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ARTICLE

Genotype and phenotype

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 ...

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ARTICLE

DNA profiling

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 ...

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ACTIVITY

DNA detective

In this activity, students learn about the collection and processing of DNA evidence and use DNA profiling to solve a crime. The activity is designed for use on an interactive whiteboard with the ...

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ARTICLE

The genotype/phenotype connection

What role do genes play in development? How does your genotype contribute to your phenotype? Or more explicitly, how do genes work together to produce RNA that codes for proteins that make up ...

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Obesity: genetic or environmental?

Rachael Taylor is a Research Associate Professor based at the Edgar National Centre for Diabetes Research, University of Otago. Her research focuses on the environmental factors that contribute ...

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Crime scene evidence

Forensic scientists collect or process trace evidence such as hair, skin, blood or semen samples that is found at crime scenes. Crime scene evidence can include a wide variety of substances such ...

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ARTICLE

Uniquely me – key Terms

What makes you, you and me, me? Genes or environment? How we look and act is the result of the interaction of our genes with our environment. Even identical twins, with an identical genetic ...

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ACTIVITY

Genetics webquest

In this activity, students carry out a genetics webquest using resources from the Science Learning Hub or a genetics animation from the Learn Genetics website. By the end of this activity ...

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The ideal barcoding gene

A gene from mitochondria, called cytochrome c oxidase subunit 1 (CO1), was selected by the Consortium for the Barcode of Life (CBOL) as the ideal gene for DNA barcoding animal species. What makes ...

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ARTICLE

Cell division

The most important part of the cell is the nucleus, for this is where all the instructions for the cell’s activities are kept. These instructions are in the chromosomes. This nuclear material is ...

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ARTICLE

Twins

Twins are 2 offspring born from the same pregnancy. It is estimated that twins make up about 2% of the world’s population. In recent times, however, there has been an increase in the incidence of ...

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ARTICLE

Forensics – interesting facts

Here are some interesting facts about forensics and DNA: New Zealand was the second country in the world to establish a databank of DNA profiles. Find out more about New Zealand's DNA Databank ...

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ARTICLE

Forensics and DNA

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 ...

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ACTIVITY

Genetics: true or false?

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 ...

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Fertilisation to adulthood – Timeline

This timeline gives information on the key stages in the development of a human. Please note: The weeks in pregnancy are typically counted from the 1st day of a woman’s last menstrual cycle. This ...

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ARTICLE

New Zealand's DNA Databank

In 1995, New Zealand became the second country in the world to collect and store DNA profiles in a databank. Since then, forensic scientists and Police have used the national DNA Profile Databank ...

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ARTICLE

Understanding brain development

We all have a genetic blueprint for development, but we know there are other factors that influence our development. Consider identical twins. These individuals share the same genetic make-up but ...

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ARTICLE

DNA barcoding

DNA barcodes are short sequences from a standard region of the mitochondrial cytochrome c oxidase subunit 1 (CO1) gene. A simple method of obtaining a DNA barcode is described here. What does DNA ...

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ACTIVITY

Family resemblance: traits through generations

In this activity, students simulate the passing of traits through three generations. The students work in groups of four ‘siblings’ and compare their combinations of traits. By the end of this ...

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