Revision Techniques – Flash cards

Genetic Diseases and Cloning

Learning Objectives

• To learn a new revision technique• To practice summarising your learning

• Outcomes– To produce flash cards on a particular given topic

Genes

How many chromosomes do we have in

our body cells?

How many chromosomes do we get from each parent?

What is a gene?

What is a chromosome?

What is a clone?

What is a dominant

gene?

What is a recessive

gene?

In which part of a cell are

chromosomes found?A gene is the basic unit of

inheritance and controls what an organism is like.

A chromosome is a long length of DNA that carries lots of genes

Chromosomes are found in the nucleus of a cell

Human beings have 46 chromosomes in their body cells

We get 23 chromosomes from each parent

A dominant gene (allele) is the one that expresses itself in an organism. It is the more “powerful” allele

A recessive gene is the “weaker” gene. It will not express itself when a dominant allele is present.

A clone is a genetically identical copy of an organism

What are flash cards?

• A card containing key points about a particular topic, issue, subject etc.

What do flash cards include?

• Subject/topic on one side• Bite-size chunks of information opposite

– Keywords– Definitions– Lists– For/against– Main points– Mnemonics– Colour-coding– Diagrams

Why are flash cards useful?

• The brain works better with bite-sized chunks of information

• Force you to break down your knowledge and learning into key points

• They are easily organised• Once created, they are time-savers• Useful tool when revising in groups

Task – Create a set of flash cards on a topic from Genetics & Cloning

• Use the resources provided to find the information you need about your topic

• Read, then summarise that information• Create flash cards about your topic• You have 20 minutes to complete this task

Example: create a set of flash-cards on the topic of Huntington’s Disease

Your flash-cards might include information, in relation to your specific topic, about the following:– Causes– Symptoms– Types of gene– Genetic cross– Embryo testing, particularly including ethical issues

• You may be able to create a flash card that includes all of these issues, or choose a number of them to concentrate on

Share with the group

• Circulate around each table to see what other groups have produced