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Date November 2012 Marks available 1 Reference code 12N.1.SL.TZ0.15
Level Standard level Paper Paper 1 Time zone TZ0
Command term Question number 15 Adapted from N/A

Question

In peas, tall is dominant to dwarf. In a cross between a dwarf plant and a heterozygous tall plant what percentage of the offspring will be dwarf?

A. 0 %
B. 25 %
C. 50 %
D. 100 %

Markscheme

C

Examiners report

Here is another example of a well-answered question, showing that monohybrid crosses seem well studied by candidates.

Syllabus sections

Core » Topic 3: Genetics » 3.4 Inheritance
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