Biology Questions and Answers
- After the fact that it is
based on information from
mRNA what is the process of
protein synthesis called?
Protein synthgenetic information into pesis is called traroteins).nslation (of
- What is the difference
between transcription and
translation?
Transcription is thformation of DNA me name given to theolecules from an
open DNA chaiTranslation is the making on used as a template.f
polypeptides (amino acids bound in
sequence) and thus oon information encoded in the mRNAf proteins based
molecule.
In eukaryin the nucleus anotic cells transcription occursd translation occurs in (^)
ribosomes. Ttranslation. ranscription precedes
- How do nucleotides of
mRNA chains encode
information for the formation
of the amino acids sequences
of a protein?
There are only four types of nitrogen-containing bases that can compose RNA
nucleotides: adenine (A), uracil (U),
guanine (G) and cytosine (C). acids however are 20 different ones.Amino
Considering only one nucleotide (a 1:1
coding) it would be impossible to coall amino acids. dify
Considering two nucleotides there wouldbe an arra2, resulting in a total of only 16 ngement of 4 elements, 2 xpossible (^)
codifier units (4 x 4). Nature may know
combinatory analysisgenetic code by arrangement of the 4 since it makes a
RNA bases, 3 x 3, providing 64 different
triplets (4 x 4 x 4).
So each triplet of nitrogen-containing
bases of RNA codifies oa protein. As these triplets apne amino acid pear in of
sequence in the RNA molecule,
sequential amino are bound together to make pacids codified by themolypeptide (^)
chains. Focodifies thr exame amino ple, a UUU sequenceacid phenylalanine, (^)
as well the UUC sequence; the ACU,
ACC, ACA anamino acid thrd ACG seeonine; and so on for allquences codify the
possible triplet sequences and all other
amino acids.
- What is the name of an
RNA sequence that codifies
one amino acid?
Each sequence of three nitrogen-
containing bone amino acid ases of RNA that cois called a codon. Thedifies (^)
codon is the codifier unit of the genetic
code.
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