Answer: The maximum number of amino acids that could be coded is 2
Explanation:
- A codon in this microorganism is 2 bases instead of 3 bases .
- In order to encode a protein a sequence requires a start and stop codon
- If you assume no start codon: then only 2 bases would make up the stop codon.
- This leaves 4 bases which is 2 codons. This would encode 2 amino acids.
- If you assume a start and stop codon, then each codon would be allocated 2 base pairs each = 4 base pairs
- This only leaves 2 base pairs, a single codon which would only code for 1 amino acid
Answer:
When directed mutagenesis which is also called reverse genetics is used, only a single mutation per genome is introduced. In contrast, the number of mutations per genome introduced by random mutagenesis is usually difficult to control. It is likely that the strain you obtained with a mutation in gene X after random mutagenesis contained an additional mutation or perhaps multiple mutations which ultimately was/were responsible for loss of virulence in your favorite pathogen.
Nucleosomes are composed of "histones" class of molecules.
<u>Explanation:</u>
Histones usually presented in eukaryotic nuclei of cells which seemed as strong level of proteins that bundle and organize DNA into structural groups called nucleosomes in biological science.
They are chromatin's chief protein elements, functioning as spools along which DNA spins, and playing a major role in regulating genes. Five forms of histones have been recognized:
- H1 (or H5), H2A, H2B, H3, and H4;
- H2A, H2B, H3, and H4 are the main histones and H1 and H5 are the linker histones.
Earth's atmosphere helps maintain a constant temperature.
