A change in the nucleotide sequence of DNA that can cause mutated genes.

Short sections of DNA that code for a specific characteristic or protein.

A mass of cells that has been produced through uncontrolled cell division.

A tumour that is non-cancerous and contained to one area.

A tumour that is cancerous and can spread.

Errors in cell division and cancer: beyond the basics

Combined science

Growth in multicellular organisms

The cell cycle and cell division: mitosis

The structure of DNA: including nucleotides

Making gametes: meiosis

Pupils will learn about unspecialised cells in animals and plants, how they become specialised, and potential benefits and issues with using stem cells in medicine. 

Pupils learned about dominant and recessive alleles, and how to use models of single gene inheritance to make predictions about the genotypes and phenotypes of offspring.

This unit covers mitosis and the cell cycle in growth, cancer as uncontrolled cell division, and the role of mutations in genetic variation. It explains meiosis in gamete formation and chromosome reduction. The emphasis is on recording observations and interpreting patterns to draw conclusions.

Cell division: mitosis and meiosis

Subjects which particular individuals may be sensitive to, eg, adoption, migration, bereavement or death, divorce, poverty, deprivation.

Depiction or discussion of sensitive content

Depiction or discussion of mental health issues

Depiction or discussion of sex or sexual body parts, including sex education.

Depiction or discussion of sexual content

Which statements are usually true for benign tumours?

lung, mouth, bowel, stomach and cervical cancers

Match the lifestyle risk factor to the type of cancer it is linked to. 

A mutation causes a change in the nucleotide sequence of DNA.

A gene that controls the cell cycle is changed.

Put these statements in order to show how a tumour can form. 

A sub-cellular structure which surrounds the cell.

What process is used to create new cells for growth and repair in multicellular organisms?

Which of the following is not a lifestyle factor?

Everyone who smokes will develop lung cancer.

People who smoke have the same risk as non-smokers for developing lung cancer.

People who smoke increase their chance of developing lung cancer.

If smoking is a risk factor for developing lung cancer, which statement is true. 

{{}} is a chemical substance that carries the genetic information. 

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