Chapter 15: Q. 21 (page 392)
A scientist sequencing mRNA identifies the following strand: CUAUGUGUCGUAACAGCCGAUGACCCG What is the sequence of the amino acid chain this mRNA makes when it is translated
Short Answer
Met Cys Arg Asn Ser Arg
Chapter 15: Q. 21 (page 392)
A scientist sequencing mRNA identifies the following strand: CUAUGUGUCGUAACAGCCGAUGACCCG What is the sequence of the amino acid chain this mRNA makes when it is translated
Met Cys Arg Asn Ser Arg
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Get started for freeIf mRNA is complementary to the DNA template strand and the DNA template strand is complementary to the DNA nontemplate strand, then why are base sequences of mRNA and the DNA nontemplate strand not identical? Could they ever be?
How do enhancers and promoters differ? a. Enhancers bind transcription factors to silence gene expression, while promoters activate transcription. b. Enhancers increase the efficiency of gene expression but are not essential for transcription. Promoter recognition is essential to transcription initiation. c. Promoters bind transcription factors to increase the efficiency of transcription. Enhancers bind RNA polymerases to initiate transcription. d. There is no difference. Both are transcription factor-binding sequences in DNA.
What transcripts will be most affected by low levels of ฮฑ-amanitin? a. 18S and 28S rRNAs b. pre-mRNAs c. 5S rRNAs and tRNAs d. other small nuclear RNAs
Imagine if there were 200 commonly occurring amino acids instead of 20. Given what you know about the genetic code, what would be the shortest possible codon length? Explain.
Explain how single nucleotide changes can have vastly different effects on protein function.
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