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

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

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 4CT: The photos below show flowers from two Arabidopsis plants. One plant is wild-type unmutated; the...

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A paper hypothesizes that white flowers are unable to produce anthocyanins (purple pigments) because they lack a functional “A” protein. However, it is also possible that an unknown gene is responsible for the lack of anthocyanins. Now that they have isolated DNA sequences of the “A” allele, design an experiment to use these DNA sequences to distinguish between these two hypotheses.
After much work the researcher maps the mutation in the mut1 plant to a locus on chromosome 2. The gene associated with the mut1 mutation is called COB1 (i.e. mutations in COB1 cause the mut1 phenotype.) The researcher extracts DNA and RNA from developing ears of wild type, mut1 and mut2 plants. From the DNA samples COB1 PCR primers are used to amplify the coding region of the COB1 gene (see DNA gel below). An RNA gel is used to examine the expression of COB1 all three plants (see RNA gel below). results in photo: Which of the following is TRUE about the COB1 gene. a. There is a deletion in the COB1 gene in the mut1 plants. b. COB1 is not transcribed in the mut2 plant. c. There is a deletion in the COB1 gene in the mut2 plants. d. COB1 is not transcribed in the mut1 plant.
What is mutation? Explain the significance of mutation in plant breeding. Give an example of a disease resistant variety of cultivated plant induced by mutation.
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