Continuity and Change D.8 Inheritance (id: 85d12a96e)

本题目来源于试卷: Continuity and Change D.8 Inheritance，类别为 IB生物学

[问答题]
In guinea pigs (Cavia8( o mk08sc /hvc(wcad potfz6 v0wz -z2mrcellus), long hair (L) is dominant to short hair (l), and curly hair (C) is dominant to straight hair (c). A test cross was carried out between male heterozygous long, curly-haired guinea pigs and female short, straight-haired g tzzfw2 60z-vmuinea pigs and a chi-squared test (χ2) was carried out on the offspring.



1.1.Using a genetic diagram, state the expected ratio of the cross between the two parents.

1.2.Identify the recombinants.

2.1.Calculate the ratio of the observed phenotypes.

2.2.Suggest a reason for the difference between the expected and observed ratios.

3.1.State the null hypothesis in this study.

3.2.Deduce with reasons whether the null hypothesis should be accepted.

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