Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 19.3, Problem 2R
Summary Introduction
To review:
The type of homeotic mutation that would be required in the genome of the rose plant so that it bears only petals.
Introduction:
Homeotic mutation has led to the emergence of on type of organ on the place of the other organ in an organism. It is caused due to the gain of function type of mutations. The promoter of one gene is artificially kept with the other gene for this mutation to take place.
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Students have asked these similar questions
You are a developmental geneticist studying flowering time variation in Arabidopsis. You perform a
mutagenesis screen to identify mutants in the photoperiod pathway. You conduct the screen and
find two different plants that show the same mutant phenotype. You then use a complementation
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recover the wild type phenotype
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Would you simply answer the question for me, i saw many answers for it
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The flower color of genetically identical hemp plants (clones) is purple
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gene O
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gene P
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What would the phenotype be of a plant homozygous for a null mutation of gene P?
What would the phenotype be of a plant homozygous for a null mutation of gene Q?
What would the phenotype be of a plant homozygous for null mutations of genes P and Q?
magenta
red
Match a genotype to each strain.
colorless
Strain
P locus Q locus
homozygous null mutation of gene P
homozygous null mutation of gene Q
homozygous null mutations of genes P and Q
Answer Bank
plp
PIP
What F2 ratio is expected from crossing a plant that is homozygous for a null mutation of gene P with a plant that is
homozygous for a null mutation of gene Q? Assume independent assortment.
9 colorless : 4 magenta : 3 red
9 red : 4 colorless : 3 magenta
O 9 red : 4 magenta : 3 colorless
Chapter 19 Solutions
Life: The Science of Biology
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