Assessment 4
Which part of the mRNA is recognized by the small ribosomal subunit during initiation of translation?
1/1
Poly A tail
Promoter region
5’ cap
Introns
Exons
Codon
2' OH
Which part of the template DNA strand do transcription factors bind to initiate translation?
1/1
Poly A tail
Promoter region
5’ cap
Introns
Exons
Codon
2' OH
Which component of a processed mature mRNA prevents degradation of the 3' end?
1/1
Poly A tail
Promoter region
5’ cap
Introns
Exons
Codon
2' OH
Which component of mRNA is complementary to the anti-codon of tRNA?
1/1
Poly A tail
Promoter region
5’ cap
Introns
Exons
Codon
2' OH
This level of DNA packaging involves wrapping of the DNA double helix around a core of histone proteins.
1/1
Scaffolds
Solenoids
Chromosomes
Nucleosomes
Duplex DNA
This level of DNA packaging is visible during metaphase of Mitosis.
1/1
Scaffolds
Solenoids
Chromosomes
Nucleosomes
Duplex DNA
The amino acid sequence of a protein represents which structural level?
1/1
elemental
primary
secondary
tertiary
quaternary
basal
Alpha-helices and beta-pleated sheets represent which structural level of proteins?
1/1
elemental
primary
secondary
tertiary
quaternary
basal
What is the non-covalent bond of DNA and RNA molecules?
1/1
Hydrogen Bonds
Barry Bonds
James Bonds
Phosphodiester Bonds
Van der Waals Forces
Ties that bind
What is the covalent bond of DNA and RNA molecules?
1/1
Hydrogen Bonds
Barry Bonds
James Bonds
Phosphodiester Bonds
Van der Waals Forces
Ties that bind
Which of the following nucleotides are purines?
2/2
Ribose
Adenine
Cytosine
Guanine
Deoxyribose
Uracil
Thymine
What is the process of combining different exons of the same gene to produce unique proteins?
1/1
Reverse transcription
DNA replication
Serial Endosymbiont Theory
Imprinting
Alternative Splicing
Confirmation bias
Which type of RNA functions to deliver amino acids to the ribosome during translation?
1/1
mRNA
tRNA
rRNA
siRNA
miRNA
Which type of RNA is translated to a sequence of amino acids at the ribosome?
1/1
mRNA
tRNA
rRNA
siRNA
miRNA
Which of the following are differences between DNA and RNA?
1/1
DNA contains Uracil and RNA contains Thymine
DNA is double stranded and RNA is single stranded
DNA has ribose sugar and RNA has deoxyribose sugar
DNA is transported to the cytoplasm while RNA remains in the nucleus
All of the above
What are the covalent bonds of proteins formed during translation?
1/1
Strong nuclear force
Weak nucelar force
Peptide Bonds
Hydrogen Bonds
Phosphodiester bonds
Barry Bonds
Which of the following statements is/are true?
2/2
DNA replication of the LEADING strand is discontinuous
DNA replication of the LAGGING strand is discontinuous
DNA replication of the LEADING strand is dispersive
DNA replication of the LAGGING strand is conservative
Okazaki fragments synthesized from the LAGGING strand are ligated together
What is the enzyme at the P site of the ribosome that catalyzes the peptide bond?
1/1
DNA polymerase
RNA Polymerase II
Helicase
Primase
Peptidyl transferase
Topoisomerase
Ligase
What is the enzyme that separates the two strands of the DNA molecule during DNA replication?
1/1
DNA polymerase
RNA Polymerase II
Helicase
Primase
Peptidyl transferase
Topoisomerase
Ligase
What is the enzyme that joins Okazaki fragments on the lagging strand during DNA replication?
1/1
DNA polymerase
RNA Polymerase II
Helicase
Primase
Peptidyl transferase
Topoisomerase
Ligase
What is the mRNA sequence transcribed from the following template DNA sequence?
2/2
5’ - AUG CCC UAC UGC - 3’
3’ - AUG CCC UAC UGC - 5’
3’ - ATG CCC TAC TGC - 5’
5’ - ATG CCC TAC TGC - 3’
Which of the following are necessary to initiate expression of a gene?
1/1
reverse transcription of mRNA to DNA
ligase to join the okazaki fragments of exons
binding of transcription factors to the promoter region
synthesis of mRNA by DNA polymerase