EBK CAMPBELL BIOLOGY
10th Edition
ISBN: 9780136539414
Author: Reece
Publisher: VST
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Chapter 21.2, Problem 3CC
MAKE CONNECTIONS Ø The ENCODE pilot project found that at least 75% of the genome is transcribed into RNAs, far more than could be accounted for by proteiri-coding genes. Review Concepts 17.3 and 18.3 and suggest some roles that these RNAs might play.
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Label the structural features of the yeast phenylalanine tRNA.
Answer Bank
region that carries the amino acid
at its end
Extra arm
5' end
region that contains the bases
ribothymidine and pseudouridine
region that contains the
base dihydrouridine
region that contains the anticodon,
which base pairs with the mRNA
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Chapter 21 Solutions
EBK CAMPBELL BIOLOGY
Ch. 21.1 - Describe the whole-genome shotgun approach.Ch. 21.2 - Prob. 1CCCh. 21.2 - Explain the advantage of the systems biology...Ch. 21.2 - MAKE CONNECTIONS The ENCODE pilot project found...Ch. 21.2 - MAKE CONNECTIONS In Concept 20.2, you learned...Ch. 21.3 - The best estimate is that the human genome...Ch. 21.3 - Prob. 2CCCh. 21.3 - WHAT IF? What evolutionary processes might...Ch. 21.4 - Discuss the characteristics of mammalian genomes...Ch. 21.4 - VISUAL SKILLS Which of the three mechanisms...
Ch. 21.4 - Contrast the organizations of the rRNA gene family...Ch. 21.4 - MAKE CONNECTIONS Assign each DNA segment at the...Ch. 21.5 - Describe three examples of errors in cellular...Ch. 21.5 - Explain how multiple exons might have arisen in...Ch. 21.5 - What are three ways that transposable elements are...Ch. 21.5 - WHAT IF? In 2005, Icelandic scientists reported...Ch. 21.6 - Prob. 1CCCh. 21.6 - Prob. 2CCCh. 21.6 - Prob. 3CCCh. 21 - How did the Human Genome Project result in more...Ch. 21 - What has been the most significant finding of the...Ch. 21 - Compare genome size, gene number, and gene density...Ch. 21 - Explain how the function of transposable elements...Ch. 21 - How could chromosomal rearrangements lead to the...Ch. 21 - What type of Information can be obtained by...Ch. 21 - Bioinformatics intludes all of the following...Ch. 21 - Homeotic genes (A) encode transcription factors...Ch. 21 - Prob. 3TYUCh. 21 - DRAW IT Below are the amino acid sequences(using...Ch. 21 - EVOLUTION CONNECTION Genes important in the...Ch. 21 - scientific inquiry The scientists mapping the SNPs...Ch. 21 - Prob. 7TYUCh. 21 - SYNTHESIZE YOUR KNOWLEDGE Insects have three...
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- Q1 There are similarities and differences during regulation of gene expression in both prokaryotes and eukaryotes. Promoters, transcription factors and RNA polymerase are essential elements in transcription but their properties and function may differ. b) Hypothesize the transcription of eukaryotic genes using prokaryotic promoter with further explanation.arrow_forward• Draw a figure of a gene model containing labeled 5' and 3' UTRs, exons, and introns. Label the promoter region, the transcription start site and the translation start and stop. • Use your figure to show how alternative splicing can generate two different mature mRNAs from your gene model that nevertheless share some coding sequence. Draw these alternative mRNAs and indicate where are the 5' and 3' UTRs in the mature mRNAs.arrow_forwardasap please A partially filled diagram of eukaryotic gene structure is shown below. Label the following additional elements in the empty boxes. One label must be used twice: a) 3'UTR, b) 5'UTR, c) exon, d) intron, e) promoterarrow_forward
- Pls help ASAParrow_forwardWHAT IF? What would be the effect of treating cellswith an agent that removed the cap from mRNAs?arrow_forwardQ14: The figure below shows a ribosome in the process of translating an mRNA with the sequence: 5'..AUGCCGUAUGCUCUUUA...3' Elongation 3 5 3 3 LAUGEEGUAUGCU UACGGC CG AUGC EUT P sitez UAC A site A Met Pro Pro Met Anticodon Met Amino Incoming- tRNA terminus Pro © 2001 Sinauer Associates, Inc. The right side shows the ribosome with an empty A site aligned with the codon 5’UAU 3’. The next tRNA to occupy the A site on the ribosome will have what anti-codon sequence ( label 5' and 3’)? Keep in mind the wobble pairing rules and make sure your answer is consistent with the genetic code. Explain your answer. а. b. Suppose, just as the ribosome started translating the mRNA, the cell suddenly lost all of its alanine tRNAs. Using the figure above as a guide, draw and label the state the ribosome would arrest in.arrow_forward
- please help with thisarrow_forwardQ10. Does frame +2 have an ORF in the coding region of this exon? What about frame +1 and frame +3? Q11. Given that 3 of the 64 possible codons are stop codons, what is the chance of having a stop codon at any given position, assuming that the sequence is random?arrow_forwardPls help ASAParrow_forward
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