The harlequin ladybird, Harmonia axyridis, is an insect that shows discontinuous variation in colour pattern and continuous variation in body size. Within a species, the variation that is observed for a particular characteristic can be described as discontinuous or continuous. Discontinuous variation has a different genetic basis from continuous variation. State two differences between discontinuous variation and continuous variation, other than having a different genetic basis. ............................................................................................................................................... . ............................................................................................................................................... . ............................................................................................................................................... . .........................................................................................................................................

Biology
IGCSE&ALevel
CAIE
Exam No:9700_s24_qp_41 Year:2024 Question No:9(a)

Answer:



Knowledge points:

17.1.1 explain, with examples, that phenotypic variation is due to genetic factors or environmental factors or a combination of genetic and environmental factors
17.1.2 explain what is meant by discontinuous variation and continuous variation
17.1.3 explain the genetic basis of discontinuous variation and continuous variation
17.1.4 use the t-test to compare the means of two different samples (the formula for the t-test will be provided, as shown in the Mathematical requirements)

Solution:

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