A typical human cell contains about___ million copies of each kind of histone___

• A) 60
• B)
• C)
• D)

The general transcription factors help polymerase bind to the __________and melt the DNA.

• A) promoter
• B) enhancer
• C)
• D)

The binding of histones to phosphate group of a nucleotide is aided by___ charged site chain of ___:

• A) Positive, Arginine
• B)
• C)
• D)

RNA polymerase starts most transcripts with _____________ ribonucleotide

• A) thymine
• B) adenine
• C)
• D)

Which shows the correct complimentary base pairing of DNA ___

• A) A-T, G-C
• B)
• C)
• D)

Spliceosomes are huge molecular machine that mediate _______________ reactions

• A) High energy
• B) Neutralization
• C) Transesterification
• D) Hydrolysis

The nucleotide containing nitrogenous base cytosine is known as:

• A) Deoxycytidylate
• B)
• C)
• D)

During elongation, the enzyme adds ______________nucleotide at a time to the growing RNA transcript

• A) 1
• B) 2
• C) 5
• D) 3

A nucleosome has about ___ nucleotides in eukaryotic genome__

• A) 400
• B)
• C)
• D)

phosphorylation of the CTD leads to an exchange of initiation factors for those factors required for______________

• A) termination
• B) elongation
• C)
• D)

The percentage of nucleic acid in relation to protein is about ____ for the influenza virus__

• A) 1%
• B)
• C)
• D)

In RNA splicing mature mRNA contains __________.

• A) 3 codons
• B) Introns and Exons
• C) Exons
• D) Introns

CH3 Group attached at___ of thymine nitrogenous base__

• A) C5
• B)
• C)
• D)

Find the wrong statement in the following:

• A) Introns are very often much longer than the exons they separate
• B) Once transcribed into an RNA transcript, the introns must be removed
• C) Primary transcripts of intron-containing genes must have their introns removed before they can be translated into proteins.
• D) The primary transcript only contains exons

_____ is the nucleoside name of nucleotide adenosine___

• A) Deoxyadenosine
• B)
• C)
• D)

The internal guide sequence of group I introns base pairs with ______________.

• A) No specific site
• B) 5’ and 3’ site
• C) 3’ splice site sequence
• D) 5’ splice site sequence

Key substrate required for the synthesis of DNA to proceed are ___ and____:

• A) deoxynucleoside triphosphate , Primer
• B)
• C)
• D)

During RNA splicing pre-mRNA is converted into mature mRNA containing __________.

• A) Introns
• B) Introns and Exons
• C) 3 codons
• D) Exons

The two DNA strands in double helix are joined by___

• A) Hydrogen bond
• B)
• C)
• D)

The coding sequence of a gene is a series of codons that specifies the ____________ of amino acids in the polypeptide product.

• A) RNA sequence
• B) Structure
• C) Linear sequence
• D) DNA