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Terms in this set (33)
RNA polymerase that uses DNA template to make short pieces of RNA
Type of DNA polymerase that makes repairs
DNA polymerase I
Type of DNA polymerase with unknown function
DNA polymerase II
Enzyme that unwinds DNA during replication
Enzyme that hooks the 5' end to the 3' end
What is the region of DNA called that is recognized by RNA polymerase?
How many kinds of RNA polymerase are found in prokaryotes?
one, sigma and rho are also used
The process whereby RNA is copied from a DNA template is called _____.
Where does transcription occur in prokaryotes?
Where does transcription occur in eukaryotes?
Name the enzyme which attaches an amino acid to ATP and then to a tRNA.
aminocyl tRNA synthetase
Identify the minimal number of mRNA codons needed to permit synthesis of a polypeptide containing 57 amino acids.
What is the number of nucleotides in DNA that code for a single mRNA codon?
What is the number of nucleotides in a single anticodon
What is the number of different kinds of amino acid molecules that are generally found in proteins
What is the number of amino acids that attach to a single tRNA molecule?
Sequence of nucleotides specifying an amino acid
A code in which there is more than one codon for a given amino acid.
A codon which apparently does not designate an amino acid
the structure formed by alignment of several ribosomes along an mRNA molecule
the process in which a mRNA molecule is copied into an amino acid sequence
What is meant by the term oncogenesis
initiation of tumor formation
What are the four known causes of oncogenesis?
viruses, heredity, spontaneous, radiation and mutagens
the major difference between cancerous and normal cells is _____
Three characteristics that distinguish cancer cells from normal cells.
growth factors, growth-inhibiting factors, cellular differentiation, non-metastatic
normal genes that have regulated cell development
What protein regulates cell growtha nd suppresses cell division? Also one of the most studied in regards to cancer. And can account for around 50% of all cancers
Any agent, chemical or physical, that leads to an increased rate of cancer.
In its native form its not harmful; in its chemically modified form its harmful (causes cancer)
What accounts for 30% of cancer deaths?
What is the most lethal carcinogen that exists?
Which form of UV light most commonly induces skin cancer by causing genetic mutations?
What is the name of the enzyme within the ribosome that detaches an amino acid (or chain of amino acids) from the tRNA in the P site and forms a peptide bond with the amino acid (or chain of amino acids) in the A site.
THIS SET IS OFTEN IN FOLDERS WITH...
Lectures 1 and 2
Lectures 1 and 2
Lectures 3 and 4
Lecture 5 and 6
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