Ch.17 - Gene ExpressionSee all chapters
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Ch.1 - Introduction to Biology
Ch.2 - Chemistry
Ch.3 - Water
Ch.4 - Carbon
Ch.5 - Biological Molecules
Ch.6 - Cells
Ch.7 - The Membrane
Ch.8 - Energy and Metabolism
Ch.9 - Respiration
Ch.10 - Photosynthesis
Ch.11 - Cell Signaling
Ch.12 - Cell Division
Ch.13 - Meiosis
Ch.14 - Mendelian Genetics
Ch.15 - Chromosomal Theory of Inheritance
Ch.16 - DNA Synthesis
Ch.17 - Gene Expression
Ch.18 - Regulation of Expression
Ch.19 - Viruses
Ch.20 - Biotechnology
Ch.21 - Genomics
Ch.22 - Development
Ch.23 - Evolution by Natural Selection
Ch.24 - Evolution of Populations
Ch.25 - Speciation
Ch.26 - History of Life on Earth
Ch.27 - Phylogeny
Ch.28 - Prokaryotes
Ch.29 - Protists
Ch.30 - Plants
Ch.31 - Fungi
Ch.32 - Overview of Animals
Ch.33 - Invertebrates
Ch.34 - Vertebrates
Ch.35 - Plant Anatomy
Ch.36 - Vascular Plant Transport
Ch.37 - Soil
Ch.38 - Plant Reproduction
Ch.39 - Plant Sensation and Response
Ch.40 - Animal Form and Function
Ch.41 - Digestive System
Ch.42 - Circulatory System
Ch.43 - Immune System
Ch.44 - Osmoregulation and Excretion
Ch.45 - Endocrine System
Ch.46 - Animal Reproduction
Ch.47 - Nervous System
Ch.48 - Sensory Systems
Ch.49 - Muscle Systems
Ch.50 - Ecology
Ch.51 - Animal Behavior
Ch.52 - Population Ecology
Ch.53 - Community Ecology
Ch.54 - Ecosystems
Ch.55 - Conservation Biology

RNA Processing

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Gene Expression and the Genetic Code
RNA Processing
Additional Problems
Introns are removed during RNA processing. a. True b. False
Which of the following is a characteristic of RNA splicing in Eukaryotes?a. It involves recognition of sequence-specific intron/exon boundary sites by cytoplasmic proteins.b. Exon/intron boundaries are typically characterized by a 5' GU splice junction and a 3' AG splice junction.c. It involves removal of introns from a gene sequence followed by transcription and subsequent splicing of exons.d. After splicing occurs, the U1, U2, U5, U6 snRNP complex removes remaining exons for degradation.
The following eukaryotic structural gene contains two introns and three exons. The table below shows four possible mRNA products of this gene. Use the labels to explain what may have caused each mRNA. Drag the correct label to each location in the table. Labels may be used once, more than once, or not at all.
In eukaryotic cells sequences of mRNA that are removed from an mRNA molecule before being translated are:  a. Introns b. Anticodons c. Exons d. Proteomes e. Terminators
If you compared the DNA sequence of a gene with the sequence of the mature mRNA that was transcribed from the gene you would find:  a. The mRNA is shorter because it does not contain exons b. Both are the same length c. The mRNA is shorter because it does not contain introns d. The mRNA is shorter because each codon of three bases encodes only one amino acid e. The mRNA is longer because each codon of one amino acid encodes three bases
What is the driving force of chain growth/elongation in RNA synthesis? And explain how.
Describe how RNA differs from DNA in structure and function. List the three types of-RNA involved in protein synthesis and describe the function of each.
What causes the tRNA molecule to form stem-loops?
Name three post transcriptional modifications that are made to a RNA transcript in eukaryotes.
Construct a table listing the three types of RNA and for each write a paragraph describing its function and whether it deals with the process of transcription or translation.
In Eukaryotes, what are the 3 modifications between the initial transcription of a premRNA and the time it leaves the nucleus. What are they?
During "RNA processing"A. all of the exons are removed and discardedB. the RNA molecule is made from a DNA templateC. introns are cut from the RNA and the exons are spliced togetherD. the RNA molecule is translated into a protein molecule
For RNA transcription, define what determines where it begins, when it begins, and where it ends.
What is common between miRNA and siRNA?
What is meant by A, P and E in the ribosome?
Briefly explain the differences among messenger RNA, transfer RNA and ribosomal RNA in terms of the roles they play in transcription and translation and where they are found in the cell.
What are the differences and the similarities between transposable elements that utilize an RNA intermediate and those that do not? Be sure to cover structural, functional, and behavioral differences.
Describe the three stages of transcription: initiation, elongation, and termination.