1
Q
what is a gene?
A
a short length of DNA found on a chromosome that codes for a particular chromosome (expressed by the formation of different proteins)
2
Q
what are alleles?
A
variations of the same gene
3
Q
how many alleles do we have for each gene?
A
2
4
Q
where are our alleles inherited from?
A
one from our mother, one from our father
biology
flashcards
Decks in class (115)
# Cards
-
hormones118
-
random biology things39
-
cells38
-
similarities and differences between plant and animal cells13
-
stem cells9
-
importance of cell differentiation31
-
disadvantages and advantages of using stem cells in medicine13
-
specialised cells16
-
biological molecules tests6
-
DNA10
-
classifying organisms43
-
movement of substances into and out of cells24
-
practical: investigate diffusion & osmosis using living and non-living systems14
-
photosynthesis21
-
photosynthesis practical11
-
structure of a leaf20
-
components of a balanced diet27
-
digestive system59
-
practical: investigate the energy content in a food sample2
-
respiration15
-
practical: investigating respiration5
-
gas exchange in plants9
-
practical: gas exchange in plants9
-
structure of the gas exchange system27
-
transport10
-
ventilation12
-
gas exchange in the alveoli8
-
effects of smoking14
-
practical: investigating the effects of exercise on breathing9
-
transport in plants22
-
transpiration15
-
practical: transpiration4
-
blood24
-
vaccinations18
-
immune response to disease23
-
pathogens and immune response7
-
platelets and blood clotting8
-
the heart14
-
effect of exercise on heart rate17
-
CHD14
-
arteries, veins & capillaries35
-
the circulation system22
-
excretion15
-
the kidney46
-
osmoregulation12
-
urea6
-
response to stimuli: plants24
-
stimuli and receptors3
-
human nervous system38
-
the reflex arc16
-
the human eye29
-
thermoregulation13
-
reproduction38
-
flowering plants33
-
human reproductive system14
-
roles of oestrogen and progesterone in the menstrual cycle23
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roles of FSH and LH in the menstrual cycle10
-
role of the placenta22
-
implantation and development of the foetus14
-
development of secondary sexual characteristics7
-
the genome and genes8
-
nucleus and chromosomes10
-
DNA structure16
-
protein synthesis34
-
RNA structure14
-
alleles4
-
key terms in genetics12
-
codominance2
-
polygenic inheritance4
-
monohybrid inheritance: genetic diagrams3
-
family pedigrees2
-
sex chromosomes4
-
determing the sex of offspring at fertilisation6
-
mitosis9
-
importance of mitosis5
-
meiosis16
-
random fertilisation and generic variation12
-
variation with a species10
-
mutation15
-
darwin’s theory of evolution by natural selection9
-
antibiotics7
-
population, community, habitat and ecosystem10
-
trophic levels8
-
food chains, food webs, pyramids of biomass and pyramids of energy transfer21
-
industrial fermenters28
-
genetic revolution8
-
practical: investigating population size15
-
biodiversity4
-
abiotic and biotic factors13
-
carbon cycle5
-
nitrogen cycle28
-
biological consequences of air pollution12
-
enhanced greenhouse effect5
-
biological consequences of water pollution by sewage8
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biological consequences of eutrophication6
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the effects of deforestation6
-
crop plants: glasshouses and polyethene tunnels10
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crop plants: increasing CO2 and temperature2
-
crop plants: fertiliser35
-
crop plants: pest control14
-
yeast in food production11
-
practical: investigate the role of anaerobic respiration by yeast in different conditions11
-
role of bacteria in yoghurt production18
-
fish farming18
-
selective breeding in plants7
-
selective breeding in animals7
-
restriction enzymes23
-
vectors and recombinant DNA5
-
manufacturing human insulin5
-
GM plants and food production10
-
transgenic3
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the process of micropropagation6
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commercial use of micropropagation4
-
the production of cloned mammals10
-
cloning to produce human proteins14
