Igcse Model Questions Vol1 2018 Biology Question 36
Practice objective / multiple choice question 36 from the 2018 Igcse Model Questions Vol1 Biology examination.
A plant species shows two traits: flower colour ((R) = red dominant to (r) = white) and plant height ((T) = tall dominant to (t) = dwarf). A heterozygous plant ((RrTt)) is crossed with a plant that is homozygous recessive for colour but homozygous dominant for height ((rrTT)). The genotype (rrTT) is lethal, so any offspring with this genotype do not survive. Determine the phenotypic ratio (red tall : white tall) among the surviving offspring.
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About This Question
This is Igcse Model Questions Vol1 2018 Biology Question 36. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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