Differences between members of the same species.

A large chemical molecule made of nucleotides. It carries the genetic code of all living organisms.

A change in the nucleotide base sequence in the DNA of the genome.

A region of DNA in which the sequence of nucleotide bases has been changed.

Variation and genetic mutations

Biology

Pupils will learn about eukaryotic and prokaryotic cells, and that subcellular evidence, including from analysis of genomes, has led to the classification and sometimes reclassification of organisms into taxonomic groups from species to domains.

Pupils learned that the fossil record provides evidence of evolution from common ancestors through transitional species to modern species, and that the theory of evolution by natural selection can be used to explain phenotypic changes in populations of species over generations.

Variation and natural selection at the genetic level

Organisms that are better adapted to their environment are more likely to survive, reproduce and pass on their genes to their offspring.

A feature that organisms have that helps them live in a particular place and survive.

A genetic variant is a region of DNA in which the sequence of nucleotide bases has been changed.

Natural selection at the genetic level

Microscopic living thing, such as a bacterium or an amoeba.

A form of reproduction in which a cell divides to produce two genetically identical cells.

Mutations and evolution in bacteria

The process in which the characteristics of species change over many generations, sometimes becoming new species.

Differences between individuals that are caused by the genetic material they inherit.

The process of creating offspring through the fusing of gametes.

Reproduction involving one parent, giving genetically identical offspring.

Variation and natural selection at the genetic level

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Some of these lessons will soon be taken down.