We would expect that a 15-nucleotide sequence that includes a stop codon at the end (as part of the 15-nucleotide sequence) will direct the production of a polypeptide that consists of .

4 amino acids.

Explanation:

To become translated into protein, a sequence is read in triplets called codons.

Each codon that codes for an amino acid is made up of 3 nucleotides.

Therefore, a sequence of 15 nucleotides would be translated into a polypeptide that is made up of 5 amino acids. (15 divided by 3 = 5)

However, we are told that there is a stop codon at the end of this sequence.

A stop codon is a specialised codon that does not code for an amino acid, but tells the protein machinery that the polypeptide is complete.

Therefore, the polypeptide would have 5-1 amino acids, which corresponds to 4 amino acids.

haploid cells;

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: