biology help please????????????

Biology
Tutor: None Selected Time limit: 1 Day

define these words:

  • Transfer RNA
  • Transcription
  • Translation
  • Initiation
Mar 24th, 2015

  1. Transfer ribonucleic acid (tRNA) is a type of RNAmolecule that helps decode a messenger RNA(mRNA) sequence into a protein. tRNAs function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule

  2. Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both RNA and DNA are nucleic acids, which use base pairs of nucleotides as a complementary language.

     3.  translation is the process in which cellularribosomes create proteins.

4. The mRNA molecule to be decoded binds to one subunit of the ribosome, then the other ribosomal subunit binds to both of those. In the process, a tRNA with the amino acid methionine attached docks in the ribosome's P site. 

Mar 24th, 2015

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Mar 24th, 2015
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Mar 24th, 2015
Dec 2nd, 2016
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