Questions from Genetics


Q: An mRNA has the following sequence: 5′–AUG UAC

An mRNA has the following sequence: 5′–AUG UAC UAU GGG GCG UAA–3′ Describe the amino acid sequence of the polypeptide that would be encoded by this mRNA. Be specific about the amino-terminus and carb...

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Q: Which steps during the translation of bacterial mRNA involve an interaction between

Which steps during the translation of bacterial mRNA involve an interaction between complementary strands of RNA?

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Q: What is the function of the nucleolus?

What is the function of the nucleolus?

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Q: In which of the ribosomal sites, the A site, P

In which of the ribosomal sites, the A site, P site, and/or E site, could the following be found? A. A tRNA without an amino acid attached B. A tRNA with a polypeptide attached C. A tRNA with a sin...

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Q: What is a polysome?

What is a polysome?

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Q: How is this attachment of chromosomes to kinetochore microtubules different from their

How is this attachment of chromosomes to kinetochore microtubules different from their attachment during metaphase of mitosis?

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Q: Referring to Figure 13.17, explain why the ribosome translocates

Referring to Figure 13.17, explain why the ribosome translocates along the mRNA in the 5′ to 3′ direction rather than the 3′ to 5â€&sup...

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Q: Lactose permease, a protein of E. coli, is composed

Lactose permease, a protein of E. coli, is composed of a single polypeptide that is 417 amino acids in length. By convention, the amino acids within a polypeptide are numbered from the aminoterminus t...

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Q: An mRNA encodes a polypeptide that is 312 amino acids in length

An mRNA encodes a polypeptide that is 312 amino acids in length. The 53rd codon in this polypeptide is a tryptophan codon. A mutation in the gene that encodes this polypeptide changes this tryptophan...

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Q: Explain what is meant by the coupling of transcription and translation in

Explain what is meant by the coupling of transcription and translation in bacteria. Does coupling occur in bacterial and/or eukaryotic cells? Explain.

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