Molecular Biology: The Study Of Heredity At The Molecular Level

Submitted By gboover321
Words: 369
Pages: 2

1) Molecular Biology- The study of heredity at the molecular level. 2 ) bacteriophages- Viruses that only infect bacteria. 3) nucleotides- Nucleic acids consisting of long chains of monomers. 4) polynucleotide- A nucleotide polymer. 5) sugar-phosphate backbone- A repeating pattern of sugar-phosphate-sugar-phosphate. 6 )DNA 7) pyrimidines- Adenine and cytosine. 8) purines- Thymine and guanine. 9) uracil- A nitrogenous base found only in RNA not DNA.
10) Double Helix- The structure of DNA
11) semiconservative model- A model that suggest that daughter molecules will have part of the parental strand in them.
12)DNA ligase- An enzyme that links together pieces of a DNA strand.
13)DNA polymerases- Large daughter strands.
14)transcription- The synthesis of of RNA under the direction of DNA.
15)translation- The synthesis of proteins under the direction of RNA.
16)triplet code-The genetic instructions for the amino acid sequence of a polypeptide chain are written in DNA and RNA as a series of nonoverlapping three-base “words.”
17)codons- The words triplet code is written in.
18)genetic code- the set of rules that relate codons in RNA to amino acids in proteins.
19)RNA polymerase- An enzyme that links RNA nucleotides.
20)promoter- A specific biding site for RNA polymerase.
21)terminator- An enzymes that signals the polymerase molecule from the RNA.
22)messenger RNA- The kind of RNA that encodes amino acid sequences
22)introns- internal noncoding regions23)Exons