GR 12 GENETICS: Exam Practice Booklet M\C PART 2
Exam Practice Questions Booklet Multiple Choice Questions 1.16 - 1.23
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1.16 A red flowering plant is crossed with a white flowering plant. All the offspring have pink flowers. When the 2 pink flowering plants are crossed, the next generation of flowering plants will have flowers that are ... *
QUESTIONS 1.17 AND 1.18 ARE BASED ON THE GENETIC CROSS BELOW.
Two rose plants with pink flowers were crossed and it was found that although most of the offspring had pink flowers, some had red and some had white flowers.
1.17 If 152 plants were produced in the F1-generation, how many of these plants were expected to have pink flowers? *
1.18 Breeders prefer to produce red roses. If the allele for red is R and the allele for white is W, which ONE of the following crosses would give the highest proportion of red roses? *
QUESTIONS 1.19, 1.20 & 1.21 ARE BASES ON THE DIAGRAM BELOW.
1.19 Which fly is homozygous for the antennae shape and heterozygous for the body pattern? *
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1.20 What is the genotype of Fly 3? *
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1.21 Which ONE of the following will represent the possible gametes for Fly 4? *
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1.22 What is the percentage chance of a woman having a female child? *
1.23 If a recessive allele on the X-chromosome is passed on to the next offspring it is an example of ...
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