Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10, Problem 4CT
The photos below show flowers from two Arabidopsis plants. The plant on the left is wild-type (unmutated); the other carries a mutation that causes its flowers to have sepals and petals instead of stamens and carpels. The mutation inactivated one of the plant's ABC floral identity genes. Refer to Figure 10.8 and decide which gene (A, B, or C) has been inactivated.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
the photos below show flowers from two Arabidopsisplants. The plant on the left is wild-type (unmutated); theother carries a mutation that causes its flowers to havesepals and petals instead of stamens and carpels. Themutation inactivated one of the plant's ABC floral identity genes. Refer to Figure 10.8 and decide which gene(A, B, or C) has been inactivated
In the early 1990s, Carolyn Napoli and her colleagues were working on petunias, attempting to genetically engineer a variety with dark purple petals by introducing numerous copies of a gene that encodes purple pigment in the flower petals . Their thinking was that extra copies of the gene would cause more purple pigment to be produced and would result in a petunia with an even darker hue of purple. However, much to their surprise, many of the plants carrying extra copies of the purple gene were completely white or had only patches of color. Molecular analysis revealed that the amount of mRNA produced by the purple gene was reduced 50-fold in the engineered plants compared with wild-type plants. Somehow, the introduction of extra copies of the purple gene silenced both the introduced copies and the plant’s own purple genes. Provide a possible explanation for how the introduction of numerous copies of the purple gene silenced all copies of the purple gene.
Which of the following BEST states genome editing in plants?
A. transform large DNA constructs by suppression and activation
B. insert a functional cis-regulatory element in the natural genes transgene vector
C. assemble and synthesize large DNA molecules in a single transgene vector
D. deletion, mutation, or integration of the gene of interest depending on the target trait
Chapter 10 Solutions
Biology: The Unity and Diversity of Life
Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Effect of Paternal Grandmother's Food Supply on...Ch. 10 - Gene expression does not vary by ___ . a. cell...Ch. 10 - Binding or ___ to ___ in DNA can increase the rate...Ch. 10 - Muscle cells differ from bone cells because they...Ch. 10 - Prob. 4SQCh. 10 - Mechanisms that govern gene expression do not...Ch. 10 - Prob. 6SQCh. 10 - Prob. 7SQ
Ch. 10 - Prob. 8SQCh. 10 - Which of the following includes all of the others?...Ch. 10 - Prob. 10SQCh. 10 - Prob. 11SQCh. 10 - A cell with a Barr body is ___ . a. a bacterium b....Ch. 10 - Prob. 13SQCh. 10 - Which of the following statements is incorrect? a....Ch. 10 - Prob. 15SQCh. 10 - Explain why somebut not allof an organism's genes...Ch. 10 - Do the same mechanisms that govern gene expression...Ch. 10 - Prob. 3CTCh. 10 - The photos below show flowers from two Arabidopsis...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Why do scientists think that all forms of life on earth have a common origin?
Genetics: From Genes to Genomes, 5th edition
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (9th Edition)
Figure 1.18 In the example below, the scientific method is used to solve an everyday problem. Which part in the...
Concepts of Biology
Some people compare DNA to a blueprint stored in the office of a construction company. Explain how this analogy...
Biology: Concepts and Investigations
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (10th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The photos above show flowers from Arabidopsis plants. One plant is wild-type (unmutated); the other carries a mutation in one of its ABC floral identity genes. This mutation causes sepals and petals to form instead of stamens and carpels. Refer to Figure 10.8 to decide which gene (A, B, or C) has been inactivated by the mutation.arrow_forwardGolden rice is a genetically modified crop plant where the incorporated gene is meant for what?arrow_forwardHow can mutations cause changes to the traits? Explain using the following steps:1- DNA 2- Gene 3- Protein 4- Traits We need one explanation for the normal side and one for the mutation side. Can you explain in a few sentences how the change in the structure of the gene affects the function of the corn plant?arrow_forward
- Which of the following is false regarding corn plants that were genetically modified to produce the Cry protein? Group of answer choices You would need to add a corn enhancer to the Ti plasmid Reverse transcription of the Cry mRNA is not needed, as corn plants are eukaryotes The gene necessary for Cry protein synthesis is present in all cells of the corn plant, however, it is not expressed in the endosperm You would need to remove tumor inducing genes from the Ti plasmid You would need to add a eukaryotic promoter, active in corn, to the Ti plasmidarrow_forwardIn roses, the synthesis of red pigment is by two steps ina pathway, as follows:colorless intermediate gene Pmagenta intermediate red pigment gene Qa. What would the phenotype be of a plant homozygousfor a null mutation of gene P?b. What would the phenotype be of a plant homozygousfor a null mutation of gene Q?c. What would the phenotype be of a plant homozygousfor null mutations of genes P and Q?d. Write the genotypes of the three strains in parts a, b,and c.e. What F2 ratio is expected from crossing plants fromparts a and b? (Assume independent assortment.)arrow_forwardLeaf color in plants is due to the chloroplasts and the amount of chlorophyll they contain. The color is ultimately determined from the ____. Organelles within the egg Organelles within the pollen Genes received from the egg Genes received from the pollenarrow_forward
- Boll weevil is a serious pest of cotton crop. Effective control involves applications of chemical insecticides, increasing the cost of production and environmental pollution. The current genetically modified Bt crops have allowed great benefits to farmers but show activity limited to lepidopteran pests. This work reports on procedures adopted for integration and expression of a cry transgene conferring resistance to boll weevil and fall armyworm by using molecular tools. Four Brazilian cotton cultivars were microinjected with a minimal linear cassette generating 1248 putative lines. Complete gene integration was found in only one line (TO-34) containing one copy of crylla detected by Southern blot. Protein was expressed in high concentration at 45 davs after emergence (dae), decreasing by approximately 50% at 90 dae. Toxicity of the cry protein was demonstrated in feeding bioassays revealing 56.7% mortality to boll weevil fed buds and 88.1% mortality to fall armyworm fed leaves. A…arrow_forwardHere are schematic diagrams of mutant Drosophila larvae. The left side of each pair shows a wild-type larva, with gray boxes showing the sections that are missing in the mutant larva. Which type of gene is defective in each larva: a gap gene, a pair-rule gene, or a segment-polarity gene?arrow_forwardImagine that you are researcher trying to identify genes that were involved in the domestication of tomatoes. You collect the following data: Gene W variants Gene X variants Gene Y variants Gene Z variants Domestic Tomatoes W1, W3 X2, X3, X5 Y4 Z1, Z3, Z5, Z6 Wild Tomatoes W1, W2, W3 X1, X2, X3, X4, X5 Y1, Y2, Y3, Y4, Y5, Y6, Y7 Z1, Z2, Z3, Z4, Z5, Z6 Which gene was most likely a target of selection during domestication? W Y Z Xarrow_forward
- Which type of mutation is simulated in the following example? Wild type: THE ONE BIG FLY HAD ONE RED EYE Mutant: THE ONE BUG FLY HAD ONE RED EYEarrow_forwardA mutation that breaks which of the following genes would be most likely to produce theanthocyanless phenotype of the green-stem Wisconsin Fast Plants (meaning no purple stems):PAL, CHS, C3H, FLS, or DFR? Explain your reasoning.arrow_forwardConsider the following hypothetical gene a plant g&T produces a protein that impacts the stem length. There are two alleles for GT which produces long stem and tea little tea which results in short stint. Which of the following genome types above would have a different pheno type? And what would the phenotype be for the genotype?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY