Which of the following is not an example of constitutively expressed gene? a. genes for cell division and growth b. genes involved in DNA repair c. genes for cellular respiration d. genes that function in ATP synthesis

Which of the following is not an example of constitutively expressed gene? a. genes for cell division and growth b. genes involved in DNA repair c. genes for cellular respiration d. genes that function in ATP synthesis

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Description: Which of the following is not an example of constitutively expressed gene?a. genes for cell division and growthb. genes involved in DNA repairc. genes for cellular respirationd. genes that function in ATP synthesis

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 10RQ: Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional...

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How does gene activation lead to cell differentiation? Explain the correct answer and explain why the others are wrong. A. Different genes are activated in different cells, causing each cell to have a unique funcation B. The same genes are actives in every cell of your body, causing every cell to function the same C. Certain cells only have parts of DNA that causes cell deferentiation D. Unique genes are in different cells, causing each cell to have a unique function
If a cell's DNA was mutated such that it lost the promoter of a gene, you would expect: a. That ribosomes wouldn’t bind to that gene b. No effect since the promoter doesn't have any coding information for the amino acids in the polypeptide c. Ribosomes would never stop translating that gene d. Transcription factors for that gene would no longer bind to activate expression of that gene e. tRNA would no longer bind to the codons of that gene
Transcription factors such as myoD control gene expression in which of the following ways? Group of answer choices A. direct control of transcription of specific genes B. control of the cell cycle C. general control of transcription through chromatin modification D. control of RNA splicing E. control of translation
A signaling pathway causes a transcription factor binding to a particular promoter. What effect does this have on the cell? O A. The DNA region near the promoter becomes more methylated. O B. The DNA region near the promoter becomes less methylated. O C. The gene related to this promoter has increased transcription. D. The gene related to this promoter has decreased transcription. red MacBook Air 吕口 F3 D00 F4 F6 F7 F8 88 # $ % & * 2 3 4 6 7 8
Two cells use the same segment of DNA to produce two different proteins. The mRNA transcribed by cell A contains more introns than does the mRNA produced by cell B. Which of the following is true about the proteins of these cells? O A The protein for cell A is longer. O B. The protein for cell A is shorter. O C. Cell A produces more of this protein. O D. Cell A produces less of this protein. mswered MacBook Air F3 F4 F7 F9 @ # $ % & * 2 5 6 7 W E R S D H K
Transcription factors such as myoD control gene expression in which of the following ways? Group of answer choices ONLY ONE RIGHT ANSWERZ: A. direct control of transcription of specific genes B. control of the cell cycle C. general control of transcription through chromatin modification D. control of RNA splicing E. control of translation
What does this expression mean? DNA → RNA→ Protein A DNA first turns into RNA; then the RNA turns into a protein. B The information in a DNA molecule is used to make an RNA molecule; then the information in the RNA is used to build a protein. C A cell passes through a phase where it has only DNA, then only RNA, then only protein.
Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional level b. epigenetic and transcriptional levels c. epigenetic, transcriptional, and translational levels d. epigenetic, transcriptional, post-transcriptional, translational, and post-translational levels
Predict the effects of the following mutations on the ability of a cell to undergo apoptosis:a. Mutation in Bad such that it cannot be phosphorylated by protein kinase B (PKB)b. Overexpression of Bcl-2c. Mutation in Bax such that it cannot form homodimersOne common characteristic of cancer cells is a loss of function in the apoptotic pathway. Which of the mutations listed above might you expect to find in some cancer cells?
How would each of the following types of mutations affect proteinfunction or the amount of functional protein that is expressed froma gene?A. Nonsense mutationB. Missense mutationC. Up promoter mutationD. Mutation that affects splicing
Which of the following is NOT a mechanism of control of gene expression Group of answer choices a. Co-dominance b. mRNA transport c. DNA Methylation d. Control of translation e. Control of transcription