There are 81 amino acid residues in the precursor molecule of bovine insulin. What is the least number of bases that must be in
2 answers:
Answer:
246 amino bases
Explanation:
An amino acid is coded by three bases. However, in a DNA molecule, there is coding that takes place. In DNA replication, the start and stop codons are not expressed during the formation of the double helix. Hence, an extra amino acid will be needed. In fact, this can be expressed mathematically like this:
where n is the number of amino acid residues. Therefore, taking 81 amino acid residues yields:
N =
Therefore, the least number of bases needed will be 246
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There are 5.43 x 10²³ present in 187 grams of XeF₄
<h3>Further explanation </h3>The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
Moles can also be determined from the amount of substance mass and its molar mass
mass of XeF₄ = 187 g
mol XeF₄ (MW=207,2836 g/mol) :
Number of molecules :