Listing all results (2350)

Spreadsheet tutorials

This series of spreadsheet tutorials for excel 10, from the Howard Hughes Medical Institute, work through a range of spreadsheet functions that can be used when analysing data.

Each tutorial contains detailed instructions and a series of exercises to work through. The tutorials start with some of the more...

Football in science teaching

What is the perfect curve of a ball’s trajectory, what must the ideal turf be like, and what’s the CO2 balance of the UEFA European Championship? From the measurement of the mass of the air inside the ball, to the influence of energy drinks on the performance of the...

Electrophoresis gel with annotation

Di-deoxy sequencing is a way to determine the order of bases (A,C,G and T) in a piece of DNA. A set of 4 lanes (one for each base) is needed to sequence any given piece of DNA. Wherever a black
band appears in a particular lane that base is present. By reading off the order of bands across the four lanes the...

Di-deoxy sequencing gel with annotation

Di-deoxy sequencing is a way to determine the order of bases (A,C,G and T) in a piece of DNA.  A set of 4 lanes (one for each base) is needed to sequence any given piece of DNA. Wherever a black band appears in a particular lane that base is present. By reading off the order of bands across the four lanes the...

Automated DNA sequencing output

The output from an automated DNA sequencing robot used by the Human Genome Project to determine the complete human DNA sequence. Each peak shows the presence of a particular base. The sequence of bases in a given stretch of DNA can therefore be read from the order of the peaks along the trace. The sequences of...

GENIE jumping genes

The aim of this activity is for students to use tiddlywinks to represent sections of jumping genes, which they then flick onto a poster which is representative of a section of the human genome. Where their "gene" lands either will or will not disrupt the gene and may then cause disease. An accompanying PowerPoint...

BRAF: from gene to cancer therapy

This film tells the story of how DNA sequencing was used to identify the gene BRAF. Clinical researcher Ultan McDermott tells the story of how scientists at the Wellcome Trust Sanger Institute discovered a specific mutation in the BRAF gene, which is found in around half of malignant melanoma cases. He...

Chromosomes in metaphase

An image representing human chromosomes in metaphase. Atomic Force Microscope image of human chromosomes in a metaphase spread.

This resource is part of the Post 16 genetics and ...

DNA replication theory

Diagramatic representation of the replication of DNA. This is the process by which the cell makes a copy of its existing DNA before it divides. This therefore ensures that each new cell receives a full complement of DNA. The DNA polymerase enzyme can only add new bases in the 5'-3' direction. This leads to...

Hydrogen bonding

Diagram showing the hydrogen bonds that form between the four bases in the DNA double helix. These weak forces between the bases keep the two complementary strands of DNA together and ensure that the correct bases are put in the right place during replication of the DNA molecule. A always pairs with T and C always...

Pages

View all publishers