Question

question 5 of 25
what is a possible effect of an error during transcription?
a. the next generations of cells will all have defects.
b. the organism will become transgenic.
c. the wrong amino acid chain will be produced.
d. the dna will have a point mutation.

Explanation:

Transcription is the process of copying a segment of DNA into RNA. If there is an error during transcription, the resulting mRNA may have incorrect nucleotide sequences. Since mRNA is used as a template for protein synthesis (translation), an incorrect mRNA can lead to the production of a wrong amino acid chain (protein).

• Option A: Errors during transcription affect the current cell's mRNA and protein synthesis, not the next generations of cells (that would be due to errors in DNA replication passed on during cell division).
• Option B: A single error during transcription in one cell does not make the whole organism transgenic. Transgenic organisms have foreign genes inserted into their genome.
• Option D: Transcription errors affect RNA, not the DNA itself. DNA point mutations occur in the DNA molecule, not as a direct result of a transcription error.

Answer:

C. The wrong amino acid chain will be produced.