Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780134433776
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman
Publisher: PEARSON
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Textbook Question
Chapter 14.5, Problem 3CC
WHAT IF? DRAW IT The template strand of a gene includes this sequence: 3’-TACTTGTCCGATATC-5'. It is mutated to 3’-TACTTGTCCAATATC-5’. For both versions, draw the DNA, the mRNA, and the encoded amino acid sequence. What is the effect on the amino acid sequence?
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In moelcular genetics, initiation is often accomplished using proteins that prevent elongation. Name and describe 3 processes where this happens, they can be in different species. Make sure to name or describe the proteins and substrates involved and how the elongation inhibition is overcome.
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Chapter 14 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
Ch. 14.1 - MAKE CONNECTIONS In a research article about...Ch. 14.1 - What polypeptide product would you expect from a...Ch. 14.1 - DRAW IT The template strand of a gene contains the...Ch. 14.2 - What is a promoter? Is it located at the upstream...Ch. 14.2 - What enables RNA polymerase to start transcribing...Ch. 14.2 - WHAT IF? Suppose X-rays caused a sequence change...Ch. 14.3 - Given that there are about 20,000 human genes, how...Ch. 14.3 - How is RNA splicing similar to how you would watch...Ch. 14.3 - WHAT IF? What would be the effect of treating...Ch. 14.4 - What two processes ensure that the correct amino...
Ch. 14.4 - Discuss the ways in which rRNA structure likely...Ch. 14.4 - Describe how a polypeptide to be secreted is...Ch. 14.4 - WHAT IF? DRAW IT Draw a tRNA with the anticodon...Ch. 14.5 - What happens when one nucleotide pair is lost from...Ch. 14.5 - Prob. 2CCCh. 14.5 - WHAT IF? DRAW IT The template strand of a gene...Ch. 14 - In eukaryotic cells, transcription cannot begin...Ch. 14 - Prob. 2TYUCh. 14 - The anticodon of a particular tRNA molecule is A....Ch. 14 - Prob. 4TYUCh. 14 - Which component is not directly involved in...Ch. 14 - Prob. 6TYUCh. 14 - Prob. 7TYUCh. 14 - Prob. 8TYUCh. 14 - Fill in the following table: Type of RNA Functions...Ch. 14 - SCIENTIFIC INQUIRY Knowing that the genetic code...Ch. 14 - Prob. 11TYUCh. 14 - FOCUS ON INFORMATION Evolution accounts for the...Ch. 14 - SYNTHESIZE YOUR KNOWLEDGE Some mutations result in...
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- Need help 1.The RNAs acting in RNAi are about 18 nucleotides long. To judge whether it is possible to uniquely target a particular gene with an RNA of this size, consider the following calculation: what is the expected frequency of occurrence of a specific 18 nucleotide sequence? a.The probability of finding this sequence is ___ . b.Therefore, the frequency of occurrence of this sequence is one in ___ nucleotides. c.The fruit fly genome consists of 1.2×108 base pairs.Using the logic in part a., calculate the minimum length of a unique DNA sequence expected to occur by chance just once in the fruit fly genome. Length = __ base pairsarrow_forwardWHAT IF? DRAW IT Draw a tRNA with the anticodon3¿-CGU-5¿. What two different codons could it bind to?Draw each codon on an mRNA, labeling all 5¿ and 3¿ends, the tRNA, and the amino acid it carries.arrow_forward5’ATCGCGCTAGGCGCATGCTACCTAGGCTATCTGCCTAGCTATCGACTAATCTGATCGAGTCAG3’ 3’TAGCGCGATCCGCGTACGATGGATCCGATAGACGGATCGATAGCTGATTAGACTAGCTCAGTC5’ Write out the pre-mRNA for this geneWrite out the mRNA for this geneHow many amino acids does this protein have? Translate the protein Label your 5’ and 3’ UTR’sarrow_forward
- What is the Central Dogma of biology?•. Name FOUR polymers in your body rightnOW.‡. DRAW the new DNA codon for your NEWamino acid (5'-3")gDRAW the new mRNA codon for yournew amino acid (5'-3°).arrow_forwardGTTTTCACTGGCGAGCGTCATCTTCCTACT 1. Identify the gene from which the query sequence originates (Name of the gene)2. Provide the FULL protein sequence encoded by the gene.3. Are different splice variants known for this gene?4. What human disease has been connected to this gene?5. Calculate molecular weight (kiloDalton, kD) and calculated pI (the pH where theprotein carries no net electrical charge) of the protein.6. Provide the reference (in proper reference form: Author; Year; Title; JournalName; Volume; Page Numbers) for a recent publication involving the identifiedgene. This reference should NOT be a web page reference.7. Are there homologs for the identified gene in other systems? Identify one homolog in an invertebrate system (if there is none, provide a vertebratehomolog).8. What is the function (e.g. transcriptional regulation, transmembrane signaling,kinase, protease, etc.) of the protein(s) encoded by the gene.9. Generate a FULL protein sequence alignment for one of the…arrow_forward5'– ATGGCGAGGCGGCAGCTGTTATGGTGA – 3' In the sequence above, suppose that the 20th nucleotide of the template (an T) was mutated to a A. (A) Now, what is the mRNA sequence? (B) What is the amino acid sequence of the translated protein? (C) Would this protein be able to carry out its function?arrow_forward
- Cynt Classifying mutations A certain section of the coding (sense) strand of some DNA looks like this: $-ATGTATATCTCCAGTTAG-3" It's known that a very small gene is contained in this section. Classify each of the possible mutations of this DNA shown in the table below. mutant DNA 5- ATGTATCATCTCCAGTTAG-3' S-ATGTATATCTCCAGTTAG-3 5- ATGTATATATCCAGTTAG-3' type of mutation (check all that apply) insertion deletion point silent noisy insertion O deletion point silent noisy insertion O deletion point silent Onoisy X Garrow_forward5' ACTGAGGATTCGGACAGCAATAGGATG 3' When translated, the -1 reading frame of the sequence above gives the following amino acid sequence: HPIAVRILS What triplet of nucleotides (in other words, what DNA codon) represents the amino acid "P" (proline)? a) 5' GTA 3' b) 5' CAT 3' c) 5' CCT 3' d) 5' ATC 3'arrow_forwardHelp pls !! You are looking at a region of the genome that codes for a gene involved in enamel syntheiss. You do not have a transcripome (RNA sequence). Outline a protocol for deducing the ORF and the protein sequence.arrow_forward
- Mutation #2: • Change the Mutation to RED TACACC TIG GC GACGACT A U GU G G A A C C G C UG CUGA MET -TRP- ASN - ARG- CYS - (STOP) Original DNA Sequence: MRNA Sequence: Amino Acid Sequence: Mutated TAC GÁC CTT GGC GAC GÁC T DNA mRNA Amino Acid Will this mutation have an effect? What kind of mutation is this? Mutation #3: • Change the Mutation to RED TACACCTT G G C G A C GACT AUGUG G A A C C G C U G C U G A MET -TRP- ASN - ARG- CYS - (STOP) Original DNA Sequence: mRNA Sequence: Amino Acid Sequence: Mutated TAC ACC TTA GCG ACG ACT DNA MRNA Amino Acid Will this mutation have an effect? What kind of mutation isarrow_forwardRemember when looking up a codon make sure it is in its mRNA form. Below is a sample of a segment of DNA…(copy from left to right) 3’ TACAATGGGCGACGCGCTTCGTTTCAGATT 5’ 5’ ATGTTACCCGCTGCGCGAAGCAAAGTCTAA 3’ What would be the problem if ATT was inserted into the DNA template strand after the second codon? (Be sure to consult the coding chart for amino acids). 2.What if the second amino acid was repeated over 5Ox. What amino acid is repeated? What type of mutation is this? If this is on chromosome 4, what genetic disorder is this? Often this type of mutation does show symptoms until middle age. What problem does this create? 3.What are three differences between a point mutation and deletion mutationarrow_forwardWHAT IF? In eukaryotic cells, mRNAs have been foundto have a circular arrangement in which proteins holdthe poly-A tail near the 5¿ cap. How might this increasetranslation efficiency?arrow_forward
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