Concept explainers
(a)
To determine:
(a) All the possible genotype of mystery pea plant. (b) The cross that can be done to determine the exact genotype.(c) The way in which prediction can be done for the possible genotype and why that method is not called performing a cross. (d) The way in which the result of the cross and the prediction will help in determining the genotype of the mystery plant.
Introduction:
Genotype is the genetic makeup of an organism based on single or multiple traits. It helps in deciphering the type of progeny that would be observed in the future generations. The genotype determines the
To determine: All the possible genotype of a mystery pea plant.
(b)
To determine:
The cross that can be done to determine the exact genotype.
(c)
To determine:
The way in which prediction can be done for the possible genotype and why that method is not called “performing a cross”.
(d)
To determine:
The way in which the result of the cross and the prediction will help in determining the genotype of the mystery plant.
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Campbell Biology in Focus (2nd Edition)
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- Kernel color in wheat Red kernel color in wheat results from the interaction between two dominant alleles. With only one dominant allele, the phenotype is brown while in the absence of any dominant allele, the phenotype is white. Suppose that plants of a variety that is true breeding for red kernels are crossed with plants true breeding for white kernels. What specific type of interaction can be observed? A. duplicate dominant genes B. duplicate genes with cumulative effects C. complementary genes D. dominant epistasis (case 2)arrow_forwardplease helparrow_forwardPlease solve and explain how you got to the answerarrow_forward
- D In fava bean plant the seed color can be coded by two alleles, green (G) which is dominant and purple (g) which is recessive. A gardening hobbyist performed a cross between 2 true-breeding lines P1 and P2 that respectively have green and purple seeds. Answer the following questions in regard to the hobbyist experiment. 1) What are the genotypes of the parental lines A and B? what are the genotypes of the gametes of each parent? 2)What is the phenotype and genotype of the F1 generation of the cross? 3) What are the proportions of the genotypes of the F2 generation? 4)What are the proportions of the phenotypes of the F2 generation?arrow_forwardcalculate the map distance between the genesarrow_forward1. If you allow the original unknown plant to self-fertilize, what is the probability of recovering offspring with wrinkled, green OR round, yellow peas? Complete the following steps to answer the question: a. What is the cross? (Write out the genotypes being crossed, based on your answer to 3c.) b. What are the target genotypes? (Use the Y_ and R_ notation). c. Break it down into single gene crosses: i. At the R locus only, what ratio of round:wrinkled do you expect from the cross? ii. At the Y locus only, what ratio of yellow:green do you expect from the cross? d. What is the total probability of getting offspring with wrinkled, green OR round, yellow peas? Use the multiplication and addition rules and show your work!arrow_forward
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