In this activity, students use an interactive or paper-based graphic organiser to explore common alternative conceptions about genetics. This activity can be done individually, in pairs or as a ...
We are all unique. Even monozygotic twins, who are genetically identical, always have some variation in the way they look and act. This uniqueness is a result of the interaction between our ...
In this interactive, you can label parts of the human heart. Drag and drop the text labels onto the boxes next to the diagram. Selecting or hovering over a box will highlight each area in the ...
DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. Scientists can buy ready-to-use DNA extraction kits. These kits help extract DNA from particular cell types or ...
PCR is shorthand for a simple but very useful procedure in molecular biology called the polymerase chain reaction. It is a technique used to amplify a segment of DNA of interest or produce lots ...
Although we are all unique, there are often obvious similarities within families. Maybe you have the same nose as your brother or red hair like your mother? Family similarities occur because we ...
Mendel is known as the father of genetics because of his ground-breaking work on inheritance in pea plants 150 years ago. Gregor Johann Mendel was a monk and teacher with interests in astronomy ...
Our understanding of how inherited traits are passed between generations comes from principles first proposed by Gregor Mendel in 1866. Mendel worked on pea plants, but his principles apply to ...
Like other organisms, bacteria use double-stranded DNA as their genetic material. However, bacteria organise their DNA differently to more complex organisms. Bacterial DNA – a circular chromosome ...
DNA profiling is the process where a specific DNA pattern, called a profile, is obtained from a person or sample of bodily tissue Even though we are all unique, most of our DNA is actually ...
Proteins are molecules made of amino acids. They are coded for by our genes and form the basis of living tissues. They also play a central role in biological processes. For example, proteins ...
Gel electrophoresis is used to separate macromolecules like DNA, RNA and proteins. DNA fragments are separated according to their size. Proteins can be separated according to their size and their ...
In the laboratory, restriction enzymes (or restriction endonucleases) are used to cut DNA into smaller fragments. The cuts are always made at specific nucleotide sequences. Different restriction ...
Bacteria are commonly used as host cells for making copies of DNA in the lab because they are easy to grow in large numbers. Their cellular machinery naturally carries out DNA replication and ...
Proteins are the key working molecules and building blocks in all cells. They are produced in a similar two-step process in all organisms called protein synthesis – DNA is first transcribed into ...
This interactive looks at the electromagnetic spectrum. To use this interactive, move your mouse or finger over any of the labelled boxes and select to obtain more information. Select here for a ...
The discovery that genes are made up of DNA and can be isolated, copied and manipulated has led to a new era of modern biotechnology. New Zealand has many applications for modern biotechnologies ...
DNA cloning is the starting point for many genetic engineering approaches to biotechnology research. Large amounts of DNA are needed for genetic engineering. Multiple copies of a piece of DNA can ...
The bacterium Escherichia coli (E. coli for short) is crucial in modern biotechnology. Scientists use it to store DNA sequences from other organisms, to produce proteins and to test protein ...
Scientists at AgResearch in New Zealand have successfully produced healthy transgenic cows that make modified milk or human therapeutic proteins in their milk. What is a transgenic cow ...
Forensics is the application of science in a legal setting. An example of modern forensics evidence is the use of DNA profiling. Sources of DNA include blood, hair, semen, saliva, bone and ...
Cows are ruminants. They have especially adapted digestive systems that allow them to only eat plants.
Biotechnology has helped improve the quality of people’s lives for over 10,000 years. Today’s biotechnologies vary in application and complexity. However, they all have potential to change our ...
In this activity, students work through a series of slides to learn about the collection and processing of DNA evidence and use DNA profiling to solve a crime. The activity provides experience ...
