Patterns of Inheritance 0.0 / 5 ? BiologyDNA, genetics and evolutionA2/A-levelOCR Created by: tmg123Created on: 28-04-19 17:45 variation within species intraspecific 1 of 18 Observable characteristic of an organism phenotype 2 of 18 what it is called when environmental conditions alter the phenotype to resemble a genetic change phenocopy 3 of 18 type of variation not affected by the environment and 1 pair of alleles discontinuous 4 of 18 causes genetic variation and occurs in meiosis 1 crossingover 5 of 18 what does independent assortment cause variation 6 of 18 when two alleles of the same gene influence the phenotype as both dominant codominance 7 of 18 name of dominance which cause blending of alleles incomplete 8 of 18 phenotype of the standard form of a species as it exists in nature wild 9 of 18 expected phenotypic ratio of dihybrid cross ?:3:3:1 nine 10 of 18 when one gene suppresses the expression of another gene Epistasis 11 of 18 statistical test used to see if there is a difference between observed and expected data chisquared 12 of 18 name of effect where a small population colonises a new area founder 13 of 18 type of speciation caused by a geographical barrier allopatric 14 of 18 an example of co-dominance in humans is ? type blood 15 of 18 type of linkage when there is some distance between the linked loci so crossing over can occur partial 16 of 18 changes allele frequency in the absence of natural selection is genetic ? drift 17 of 18 selection where humans choose individual with certain features to reproduce artificial 18 of 18
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