EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 19, Problem 5TY
Summary Introduction
Introduction: Regulation of the processes of the cell is carried out by many different molecules. Regulation of transcription is the reason why certain cells express proteins which other cells do not despite the fact that they have the same genetic material. Regulation is also important as it is important that transcription of a gene gives rise to the correct protein that it encodes for.
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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
What strategy does a genetically encoded calcium indicator look like to allow fluorescence imaging of only one cell type in an acute slice of the brain?
A.The use of fluorescent protein expression inhibitors in other cells
B.The injection of a recombinant virus causing the death of other cells
C.The use of a promoter specific to these cells
D.Activation of membrane receptors specific to these cells
What is an induced pluripotent stem cell? a. A cell from which the nucleus has been removed b. A cell extracted from an early embryo c. A specially treated somatic cell that can develop into any cell type d. A specially treated embryonic stem cell that develops into one specialized cell type
Chapter 19 Solutions
EBK BIOLOGY
Ch. 19.1 - 20.1 General Themes in Development Concept Check:...Ch. 19.1 - Prob. 1BCCh. 19.1 - Prob. 2CCCh. 19.1 - Prob. 3CCCh. 19.1 - Prob. 2BCCh. 19.1 - Prob. 4CCCh. 19.2 - Development in Animals I: Pattern Formation...Ch. 19.2 - Development in Animals I: Pattern Formation...Ch. 19.2 - Prob. 3CCCh. 19.2 - Prob. 4CC
Ch. 19.2 - Development in Animals I: Pattern Formation Core...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.2 - Development in Animals II: Cell Differentiation...Ch. 19.3 - Development in Plants Concept Check: Where are...Ch. 19.3 - Prob. 2CCCh. 19 - The process whereby a cells morphology and...Ch. 19 - Prob. 2TYCh. 19 - Positional information is important in determining...Ch. 19 - Morphogens are a. molecules that disrupt normal...Ch. 19 - Prob. 5TYCh. 19 - Arrange the following phases of pattern formation...Ch. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - An embryonic stem cell that can give rise to any...Ch. 19 - Prob. 10TYCh. 19 - Prob. 1CQCh. 19 - The MyoD gene in mammals plays a role in muscle...Ch. 19 - Prob. 3CQCh. 19 - Prob. 1COQCh. 19 - Is it possible for a phenotypically normal female...
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- In prokaryotic cells, mRNA is translated as soon as it is transcribed because prokaryotes have... A. No nuclear membranes B. Fewer genes than eukaryotes C. Genes contained in plasmids D. A and Barrow_forwardWhat might best explain why the incidence of cancer increases as people age? Select one: a. mutations accumulate as people age b. cell division increases as people age c. protein synthesis increases as people age d. telomerase activity increases as people age e. ATP production increases as people agearrow_forwardWith regard to human cancer cells, which of the following statements is true? A. Cancer cells within one tumor usually do not share common mutations B. Cancer cells generally have lost the ability to divide C. Oncogenes are non-human genes not related to normal genes in the human genome D. Mutations in DNA repair genes result in an increased chance of getting cancer.arrow_forward
- Which of these is NOT true of nucleosomes? A. Some post-translational modifications to histone proteins serve as binding sites for transcription factors. B. The position of nucleosomes is fixed on the genome and can not be changed. C. The position and post-translational modifications of histones can be inherited through mitosis. D. The binding between DNA and histone proteins can be disrupted by post-translational modifications.arrow_forwardIn a fly egg, the nurse cells are killed before they can produce bicoid mRNA. What will happen? Group of answer choices A. The larva will develop normally B. The resulting larva will have no head and two tail ends C. The resulting larva will have two heads D. The resulting fly will have legs growing out of its headarrow_forwardSelect the most complete list of correct structures involved in the process of transcription a. mRNA, amino acids, ribosomes, polypeptide chains b. DNA, mRNA, RNA polymerase, a promoter c. mRNA, polypeptide chains, RNA polymerase d. DNA, mRNA, amino acidsarrow_forward
- What determines which transcription factors will be able to regulate a particular gene's expression? A. The collection of control element sequences that are associated with that gene B. The location of that gene sequence (which chromosome it is located on) C. The sequence of introns present in that gene D. The sequence of exons present in that gene ..arrow_forwardHuman growth hormone is being researched as a potential anti-aging drug. What is the most likely way that would scientists produce large amounts of growth hormone? O a. Use transcription factors to increase the rate of transcription of the relevant gene in humans Use the human growth hormone to develop an aging vaccine Use restriction enzymes to isolate the relevant gene and allow it to replicate in all types of cells O b. O c. O d. Transfer the relevant gene to a bacterial cell and culture large colonies then purify the product Oarrow_forwardHow does an embryonic stem cell differ from an adult stem cell? A. Embryonic stem cells are able to differentiate into many different types of cell. B. Adult stem cells are able to differentiate into other fully developed cells. C. Embryonic stem cells do not require nuclear transfer for cloning. D. Embryonic stem cells are more likely to uptake the plasmids required for iPSCs.arrow_forward
- The process involving signals being sent between a cell interacting with one or more cells close by, to change the fate of the cell, or help in determining its final form is called A. activation B. Morphogenesis C. Induction D. repressorsarrow_forwardWhich 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 synthesisarrow_forwardIf eukaryotes have monocistronic genes, why is the number of known proteins more than the number of known genes? A. Post-translational modification B. Alternative splicing C. Base substitution D. Post-transcriptional modificationarrow_forward
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