Ans.
Codon may defined as a sequence or code made up of three nucleotide bases. There are total 64 codons, made up from different combinations of nucleic acid bases (A, G, C, T). Each codon codes for a specific amino acid. The amino acid coded by GUU codon is valine and amino acid coded by AAA codon is lysine.
Thus, the correct answer is option 'A). valine-lysine.'
A zygote contains 46 chromosomes (<span>23 pairs of homologous chromosome), the genetic information that is reproduced in the formation of the human body. The genetic makeup remains the same, it only multiplies.</span>
You can confidently conclude that the concentration of the unknown solution is less than 100ppm. Because the concentration of the liquid in the beaker is higher than that of the unknown solution that is why water move out of the dialysis bag into the beaker of water. Thus, the solution inside the beaker is an hypertonic solution, that is why it deflated the dialysis bag.
The biological species concept<span> is the most widely accepted</span>species concept<span>. It defines </span>species<span> in terms of interbreeding. For instance, Ernst Mayr defined a </span>species<span> as follows: "</span>species<span> are groups of interbreeding natural populations that are reproductively isolated from other such groups."</span>