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Genetics

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The GTP necessary in the formation of the 5' cap on the transcript is modified by the addition of which of the following groups?
This type of mutation happens when a single base in DNA is substituted with another base, for example, an A becomes a G.
The hydrolysis of GTP bound to EF-Tu after the tRNA is brought to the A site increases the _____ of translation.
Rank the order of the binding sites on the ribosome in relation to the 5' to 3' orientation of the mRNA (place site closest to the 5' end of the mRNA at the top).
In RNA splicing, the noncoding DNA is removed, and the coding DNA sequences, called ______, are expressed.
Which of these is not a modification of eukaryotic transcripts?
In eukaryotes, the initiator tRNA carries a methionine, whereas in bacteria it carries a methionine that has been modified by the attachment of which of the following groups?
True or false: Mutations are important starting points of evolution.
In eukaryotes, mRNAs have a modified guanosine covalently attached at the 5' end. This is know as the
Which of the following is a mutation that changes the structure of the chromosome itself?
When scientists synthesized an RNA molecule made of U (polyU) and translated it in cell-free translation systems, they produced a protein made of
In order to bring a tRNA to the A site of the ribosome, the elongation factor EF-Tu must bind to a charged tRNA and
The enzyme peptidyl transferase is required in the formation of ______ bonds by the ribosome.
What term can refer to gene function at the level of traits or at the molecular level?
In prokaryotes how do translation and transcription occur?
What would happen during translation if an amino acid is chemically altered after it has undergone the charging reaction (for example, a glutamine is attached to its corresponding tRNA, and is then altered to become glutamate)?
After a charged tRNA binds at the A site of the ribosome, the GTP attached to EF-Tu is hydrolyzed. How does that affect translation?
The enzymes that catalyze the attachment of _____ ______ to tRNA molecules are known as aminoacyl-tRNA synthetases.
Each aminoacyl-tRNA synthetase present in a cell recognizes ______of the 20 common amino acids. (indicate the number)
Eukaryotic genes may contain non-coding regions known as ______ because they interrupt the sequence of a gene.

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