alexandroperez13
19.05.2021 •
Biology
Carbon can combine with many different elements but frequently combines with oxygen,
hydrogen, and nitrogen to form organic molecules. Which statement best explains why carbon
is able to form a large number of different molecules?
A.
Carbon forms only ionic bonds.
B. Carbon can form only ring structures.
C. Carbon can form four covalent bonds.
D. Carbon forms small, simple structures.
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Ответ:
Ответ:
Question- What is the first codon that is read on the mRNA?
Answer- The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and Archaea and a modified Met (fMet) in bacteria, mitochondria and plastids. The most common start codon is AUG (i.e., ATG in the corresponding DNA sequence).