Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 10, Problem 5SQ
Summary Introduction
Introduction: Genes are the fundamental unit of heredity which is composed of DNA. Each gene specifies a particular protein. For this, the genes will be converted into a useful product through the process of gene expression. Gene expression involves the conversion of DNA into RNA through the process of transcription and this RNA will be converted into proteins through the process of translation.
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Students have asked these similar questions
Which of the following is true of transcription factors?
A)The same transcription factors are found in all cell types.
B)They can increase or decrease gene expression.
C)They are a type of cis-acting element.
D)They bind only to promoters.
A mutation that changes the sequence of nucleotides in a promoter would result in a change in
a.
The amino acid sequence of the corresponding protein
b.
The base sequence of the corresponding mRNA
c.
How frequently the corresponding gene is transcribed
d.
The fidelity of translation of the corresponding mRNA
1 points
If a mutation deletes the start codon in a eukrayotic gene, which of the following most accurately describes its consequence?
A.
There will be no mRNA or polypeptide made.
B.
The mRNA will be made but no polypeptide is made.
C.
The mRNA will not be processed properly.
D.
Nothing will happen. It is a silent mutation.
Chapter 10 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 10 - The expression of a gene may depend on _______. a....Ch. 10 - Prob. 2SQCh. 10 - Binding of ______ to _______ in DNA can increase...Ch. 10 - Prob. 4SQCh. 10 - Prob. 5SQCh. 10 - Muscle cells differ from bone cells because...Ch. 10 - Prob. 7SQCh. 10 - Homeotic gene products _______. a. flank a...Ch. 10 - A gene that is knocked out is ________. a. deleted...Ch. 10 - Which of the following includes all of the others?...
Ch. 10 - Prob. 11SQCh. 10 - Effect of Paternal Grandmothers Food Supply on...Ch. 10 - Prob. 2DAACh. 10 - Effect of Paternal Grandmothers Food Supply on...Ch. 10 - Prob. 12SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Operons _____. a. only occur in bacteria b. have...Ch. 10 - Prob. 15SQCh. 10 - Why are some genes expressed and some not?Ch. 10 - Prob. 2CTCh. 10 - Almost all calico cats (one is pictured in FIGURE...Ch. 10 - The photos above show flowers from Arabidopsis...
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- To facilitate movement of mRNA from the nucleus into the cytoplasm, what is added to the 3’ end of mRNA? a) Ribosomes b)Transcription factors c) A cap of modified nucleotides d) Modified tRNA molecules e) A Poly-a-tailarrow_forwardWhen would a ribosome bind to a promoter sequence? A) It wouldn't. A promoter is a DNA sequence, and ribosomes don't bind to DNA. B) When the ribosome needs to transcribe the gene that that promoter controls. C) When the ribosome is translating the DNA sequence of a gene. D) When there is a start codon (AUG) in the promoter sequence. .arrow_forwardWhich of the following best represents the central dogma of geneexpression?a. During transcription, DNA codes for polypeptides.b. During transcription, DNA codes for mRNA, which codes forpolypeptides during translation.c. During translation, DNA codes for mRNA, which codes forpolypeptides during transcription.d. none of the abovearrow_forward
- a piece of DNA is produced with 1) an enhancer from a gene expressed in the liver, 2) a promoter from a gene expressed in bone cells, and 3) exons and introns from a gene expressed in the brain introduction of this gene into a mouse then results in high levels of A) a brain protein in the liver B) a bone protein in the brain C) a brain protein in the bone D) a liver protein in the brain E) no protein would be madearrow_forwardBelow is a graphical representation of eukaryotic precursor mRNA. A. Outline each modification that must happen to get a mature m-RNA. B. How does the absence of introns in prokaryotic genes affect prokaryotic gene expression? C. How will gene expression be affected if all of the spliceosomes are removed from the bacteria sample? Explain.arrow_forwardThe Kozak rules determine a. the choice of the start codon in complex eukaryotes. b. the choice of the start codon in bacteria. c. the site in the mRNA where translation ends. d. how fast the mRNA is translated.arrow_forward
- Which of the following is characteristic of genes and gene regulation in both bacteria and eukaryotes? (a) promoters (b) non-coding DNA within coding sequences (c) enhancers (d) operons (e) DNA located in a nucleusarrow_forwardWhich of the following DNA elements or proteins would you expect to find only in some cells in a organism? A. The enhancer for gene Y B. The transcription factor that activates gene Y C. A general transcription factor protein D. A and B E. The promoter for gene Yarrow_forwardIf 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_forward
- Which of the following are possible reasons that a cell would regulate its expression of a gene? (Select all that apply.) (a) an increased need for a particular enzyme (b) a decreased need for a particular enzyme (c) increasing temperature in the external environment (d) changing needs as an organism ages (e) deatharrow_forwardPost-translational modifications of proteins can affect which of the following? a. protein function b. transcriptional regulation c. chromatin modification d. all of the abovearrow_forwardMissense mutations a create premature stop codons b cause no change in a gene product c change the amino acid sequence of a polypeptide d none of the abovearrow_forward
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