Question

transcribe and translate both the original and mutated dna strand below. what kind of mutation occurred did any changes occur to the amino acids produced?
original dna: tacgaattttcggcaattag
mutated dna: tacgaattttccgcaattag
answer:

Explanation:

Step1: Transcribe Original DNA

Transcription: DNA → mRNA. Replace T with U.
Original DNA: TACGAATTT CGGCAATTAG
mRNA: AUGCUUAAA GCCGUUAAUC

Step2: Translate Original mRNA

Translation: mRNA → amino acids (using codon table).
AUG - Methionine, CUU - Leucine, AAA - Lysine, GCC - Alanine, GUU - Valine, AUC - Isoleucine
Amino acids: Methionine - Leucine - Lysine - Alanine - Valine - Isoleucine

Step3: Transcribe Mutated DNA

Mutated DNA: TACGAATTT CCGCAATTAG
mRNA: AUGCUUAAA GGC GUUAAUC

Step4: Translate Mutated mRNA

AUG - Methionine, CUU - Leucine, AAA - Lysine, GGC - Glycine, GUU - Valine, AUC - Isoleucine
Amino acids: Methionine - Leucine - Lysine - Glycine - Valine - Isoleucine

Step5: Identify Mutation

Compare original (CGG) and mutated (CCG) codons.
It is a point mutation (single - base substitution).

Answer:

Original DNA transcription: AUGCUUAAA GCCGUUAAUC; translation: Methionine - Leucine - Lysine - Alanine - Valine - Isoleucine.
Mutated DNA transcription: AUGCUUAAA GGC GUUAAUC; translation: Methionine - Leucine - Lysine - Glycine - Valine - Isoleucine.
Mutation: Point mutation (single - base substitution). Amino acid change: Alanine (from original) → Glycine (from mutated).