NEW
Font size
WorksheetsHL Bio DNA
Total questions: 16
Worksheet time: 8mins
DNA Polymerase III adds nucleotides from:
3' to 5' on the lagging strand
5' to 3' on both strands
3' to 5' on the leading strand and 5' to 3' on Okazaki fragments
none of the above are true
tRNA activating enzyme does what job?
Reloads a tRNA with a new amino acid
links amino acids together forming peptide bonds
enters the A site and moves to the p site
pairs anticodons with codons
Quartenary protein structure involves
the sequence of amino acids
Alpha helices or beta pleated sheets
Additional folding based on R-group charges
Multiple polypeptide chains coming together
The difference between bound and free ribosomes is:
Bound ribosomes make proteins for cellular use
Bound proteins are in the cytoplasm
Bound proteins create proteins for excretion
None of the above are true
The difference between codons and anticodons is
codons are on tRNA
anticodons are on tRNA
anticodons are used in transcription
all of the above are true
What is the central dogma of biology
RNA --> DNA --> PROTEIN
Protein --> RNA --> DNA
DNA--> RNA --> Protein
DNA --> Protein --> RNA
Increased methylation on DNA causes:
reduced frequency of transcription
increased frequency of transcription
increased translation rates
increased polysome counts
What is the difference between exons and introns?
exons have coding sections of DNA
introns are coding regions of DNA
introns reduce methylation rates
exons increase methylation rates
Alternative splicing:
allows for additional protein creations from the same DNA segment
removes different exons
creates variety, as in antibody production
all of the above
Which of the following is not a step of transcription
Intitation
Elongation
Inhibition
Termination
Rosalind Franklin helped determine
that DNA was the genetic material
DNA is a double helix
DNA is in all living things
DNA is made of nucleotides
DNA Polymerase I
Adds primers to new strands
Links Okazaki fragments
Changes RNA primers to DNA
Adds the new nucleotides on the lagging strand
Which of the following is not a 'non-coding' region of DNA
Telomeres
Exons
Gene regulatory systems
Satellite DNA
A nucleosome:
is made of histones
is not in prokaryotes
supercoils the DNA
All of the above
The #1 song on the Billboard Hot 100 this week is
Sicko Mode - Travis Scott
Happier- Marshmallo & Bastille
Without Me - Halsey
Thank U, Next - Ariana Grande
The current #1 movie is
Creed II
Ralph Breaks the Internet
Fantastic Beasts 2
The Grinch
