GB1 exam 1
In a nucleotide, the phosphate group is attached to the ___ carbon and the base is attached to the ___ carbon.
5'; 1'
The lagging strand is the daughter strand that has its ____ end pointed toward the replication fork and is therefore synthesized ____.
5ʹ; in a series of segments
If the top strand of this DNA is the template strand, which rNTP will be the last added to the RNA transcribed from this template? 5'-TAAACAATGGTCGACATTG-3' 3'-ATTT GTTACCAGCTGTAAC-5'
A
where the new incoming tRNA bind to mRNA
A Site
The growing protein chain might be attached to a tRNA in which site(s):
A or P site
Which of the following components of transcription is found only in eukaryotes?
Transcriptional activator protein
If the bottom strand of this DNA is the template strand, which rNTP will be the last added to the RNA transcribed from this template? 5'-CAAACAATGGTCGACATTT-3 3'GTTTGTTACCAGCTGTAAA-5'
U
Which of the following is NOT a base found in DNA?
Uracil
The enzyme responsible for adding repetitive sequences to the ends of linear eukaryotic chromosomes is:
telomerase
E Site
the tRNA that just gave up its amino acid, now empty, exit the ribosome to go restock their amino acid.
Which of the following is NOT required for evolution by natural selection?
All of the other answers are required A. Variation B. Heritability (offspring resemble parents) C. Differential survival or reproduction
Which of the following is a valid scientific hypothesis?
Bar-headed geese can fly at higher altitudes than Canada geese
In this tree, which pair of species are most closely related?
Bonobos and chimpanzees
DNA is synthesized starting from the RNA primer by _____, then the primer is replaced with DNA by _____.
DNA polymerase III; DNA polymerase I
In our experiment on the effect of vitamin C on cold prevention, the number of people in the control and experimental groups who get sick is a/an
Dependent variable
What is degeneracy?
Different mRNA codons can result in the same AA
Based on this phylogenetic tree, what is a trait shared by gorillas and bonobos but not orangutans?
Elongated skull
Which of the following base pair connections is stronger?
Guanine-Cytosine
The enzyme ____ relieves supercoiling tension that builds up as DNA unwinds.
Gyrase
The Central Dogma of Molecular Biology describes the flow of ______ in a cell.
Information
Which of the following is/are transcribed?
Introns
Why is carbon so versatile?
It can potentially form several bonds with multiple other atoms
What is the role if ligase in DNA replication?
It creates phosphodiester bonds to join Okazaki fragments
Why is water so versatile?
It is polar
Which of the following is NOT a desirable quality in a control group of an experiment?
It should allow the testing of multiple alternate hypotheses
In which direction is the strand in green synthesized? Green line on botton left side facing 5'
Left ←
In which direction is the strand in green synthesized? 5' and green on top left side
Left ←
If protein was the genetic material, what would happen if you treated the dead bacteria with protease before mixing with the live bacteria?
No transformation would occur
where the amino acids on the tRNA make a peptide bond with the amino acids on the rRNA at the A site forming a long amino acid chain
P Site
Which of the following is one of the "Big Six" elements most common in living organisms?
Phosphorus
How did Avery know protein was not the transforming factor?
Protease treated extract could transform non-virulent cells into virulent cells
How did Avery know RNA was not the transforming factor?
RNase treated extract could transform non-virulent cells into virulent cells
In which direction was the strand in green synthesized?
Right →
The process of DNA replication is:
Semi-Conservative
Which of the promoter and terminator sequences are transcribed?
Terminator
