Exam 8: Rna: Transcription and Processing

Name the three major modifications of mRNA in eukaryotes before it is transported to the cytoplasm.In addition,tell why each of the modifications is necessary.

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Question 1

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1)Add 5′ cap to protect against RNA degradation and to act as a binding site for the initiation of translation;
2)add poly-A tail to the 3′ end of the transcript to protect against degradation and aid in the transfer of the mRNA to the cytoplasm;and
3)remove introns to generate an intact open reading frame for translation.

The carboxyl tail domain of RNA polymerase II plays a key role in:

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Question 2

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Why is transcription in eukaryotes more complex than in prokaryotes?

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Question 3

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The "RNA World" theory suggests that:

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Question 4

Which of the following mRNA codons would form a codon-anticodon base pairing interaction with the 3′-UAG-5′ tRNA anticodon?

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Question 5

RNA synthesis is always 5' to 3' because:

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Question 6

If the DNA template 5′-ATGCATGC-3′ were transcribed to RNA,the RNA would read:

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Question 7

A key characteristic of bacterial RNAs that is not observed with eukaryotic RNAs is that:

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Question 8

The initial discovery of the spliceosome resulted from experiments focused on:

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Question 9

RNA polymerase can transcribe in different directions on a chromosome.This is enabled because:

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Question 10

The role of tRNA is to:

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Question 11

These functional RNAs function to regulate protein production of specific genes.

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Question 12

For protein-encoding genes,six general transcription factors (GTFs)function to:

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Question 13

Which of the following is evidence that RNA was a message-carrying intermediary between DNA and protein?

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Question 14

Before the completion of the human genome project,it was generally estimated that human DNA would contain up to 100,000 genes.We now know humans contain only around 25,000 individual genes within our genomes.This "gene count" is so surprising because:

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Question 15

The spliceosome functions to:

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Question 16

The experimental value of a "pulse-chase" cellular labeling experiment using radioactive uracil is that:

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Question 17

The -10 and the -35 boxes found in bacterial gene promoters function to:

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Question 18

Which of the following acts before the others?

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Question 19

What are the three major classes of functional RNAs? Briefly describe the role of each class of functional RNA.

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Question 20

Showing 1 - 20 of 53

Name the three major modifications of mRNA in eukaryotes before it is transported to the cytoplasm.In addition,tell why each of the modifications is necessary.

The carboxyl tail domain of RNA polymerase II plays a key role in:

Why is transcription in eukaryotes more complex than in prokaryotes?

The "RNA World" theory suggests that:

Which of the following mRNA codons would form a codon-anticodon base pairing interaction with the 3′-UAG-5′ tRNA anticodon?

RNA synthesis is always 5' to 3' because:

If the DNA template 5′-ATGCATGC-3′ were transcribed to RNA,the RNA would read:

A key characteristic of bacterial RNAs that is not observed with eukaryotic RNAs is that:

The initial discovery of the spliceosome resulted from experiments focused on:

RNA polymerase can transcribe in different directions on a chromosome.This is enabled because:

The role of tRNA is to:

These functional RNAs function to regulate protein production of specific genes.

For protein-encoding genes,six general transcription factors (GTFs)function to:

Which of the following is evidence that RNA was a message-carrying intermediary between DNA and protein?

Before the completion of the human genome project,it was generally estimated that human DNA would contain up to 100,000 genes.We now know humans contain only around 25,000 individual genes within our genomes.This "gene count" is so surprising because:

The spliceosome functions to:

The experimental value of a "pulse-chase" cellular labeling experiment using radioactive uracil is that:

The -10 and the -35 boxes found in bacterial gene promoters function to:

Which of the following acts before the others?

What are the three major classes of functional RNAs? Briefly describe the role of each class of functional RNA.

The Genetics Revolution

Single-Gene Inheritance

Independent Assortment of Genes

Mapping Eukaryote Chromosomes by Recombination

The Genetics of Bacteria and Their Viruses

Gene Interaction

Dna: Structure and Replication

Proteins and Their Synthesis

Gene Isolation and Manipulation

Regulation of Gene Expression in Bacteria and Their Viruses

Regulation of Gene Expression in Eukaryotes

The Genetic Control of Development

Genomes and Genomics

The Dynamic Genome: Transposable Elements

Mutation, Repair, and Recombination

Large-Scale Chromosomal Changes

Population Genetics

The Inheritance of Complex Traits

Evolution of Genes and Traits

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