1
Q
What are the sex chromosomes in Females?
A
XX
2
Q
What are the sex chromosomes of males?
A
XY
3
Q
What are the chances of having a boy/girl?
A
50/50
4
Q
What does the 23 pair of chromosomes do?
A
22 control general body characteristics
Sex chromosomes carry the genes that determine sex
GSCE Biology AQA Paper 2
flashcards
Decks in class (72)
# Cards
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B10.1 Principles of homeostasis6
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B10.2 The structure and function of the nervous system11
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B10.3 Reflex actions13
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B10.4 The brain11
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B10.5 The eye19
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B10.6 Common problems of the eye17
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B11.1 Principles of hormonal control18
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B11.2 The control of blood glucose levels14
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B11.3 Treating diabetes9
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B11.4 The role of negative feedback10
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B11.5 Human reproduction17
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B11.6 Hormones and the menstrual cycle8
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B11.7 The artificial control of fertility13
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B11.8 Infertility treatments6
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B11.9 Plant hormones and the responses11
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B11.10 Using plant hormones8
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B12.1 Controlling body temperatures13
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B12.2 Removing waste products13
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B12.3 The human kidney15
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B12.4 Dialysis - an artificial kidney15
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B12.5 Kidney transplants11
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B13.1 Types of reproduction12
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B13.2 Cell division in sexual reproduction16
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B13.3 The best of both worlds20
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B13.4 DNA and the genome11
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B13.5 DNA structure and protein synthesis15
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B13.6 Gene expression and mutation9
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B13.7 Inheritance in action7
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B13.8 More about genetics4
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B13.9 Inherited disorders7
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B13.10 Screening for genetic disorders6
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B14.1 Variation4
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B14.2 Evolution by natural selection9
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B14.3 Selective breeding7
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B14.4 Genetic engineering8
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B14.5 Cloning12
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B14.6 Adult cell cloning5
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B14.7 Ethics of genetic technologies5
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B15.1 The history of genetics14
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B15.2 Theories of evolution7
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B15.3 Accepting Darwin's ideas2
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B15.4 Evolution and speciation6
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B15.5 Evidence for evolution6
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B15.6 Fossils and extinction7
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B15.7 More about extinction5
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B15.8 Antibiotic resistant bacteria6
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B15.9 Classification8
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15.10 New systems of classification7
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B16.1 The importance of communities7
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B16.2 Organisms in their environment7
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B16.3 Distribution and abundance7
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B16.4 Competition in animals3
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B16.5 Competition in plants6
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B16.6 Adapt and survive8
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B16.7 Adaptions in animals4
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B16.8 Adaptions in plants7
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B17.1 Feeding relationships7
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B17.2 Materials cycling5
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B17.3 The carbon cycle7
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B17.4 Rates of decomposition7
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B18.1 The human population explosion4
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B18.2 Land and water pollution7
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B18.3 Air pollution10
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B18.4 Deforestation and peat destruction4
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B18.5 Global warming3
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B18.6 The impact of change5
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B18.7 Maintaining biodiversity5
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B18.8 Trophic levels and biomass12
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B18.9 Biomass transfers4
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B18.10 Factors affecting food security9
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B18.11 Making food production efficient3
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B18.12 Sustainable food production4
