Campbell Biology Plus Masteringbiology
10th Edition
ISBN: 9780321775849
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 8TYU
Which of the following statements about the DNA in one of your brain cells is true?
(A) Most of the DNA codes for protein.
(B) The majority of genes are likely to be transcribed.
(C) It is the same as the DNA in one of your liver cells.
(D) Each gene lies immediately adjacent.to an enhancer.
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Which statement is false:
A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the length and amino acid sequence of its peptide
B) After the rpocess of transcription is complete, the mRNA that is produced will continue being tranlsated by ribosomes for the rest of the cells life. mRNA never breaks down
C) A ribosome will bind to an mRNA and will translate the sequence by reading one codon at a time and adding one amino acid to the peptide chain. It will stop the translation once it encounters a stop codon
D) The gene for a protein provides the information on the legth of the peptide, along w the amino acid sequence so the protein can be synthesized by a ribosome
E) Once mRNA has left the nucleus, ribosomes will bind to it and will follow the instructions in its sequence to make the new protien
Regarding transcriptional promoter sites, which of the following statements are true? Select one or more than one:
a)They are located in the gene (DNA) whose information will be transcribed
b)They are found at the 3 'end of the gene that will be transcribed
c)Some of them are called 'TATA box'
d)They are found in the DNA, 'upstream' of the gene to be transcribed.
e)They are proteins of the cytoplasm
Transcription and translation are separate processes in gene expression; however, they have similarities. The following terms all relate to translation. Which of these has a role that is most similar to that of the transcription start site during transcription?
A)Start codon
B)Stop codon
C)tRNA
D)Amino acid
Chapter 18 Solutions
Campbell Biology Plus Masteringbiology
Ch. 18.1 - How does binding of the trp corepressor to the trp...Ch. 18.1 - Describe the binding of RNA Polymerase,...Ch. 18.1 - WHAT IF? A certain mutation in E. coli changes...Ch. 18.2 - In general, what are the effects of histone...Ch. 18.2 - Compare the roles of general and specific...Ch. 18.2 - WHAT IF? Suppose you compared the nucleotide...Ch. 18.2 - Once mRNA encoding a particular protein reaches...Ch. 18.3 - Compare miRNAs and siRNAs, including their...Ch. 18.3 - WH AT IF? Suppose the mRNA being degraded in...Ch. 18.4 - MAKE CONNECTIONS As you learned in Chapter 12,...
Ch. 18.4 - MAKE CONNECTIONS Explain how the signaling...Ch. 18.4 - How do fruit fly maternal effect genes determine...Ch. 18.4 - Prob. 4CCCh. 18.5 - MAKE CONNECTIONS The p53 protein can activate...Ch. 18.5 - Under what circumstances is cancer considered to...Ch. 18.5 - Prob. 3CCCh. 18 - Compare and contrast the roles of a corepressor...Ch. 18 - Describe what must happen in a cell for a gene...Ch. 18 - Why are miRNAs called noncoding RNAs? Explsin how...Ch. 18 - Describe the two main processes that cause...Ch. 18 - Compare the usual functions of proteins encoded by...Ch. 18 - If a particular operon encodes enzymes for making...Ch. 18 - Muscle cells differ from nerve cells mainly...Ch. 18 - The functioning of enhancers is an example of (A)...Ch. 18 - Cell differentiation always involves (A)...Ch. 18 - Which of the following is an example of...Ch. 18 - What would occur if the repressor of an inducible...Ch. 18 - Absence of bicoid in mRNA from a Drosophila egg...Ch. 18 - Which of the following statements about the DNA in...Ch. 18 - Within a cell, the amount of protein made using a...Ch. 18 - Prob. 10TYUCh. 18 - Prob. 11TYUCh. 18 - Prob. 12TYUCh. 18 - Prob. 13TYUCh. 18 - Prob. 14TYUCh. 18 - WRITE ABOUT A THEME: INTERACTIONS In a Short essay...Ch. 18 - SYNTHESIZE YOUR KNOWLEDGE The flashlight fish has...
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- When regulatory protein binds to a mature mRNA in the cytoplasm and prevents it from binding to a ribosome, this is an example of: A) transcriptional control B) post-transcriptional control C) post-translational control D) epigenetic control E) translational controlarrow_forwardGene Expression: 14) Look at the diagram: a) For each of the molecules in the diagram, identify what type of molecule they are, and label their ends (3',5',N,C). b) For each arrow, name the process and identify the major enzymes involved. c) Where do each of these activities take place in a bacterial cell? In a eukaryotic cell? Draw a picture if it helps you explain it.arrow_forwardIn your own words, explain epigenetics. What is it? What are the main epigenetic marks? What do they do in terms of gene transcription? What are the enzymes involved?arrow_forward
- #12 & #13 I will give you ? thank youarrow_forwardIn eukaryotic cells, alternative splicing of the pre-mRNA (primary transcript) to form different mature mRNAs is an example of _________________ regulation. A) transcriptional B)post-transcriptional C) translational D) post-translationalarrow_forwardDuring human development, the process by which an embryonic cell experiences changes in gene expression to become more specialized in order to be a functioning pancreas cell (such as the ones that secrete insulin!) is called _____. a) alternative splicing b) cell differentiation c) cell expression d) translation e) intrinsic repressionarrow_forward
- If a gene sequence is more tightly coiled around histones, then which of the following is the most likely consequence? A) This gene is more likely to undergo mutation as it is being expressed B) This gene is unlikely to be transcribed while in this conformation C) This gene will be transcribed often while in this conformation D) This gene will be translated more efficiently .arrow_forwardWhich is the expected outcome following the deacetylation of histones? a) Coiling of chromatin, preventing it from being accessed by transcriptional machinery b) Coiling of chromatin, allowing it to be accessed by transcriptional machinery c) Uncoiling of chromatin, preventing it from being accessed by transcriptional machinery d) Uncoiling of chromatin, allowing it to be accessed by transcriptional machineryarrow_forwardHydrogen bonds are important in DNA replication and transcription. They are relatively weak chemical bonds. Why is this a desirable feature for DNA? Describe the effect (s) of changing (mutating) the promoter on the transcription of the DNA strand/gene the promoter controls. What happens to protein synthesis if a nonsense codon is inserted into the gene? Explain why a point mutation does not necessarily change the original amino acid sequence. (Explain silent mutations) Choose any pentapeptide composed of five different amino acids. List the amino acids. Present one messenger RNA codon for each amino acids and the sequence of nucleotides on the DNA that originally coded for your pentapeptide.arrow_forward
- A regulatory region shows all of the following properties except a) can be located in an exon. b) can be located at a distance from the gene. c) acts as a binding site for transcription factors. d) acts as a binding site for a polymerase.arrow_forwardQ11arrow_forwardThe complete set of RNA transcripts present in a cell under various conditions is called the: a) genome b) proteome c) transcriptome d) none of the abovearrow_forward
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