Campbell Essential Biology (6th Edition) - standalone book
6th Edition
ISBN: 9780133917789
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 11, Problem 12SQ
Summary Introduction
To determine:
The name of such genes that produces a wing or leg in fruit fly and produces a big change if one gene is changed.
Introduction:
Homeotic genes are regulatory genes that determine where certain anatomical structures, such as leg or wing will develop in an organism during morphogenesis. These are the master gene of development and can act as switches for other genes.
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which of the following statements accurately describes genetic mutations
If you have a mutation in your skin cells from falling asleep in a tanning bed, how will this affect your offspring?
Question 10 options:
It will affect their entire body because their entire body grew out of the fertilized egg
It may affect them, depending on whether those particular skin cells are passed on to them
It will affect your offspring's skin cells only
It won't affect them because the mutation is not in a gamete
It won't affect them because mutations cannot be passed down to offspring
Mutations in DNA may or may not result in a change in the phenotype of an organism. In which of the following situations will a mutation appear in the phenotype of an individual?
The mutation occurs in an organism which is past reproductive age
The genetic code for protein synthesis has not been altered in a gamete producing cell
The mutation occurs in a body cell of the organism, resulting in cancer
O The mutation results in a change in the amino acid sequence of the protein in a gamete producing cell
Chapter 11 Solutions
Campbell Essential Biology (6th Edition) - standalone book
Ch. 11 - Your bore cells, muscle cells, and skin cells look...Ch. 11 - A group of prokaryotic genes with related...Ch. 11 - The regulation of gene expression must be more...Ch. 11 - A eukaryotic gene was inserted into the DNA of a...Ch. 11 - How does DNA packing in chromosomes prevent gene...Ch. 11 - What evidence demonstrates that differentiated...Ch. 11 - The most common procedure for cloning an animal is...Ch. 11 - Prob. 8SQCh. 11 - Prob. 9SQCh. 11 - Prob. 10SQ
Ch. 11 - What is the difference between oncogenes and...Ch. 11 - Prob. 12SQCh. 11 - Prob. 13PSCh. 11 - The human body has a far greater variety of...Ch. 11 - Because a cat must have both orange and non-orange...Ch. 11 - Design a DNA microarray experiment that measures...Ch. 11 - Prob. 17PSCh. 11 - Prob. 18BSCh. 11 - Prob. 19BS
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- Scientists look at thousands of mutagenized flies, one at a time, under a microscope. They are looking for flies that don't look like they have developed normally. They find a remarkable fly with an extra thorax and a complete extra set of wings. This is an example of: A crazy waste of time A forward genetic screen A reverse genetic screenarrow_forwardImagine you took a protein coding sequence of DNA (a gene) from a pig, and added that sequence of DNA to a fruit fly. What would the resulting protein be like? The gene could be expressed, but it would be the fly version of the same gene The protein would be identical to the pig version of the protein The protein would be a mutated version of the pig protein No protein could be produced because of the difference in speciesarrow_forwardYou are working in a lab that studies stickleback fish. These fish normally have three spines that occur on the back of the stickleback. One day you notice that a young stickleback has no spines on its back but instead has three spines growing out of the top of its head! Question: Briefly explain a study you could do to test if the difference between the mutant and wild type fish was due to a difference in the structural gene that makes the spines or due to a difference in gene expression.arrow_forward
- 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 000arrow_forwardWhat type of mutation is this? 1. Which type of mutation is responsible for new varia tions of a trait? Which type of mutation does not result in an abnormal amino acid sequece? Which type of mutation stops the translation of an mRNA molecule? 2. Sickle Cell Anemia Sickle cell anemia is the result of a type of mutation in the gene that codes for part of the hemoglobin molecule Hemoglobin carries oxygen in your red bloods cells. The mutation causes these red blood cells to become stife sickle-shaped when they release their oxygen. The sickled cells tend to get stuck in blood vessels, causing poin ond increased risk of stroke, blindness, damage to the heart & lungs, and other conditions. Analyze the DNA strands below to determine what amino acid is changed AND what type of mutation occurred Normal hemoglobin DNA A G TC Normal hemoglobin mRNA val• Hisolelo thr•proo Gll Normal hemoglobin AA sequence CA cGT AG A CTGAGG AC AC Sickle cell hemoglobin DNA Sickle cell hemoglobin mRNA Sickle cell…arrow_forwardWhat is the last name of the scientist who discovered that x-rays can increase the rate of mutation in fruit flies?arrow_forward
- You have received an opportunity to work with a professor. He wants you to induce a tumor in a model organism to study its effect. What model organism will you choose to study? Drosophila melanogaster Mus musculus Caenorhabditis elegans Cercopithecidaearrow_forwardOne unexpected result of the sequencing of the human genome was the finding that mutations in a single gene can be responsible for multiple distinct disorders. For example, mutations in the RET gene can cause two different types of multiple endocrine neoplasias, familial medullary thyroid carcinoma, and Hirschsprung disease. How do you think mutations in a single gene can have such diverse effects?arrow_forwardWhich of the following is NOT true about the agouti gene? -methylated gene results in a brown coat -different amount of methylation result in different fur pigmentation -diet supplement can influence methylation -the gene can be methylated and unmethylated during an individual's lifearrow_forward
- What is Gene translocation? Would a mutation in one of your muscle cells affect your offspring? Why or whynot? What 3 things can individuals do to protect themselves from developing mutations? PUT YOUR ANSWERS IN BOLDarrow_forwardIn many organisms, the sex of the organism is determined by its genețic code. In most mammals, including humans, the sex of the organism is determined by genes that fall on specific chromosomes called the X and Y chromosomes. Most mammals have two sex chromosomes. A mammal cell with two X chromosomes is from a organism and a mammal cell with one X and one Y chromosome is from a organism. In humans, the SRY gene is responsible for in cells. This gene occurs onarrow_forwardWhich 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 proteinsarrow_forward
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY