B1

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How many pairs of chromosomes do sex cells (egg and sperm) contain?
23
1 of 17
Is it the sperm cell or the ovum that determines the sex of a baby?
Sperm Cell
2 of 17
Allele
Different forms f the same gene
3 of 17
Genotype
The genes you carry- Represented by letters Tt
4 of 17
Phenotype
Your physical appearance as a result of the genes you carry
5 of 17
Dominant
Only need 1 allele to show the characteristics
6 of 17
Recessive
You need 2 alleles to show the characteristics
7 of 17
Homozygous
Same alleles e.g TT or tt
8 of 17
Heterozygous
Different allele Tt
9 of 17
Huntington's disease is caused by what allele?
Dominant
10 of 17
3 symptoms of Huntington's disease
Loss of muscle. Forgetfulness. Loss of understanding.
11 of 17
What allele causes cystic fibrosis?
Recessive
12 of 17
Name 3 symptoms in the digestive system
Thick sticky mucus in the pancreas. Prevents enzyme release. Food not digested properly.
13 of 17
Name 2 symptoms in the respiratory system
Thick sticky mucus, blocks passageway in the lungs. Breathlessness and respiratory diseases.
14 of 17
What does a faulty allele do?
Forms mucus
15 of 17
List 3 reasons why to getting a genetic test?
To determine if inherited disease. Likely hood of developing a disease. Test embryos for embryo selection. Test an individual before prescribing drugs.
16 of 17
what are the Implications of genetic testing?
Risk of miscarriage. Inaccurate results including false positive and false negative. To not or have children.
17 of 17

Other cards in this set

Card 2

Front

Sperm Cell

Back

Is it the sperm cell or the ovum that determines the sex of a baby?

Card 3

Front

Different forms f the same gene

Back

Preview of the back of card 3

Card 4

Front

The genes you carry- Represented by letters Tt

Back

Preview of the back of card 4

Card 5

Front

Your physical appearance as a result of the genes you carry

Back

Preview of the back of card 5
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