Exercise
Form 13: Plant Traits Genetics
In this engaging exercise, students will explore the fascinating world of plant genetics by investigating how traits such as leaf shape, flower color, and height are inherited through generations. Using hands-on activities and real-life examples, learners will analyze plant phenotypes and genotypes, ultimately understanding the principles of Mendelian genetics.
Questions
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MultiChoice
In Gregor Mendel's pea plants, tall (T) is dominant over short (t). What is the phenotype of a 'tt' plant?
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MultiChoice
Purple flower color (P) is dominant over white flower color (p) in pea plants. Which genotypes produce purple flowers?
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MultiChoice
Smooth seeds (S) are dominant over wrinkled seeds (s). A plant with wrinkled seeds must have which genotype?
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MultiChoice
Green pod color (G) is dominant over yellow pod color (g). What pod color does a plant with genotype 'Gg' have?
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MultiChoice
Axial flower position (A) is dominant over terminal flower position (a). What percentage of offspring from an Aa x aa cross will have terminal flowers?
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MultiChoice
Inflated pod shape (I) is dominant over constricted pod shape (i). What is the phenotype of an 'Ii' plant?
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MultiChoice
Yellow seed color (Y) is dominant over green seed color (y). If a YY plant is crossed with a Yy plant, what percentage of seeds will be yellow?
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MultiChoice
Two purple-flowered pea plants are crossed and produce some white-flowered offspring. What were the genotypes of the parents?
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MultiChoice
A true-breeding tall pea plant (TT) is crossed with a true-breeding short pea plant (tt). What will the F1 generation look like?
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MultiChoice
If the F1 tall plants (Tt) from the previous cross self-pollinate, what fraction of the F2 generation will be short?
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MultiChoice
Which allele combination in pea plants represents a purebred smooth-seeded plant?
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MultiChoice
A pea plant with green pods (Gg) is self-pollinated. What ratio of green to yellow pods is expected in the offspring?