DP Biology (first assessment 2025)

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Question 19N.1A.SL.TZ0.10

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.SL.TZ0.10
Level SL Paper 1A Time zone TZ0
Command term Determine Question number 10 Adapted from N/A
10.
[Maximum mark: 1]
19N.1A.SL.TZ0.10

Which statements are characteristics of alleles?

I. Alleles differ significantly in number of base pairs.

II. Alleles are specific forms of a gene.

III. New alleles are formed by mutation.

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

[1]

Markscheme

C

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