Which statement is correct? Cells in the muscles have different structure and function than skin cells because they have different genes. O All cells have the same genes, but different genes are active in different cells O As cells differentiate, they lose the genes they do not need O All cells have the same genes and all genes are active in all cells

Which statement is correct? Cells in the muscles have different structure and function than skin cells because they have different genes. O All cells have the same genes, but different genes are active in different cells O As cells differentiate, they lose the genes they do not need O All cells have the same genes and all genes are active in all cells

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 5SQ

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What choice best descirbes how genes are used in different cell types in your body. An example of different cell types are muscle and brain cells. (level 2) All cells in the human body have the same genes and every cell uses every gene. All cells in the human body have the same genes but different cell types express (use) different genes. All cells have the same chromosomes but different cell types have different genes. coocific eate the cell in the middle In thic 6 stv MacBook Air DII 888 FS & % %23 8 9 з 4 5 R т Y U E G H K D C V command .. ** OOO
When the DNA of a human cell becomes damaged, the p53 geneis activated. What is the general function of the p53 protein?Is it an enzyme, transcription factor, cell-cycle protein, orsomething else? Describe three ways in which the synthesisof the p53 protein affects cellular function. Why is it beneficialfor these three things to happen when a cell’s DNA hasbeen damaged?
Skin cells and heart cells are so different because they O use different genetic codes. have different chromosomes. O have different genes. O express different subsets of genes. O have different promoter sequences.
Every cell contains all of the DNA for an organism. What controls when and how specific genes are expressed? Genes are not controlled, all genes are expressed all the time Gene expression is controlled by sequences in the DNA Gene expression is controlled by proteins Gene expression can be controlled by proteins and sequences in the DNA O 000
There are close to 200 different cell types in the human body. Why do they look and function differently from one another? O They each express a different set of genes O They each express all the same genes, but in a different order at different times O They each have slightly different genomes O They all express the same genes, but proteins that aren't needed in a particular cell type are degraded before they can function QUESTION 10 When you exercise, you typically start breathing harder. This is because: O You are switching from aerobic to anaerobic respiration O More oxygen is needed to meet the increased ATP demand O Carbon dioxide stores are quickly depleted during exercise Muscle cells can only use aerobic respiration
I am confused about how stem cell transplants works. If you put a semi differentiated tadpole nucleus in a denucleated egg cell, it’ll develop into a fully formed tadpole, but if you put a fully differentiated tadpole nucleus, it won’t (because the genes have already been expressed in a way where the cytoplasmic determinants cannot operate to the fullest). Then how come in stem cell transplants, you use adult nucleuses that are already developed and transplant them into the denucleated egg cells?
Gene expression is... O How genes are replicated into two new strands identical to each other O How genes are duplicated, forming a new gene O How genes are mutated, creating a new allele O How genes are transcribed and translated into protein
How does gene expression influence the behavior of cells that contain the same genome (genetic information)? In other words, why do cells that belong to the same multicellular organism have a different structure and function?
You decide to have your genome sequenced. The results come back and show that you have a loss-of-function mutation in a single copy of your p53 gene. Does this mean you are destined to get cancer? Yes, more than likely you will develop cancer. Not necessarily. You will only get cancer if the second copy of the gene also develops a loss-of-function mutation. Not necessarily. You will only get cancer if the second copy of the gene also develops a gain-of-function mutation. Not enough info to tell
Which of the following can occur when genes are not expressed properly? it can result in uncontrolled cell growth, forming tumors the DNA of the cell will be destroyed by RNA only the proteins needed by the specific cell are created genes will create carbohydrates instead of proteins
Why are cancers considered to be clonal in origin? OA. They are considered clonal in origin because they usually start out as a group of cells that undergoes mutation to lose control of cell division. OR They are considered clonal in origin because they have been important in the biotechnology industry for cloning genes. A They are considered clonal in origin because they usually are used in cloning experiments in laboratories that study cancer. OC. O D.hey are considered clonal in origin because they usually originate as a single cell that has acquired sufficient mutations to become cancerous. The description of "clonal" is actually a term coined by someone who really liked the Star Wars movies.
The rectangles under each cell type shows 4 different genes. If the gene is expressed (used) in that type of cell the box is blue. If that gene is not expressed (used) in that type of cell the box is unfilled. Cogethe M o e ware ducton or y Cell type Red blood Muscle Pancreatic Gene type Housekeeping Hemoglobin. Insulin Myosin You don't really need to know what the different genes do but here is that info anyway: Housekeeping genes- genes that allow the cell to do basic functions like cellular respiration. Hemoglobin- A protein that carries oxygen molecules Insulin- A protein that tells cells to absorb glucose from the blood Myosin- A protein that forms muscle fibers. Using this information answer both parts" Red blood cells and muscle cells look very different and have different functions, Using the information in the diagram about the different genes explain why red blood blood cells and muscles cells could be so different even though they have identical chromosomes. tv MacBook Air…