Have Some Fun! Biologist Joke!

Enzymes are things invented by biologists that explain things which otherwise require harder thinking.

INIT IV. INHERITANCE

Text 4.1. Variation

■ Essential targets:

By the end of this text you should be able to:

·define the following genetic terms: allele; homozygous; heterozygous; dominant; recessive; polygenic

·distinguish between genotype and phenotype

·distinguish between continuous variation and discontinuous variation

·explain how mutations contribute to variation.

Pre-reading