CIE iGCSE Co-Ordinated Science B17.1 Variation Exam Style Questions Paper 1
Question
The size of tomatoes is an inherited characteristic with a range of phenotypes between two extremes.
What best describes this?
(A) continuous variation
(B) discontinuous variation
(C) natural selection
(D) selective breeding
▶️Answer/Explanation
Ans: A
Question
Fingerprints are classified by their shape.
A class of students identified the type of fingerprint they have on the thumb of their left hand.
The chart shows the results.
Which statement about the data in the chart is correct?
A Fingerprints are an example of continuous variation because the data shows a range of
phenotypes.
B Fingerprints are an example of continuous variation because the data shows no intermediates.
C Fingerprints are an example of discontinuous variation because the data shows a range of phenotypes.
D Fingerprints are an example of discontinuous variation because the data shows no intermediates.
▶️Answer/Explanation
Ans : D
Question
Which term describes differences between individuals of the same species?
(A) competition
(B) generation
(C) selection
(D) variation
▶️Answer/Explanation
Ans: D
Question
Continuous variation is defined as a ……1…… of phenotypes ……2…… .
Which words correctly complete gaps 1 and 2?
▶️Answer/Explanation
Ans : C