts after the successful addition of 10 bases .

• A) initiation
• B) termination
• C) degradation
• D) enlongation

Telomerase specifically elongates the _____ of telomeric ssDNA sequences using its own RNA as a template.

• A) 3’-OH
• B) None of these
• C) 6’-OH
• D) 5’-OH

The specific sites at which DNA unwinding and initiation of replication occur are called

• A) Origins of Replication
• B) None of these
• C) Origins of Reproduction
• D) Origins of Duplication

Topoisomerases work on _____ DNA.

• A) double stranded
• B) hybrid
• C) both
• D) single stranded

Central dogma was identified in ____.

• A) 1954
• B) 1958
• C) 1956
• D) 1657

Number of RNA polymerases in _____ is one.

• A) yeast
• B) bacteria
• C) fungi
• D) animals