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In morning glory flowers, plants with red flowers can be homozygous RR or heterozygous Rr. Plants...

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Question

Biology

In morning glory flowers, plants with red flowers can behomozygous RR or heterozygous Rr. Plants that arerr have white flowers. How can you determine the genotypeof a plant that has red flowers?

Multiple Choice

A. Cross the red plant with another red plant, and then crossthe F1 population with each other to see if any whiteplants appear.

B. The phenotype reflects the genotype, so the plant must behomozygous for the trait.

C. Cross the red plant with a white plant to see how many redplants appear.

D. Cross the red plant with a white plant to see if any whiteplants appear.

E. Cross the red plant with another red plant to see if anywhite plants appear.

Answer & Explanation Solved by verified expert
3.9 Ratings (617 Votes)
ANSWER Basically the preference would be a test cross But for carrying out a test cross there would be two different phenotypic ratios observed which reflects the different genotypes Lets consider a cross between a red plant and a white    See Answer
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