Chapter 7 Microbiology
Terms in this set (21)
Specific sequence of nucleotides that code for RNA or polypeptide molecules
Complete set of genes or genetic material present in cell or organism
a sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule
the nucleotide triplets of DNA and RNA molecules that carry genetic information in living cells.
Results in double stranded DNA with one parental strand and a new daughter strand
the synthesis of an RNA copy of a segment of DNA. RNA is synthesized by the enzyme RNA polymerase.
RNA used as a guide to make proteins
enzyme that synthesizes RNA
Unzips strands on double helix of DNA
Builds RNA Primer
Matches and lays nucleotides to build the daughter DNA strand
Joins the adjacent okazaki fragments on the lagging strand of DNA
DNA exchange: recipient cell takes up DNA from environment
DNA exchange: transfer of DNA from one cell to another via replicating virus
DNA exchange: donor cell remains alive; requires physical contact between donor and recipient
Antibiotic Resistant Bacteria
Mutated bacteria survive antibiotic attack and pass along mutation to offspring
What is DNA?
Deoxynucleic acid is a double stranded helix found in the nucleus of a cell and contains information for making polypeptides (the building blocks for creating an organism also known as proteins).
Which four nitrogen based nucleotides make up DNA?
Adenine, Thymine, Cytosine & Guanine
(A, T, C & G)
What is considered the "backbone" of DNA?
The backbone of DNA is made up of deoxyribose sugars and phosphates.
According to the base pairing rule, which bases pair together in DNA?
Adenine pairs with Thymine (A & T)
Cytosine pairs with Guanine (C & G)
What type of bond holds the nitrogen base pairs of DNA together?
A weak hydrogen bond
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