For music tuition visit:

Home Tuition Scotland can provide a Standard grade Biology tutor, Intermediate 1 Biology tutor, Intermediate 2 Biology tutor, National 4 Biology tutor, National 5 Biology tutor, Higher Biology tutor or Advanced Higher Biology tutor to deliver exam success.

Please book today

Our qualified Biology tutors are experts in one-to-one Biology tuition and will cover topics including:

a) Variation
1 Meiosis and the dihybrid cross.
i Sexual reproduction as a means of enabling genetic variation to be maintained in the
population and its importance in long-term evolutionary change.
ii Outline of meiosis: haploid gamete production.
Crossing over and independent assortment of chromosomes during meiosis: a means of producing new phenotypes.
iii The dihybrid cross: expected F2 phenotypic ratio.
2 Linkage and crossing over.
i The existence of linked genes and its effect on the F2 generation.
Comparison of the distance between linked genes and the frequency of recombination.
ii Crossing over of genes at chiasmata during meiosis resulting in recombinant gametes.
Separation of linked genes as a source of variation.
iii Sex linkage.
3 Mutation.
i Characteristics of mutant alleles, to include random occurrence and low frequency.
ii Mutagenic agents.
iii Changes in the number of chromosomes through non-disjunction.
iv Polyploidy: advantages in crop production.
v Change in the structure of one chromosome (duplication, translocation, deletion,
inversion).
vi Alteration of base type or sequence (substitution, insertion, deletion, inversion).
b) Selection and speciation
1 Natural selection
i The survival of those organisms best suited to their environment.
ii The concept of the species.
iii The importance of isolating mechanisms as barriers to gene exchange leading to
evolution of new species.
iv Adaptive radiation.
v The high-speed evolution of organisms such as antibiotic resistant bacteria and the
melanic peppered moth.
vi The conservation of species through wildlife reserves, captive breeding and cell banks.
The maintenance of genetic diversity.
2 Artificial selection.
i The evolution of a wide variety of crops and domesticated animals through selective
breeding and hybridisation as undertaken by humans.
ii The contribution of genetic engineering to the development of new varieties.
iii Somatic fusion in plants to produce new species.
c) Animal and plant adaptations
1 Maintaining a water balance.
Animals
i Osmoregulation in freshwater fish and saltwater bony fish.
ii Adaptations associated with salmon and eel migration.
iii Water conservation in the desert mammal.
Plants
i The transpiration stream.
ii Stomatal mechanism.
iii Adaptations in xerophytes and hydrophytes.
2 Obtaining food.
Animals
i Foraging behaviour and search patterns in animals.
ii Economics of foraging behaviour.
iii Examples of interspecific and intraspecific competition arising from scarcity of
resources.
iv Dominance hierarchy and cooperative hunting within the social group.
v Territorial behaviour in relation to competition for food.
Plants
i Comparison of the sessility of plants and the mobility of animals.
ii Competition in plants mainly for light and soil nutrients.
iii The effect of grazing by herbivores on species diversity.
iv Comparison of the compensation point in sun and shade plants.
3 Coping with dangers.
Animals
i Avoidance behaviour and habituation.
ii Learning as a long-term modification of response.
iii Individual and social mechanisms for defence.
Plants
i Structural defence mechanisms.
ii Ability to tolerate grazing.

If you require Biology lessons Edinburgh, Biology lessons Glasgow, Biology lessons Aberdeen, or Biology lessons Dundee, at a price you can afford, please contact us today.

Book now