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lactase non-persistence is an example of a genetic trait that has been influenced by cultural factorsdomestication of animals by humans began
human disorders are increasingly being diagnosed and treated using biotechnological applications such as genetic testing containing testing of adults
discuss about xeno-transplanationmost defects diseases treated by xeno-transplanation are not genetic in origin so the therapy will have no impact
explain xeno-transplantation xeno-transplantation could enable individuals to survive and contribute their alleles to the gene pool who might not
what is stem cell therapymost defects diseases treated by stem cell therapy are not genetic in origin so the therapy will have no impact on gene
stem cellstem cell therapy could enable individuals to survive and contribute their alleles to the gene pool who might not have already done so thus
explain in detail about gene therapygene therapy technology as a whole has yet to be proven and its meeting a number of stumbling blocks so may have
what is gene therapygene therapy targets non germ line cells ie somatic cells so will not directly affect gene poolthe frequency of the allele for
explain about chthalamusthe realised niche of chthalamus is reduced from its fundamental niche and it is limited to the upper tidal zonelower
explain balanus the realised niche of balanus is the same as its fundamental niche lower limits as for fundamental nicheupper limits as
although there are differences in interpretation of the evidence it is generally accepted that human biological evolution has not been a linear
casein is the main protein in milk there are three types of casein one of which is beta casein beta casein comes in two main variants called a1 and
evolution of migrationeg benefits associated with migratory flights must be greater than those associated with staying in alaska and having to
what are the risks of migrationeg getting lost blown off course or similar and the effect of this when there is a limited fuel supply insufficient
what are the benefits of migrationeg need to leave alaska due to harsh weather conditions statement that birds are escaping nz winter not acceptable
biological mechanisms annual rhythm innate behaviour pattern stimulated by environmental cues shortened day length is the cue for preparation -
describe different animal groupsa could comprehensively compare and contrast the behaviours exhibited by social
explain the concept of selective breedinga understood the concept of selective breeding andor were
sympatric or allopatric speciationsympatrythe development of new species within a population two hebe sp living in the same location but with
adaptive radiation or convergence adaptive radiationexplanation of the adaptive radiation process linked to the introduction of a single species and
llustrate the role of each area in the evolution of the hebeuses appropriate examples from the hebe data to illustrate the role of each areaconcept
explain cooperative behaviours of social animal group group living specialist roles eg bees ants altruism eg social insects meerkats group defence
explain the competitive behaviour of social animal group dominance behaviours removal of individuals to other groups which minimises inbreeding eg
examples of cloning and molecular biology cloning may produce heterozygous individuals as mother was heterozygous and suggests a way to get pure
molecular biology - transgenesis difficult to successfully insert the gene then successfully re-implant embryo possible pleiotropic effects low