GCSE - Genetics science quiz

A quiz for those studying genetics at a GCSE level. You may find some trick questions so I advise to read them carefully, these are the type of questions you may find in an exam paper, so take your time and check your answers.

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  • Created by: Lauren
  • Created on: 10-08-09 11:15
Differences between individuals of the same species are described as variations, variation may be due to two things:
Genetic information and Environmental differences
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What is the job of the Gene?
For the different genes to control the development of different characteristics
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Genes occur in long strings which are called?
Chromosomes
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Chromosomes are made of DNA molecules, but what does DNA stand for?
Deoxyribonucleic acid
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Each DNA molecules consists of two strands, which are coiled to form a ....
Double Helix
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Genes carry out the development of different characterists by issuing instructions to the cell but the cell carries out these instructions by producing ....
Proteins
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Proteins are formed inside a cell and are either structual proteins or enzymes, what are structual proteins used for?
Used for the cell growth or repair
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What are enzymes used for?
To speed up chemical reactions in cells
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Discontinuous variation is a variation that is whole and can not be a mixture or inbetween for example someones blood type can not be a mixture or in between, but someones height can be.. you're not just tall or short, this would be continous variation, b
Weather someone can roll their tongue or not
9 of 15
If someone has the gene ** in them, would they be a boy or a girl?
Girl
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What is an Alleles?
Different versions of genes
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What does it mean to be a carrier?
To have the disease present inside of you but has no affect on your body, you are just a carrier.
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If only ONE of your parents have Huntingtons disease, what is the chance that you will develop the disease?
1/2 chance (50%)
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What is the meaning of Dominant
You only need one of the copy in order for it to function
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What is the meaning of recessive
you need more than one copy inorder for it to function
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Other cards in this set

Card 2

Front

What is the job of the Gene?

Back

For the different genes to control the development of different characteristics

Card 3

Front

Genes occur in long strings which are called?

Back

Preview of the front of card 3

Card 4

Front

Chromosomes are made of DNA molecules, but what does DNA stand for?

Back

Preview of the front of card 4

Card 5

Front

Each DNA molecules consists of two strands, which are coiled to form a ....

Back

Preview of the front of card 5
View more cards

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Crystal along with Princess

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very helpful thank you

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