Genetics and Blood Groups Flashcards

1
Q

What is the definition of a Genotype??

A

Pair of alleles ( types of genos )

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2
Q

Examples of alleles??

A

Eye colour
Hair colour
Skin colour
Tongue roll

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3
Q

What is always expressed when present??

A

Dominant Alleles

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4
Q

What is only expressed when no dominant one is present??

A

Recessive gene

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5
Q

What is homozygous??

A

When both the alleles are the same e.g. / BB , bb

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6
Q

What is Heterozygous??

A

Different alleles e.g./ Bb

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7
Q

How genes are expressed e.g./ brown eyes, blue eyes

A

Phenotype

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8
Q

Who started the Great Pea Extravaganza??

A

Mendel

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9
Q

Where was Mendel born??

A

In the Czech Republic in 1822

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10
Q

What was Mendel interested in??

A

Human deficiency

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11
Q

What are grease letters for??

A , B , AB , O

A

The 4 blood groups

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12
Q

What are the possible genotypes for the A blood Group??

A

IA , IA
IO , IA
IA , IB

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13
Q

What are the possible genotypes for the B blood Group??

A

IB , IB
IO , IB
IA , IB

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14
Q

What are the possible genotypes for the O blood Group??

A

IO , IO

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15
Q

Which blood group is the universal recipient??

A

AB Blood

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16
Q

What does Agglutination mean??

A

Blood Clumping

17
Q

What is an antigen??

A

Proteins of a cell surface that generate an immune response

18
Q

What is an anti body??

A

’ Y ‘ shape proteins which are a part of our immunisation

19
Q

How can agglutination be deadly??

A

The blood cells clog up which can cause blood clotting

20
Q

Is a patient had AB blood. What blood can they receive?

A

A,AB,O

21
Q

What is a mutation??

A

When something changes the base sequence

22
Q

Why do mutations sometimes affect organisms??

A

It changes the protein sequence

23
Q

Why are many mutations harmless??

A

If they are picked up naturally

24
Q

Why are some mutations harmful??

A

They can hurt an animal e.g. / Pug

25
Q

Why are some mutations beneficial??

A

The can be good because they can change the animals lives did the better

26
Q

Describe a mutation which caused a disease??

A

Cystic Fibrosis

27
Q

Which condition is caused because of an extra chromosome??

A

Downs Syndrome

28
Q

Describe a beneficial mutation??

A

Peppered moth - industrial revolution made everything black so the moth turned black so they could blend into the trees

29
Q

The ways in which organisms differ from each other??

A

Variation

30
Q

Range of values

A

Continuous variation

31
Q

Yes or no categories??

A

Discontinuous variation

32
Q

Continuous variation is …..

A

Caused by environmental e.g. / straight or curly hair and genetic e.g. / weight and height factors. Lots of genes involved

33
Q

What type of graph should you use if you have continuous and environmental variation??

A

Line graph

34
Q

What graph do you need to use if you have discontinuous and inherited variation??

A

Bar Graph