IB Biology A3.1 Definitions
This page contains our IB Biology definitions for A3.1. By learning each one of these definitions, you will fully cover the content for IB Biology 'Diversity of organisms'.
allele
Various specific forms of a gene that only differ from each other by one or a few bases
autoradiography
A process by which a substance is radioactively labelled, coated with photographic film, and then viewed under a microscope
genome
All the genes in an organism
karyogram
An image showing an organism's homologous chromosome pairs in order of decreasing length to determine an individual's sex or or diagnose chromosomal abnormalities
karyotype
A person's number and type of chromosomes
species
A group of organisms that can potentially interbreed
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