Question

question 13
if the dna sequence is tac ttg acc, what would be the resulting amino acid sequence after transcription and translation?
(hint: think of the first step of protein synthesis? do this first and then find the amino acid sequence.)
question 14
loops of bacterial dna that scientists use to make recombined dna are called plasmids.

Explanation:

Step1: Transcribe DNA to mRNA

DNA sequence: TAC TTG ACC
mRNA is complementary to DNA. A pairs with U, T pairs with A, C pairs with G.
mRNA sequence: AUG AAC UGG

Step2: Translate mRNA to amino - acid

Using the codon table:

• AUG codes for Met (methionine)
• AAC codes for Asn (asparagine)
• UGG codes for Trp (tryptophan)

for Question 14:
Plasmids are small, circular, double - stranded DNA molecules that are distinct from a cell's chromosomal DNA. Bacterial plasmids are often used in recombinant DNA technology. Scientists can insert foreign DNA into plasmids and then introduce these recombinant plasmids into bacteria for cloning or expression of the inserted gene.

Answer:

C. Met - Asn - Trp