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diploid two allele chromosome characteristic segregate fertilisation gene gamete alleles
A ____________________ is a segment of DNA on a ____________________ that specifies a particular ____________________ . It has two ____________________ in an individual and ____________________ or more alternative alleles in a population .
An ____________________ is an alternative form of the same gene and occurs in pairs in a ____________________ individual . Alleles ____________________ during ____________________ formation and pair up during zygote formation ( ____________________ ) , when the diploid condition of an organism is restored .
genotypes homozygous different heterozygous physical phenotype same
'Pure - breeding' ____________________ refer to organisms that are ____________________ ( e . g . , TT or tt ) for a particular trait i . e . have two of the ____________________ alleles . 'Hybrid' genotypes are ____________________ for a particular characteristic . That is , they have two ____________________ alleles ( e . g . , Tt ) .
Genotype is the genetic makeup of an organism and it determines the ____________________ appearance , physiology and behaviour of an organism - or its ____________________ .
genetics frequencies quantative macroevolution evolution allele
Population ____________________ combines Mendelian genetics and Darwinian ____________________ to explain how changes in allele ____________________ arise in populations and how these changes can lead to microevolution and ____________________ . Population geneticists study mathmatical changes in gene and ____________________ frequencies in populations to develop ____________________ ways of exploring different evolutionary hypotheses .
disease 1% disorders single loci SNP markers genome chromosome haplotype
SNPs are ____________________ on chromosomes where alleles differ at a ____________________ base . The rarer alleles must have a frequency of at least ____________________ in a random set of individuals in a population to be termed a ____________________ .
SNPs are valuable as genetic ____________________ for identifying individuals and can be associated with certain ____________________ and traits .
A ____________________ is a cluster of marker alleles on the same ____________________ and can be used for association studies in ____________________ and to track the inheritance of different regions of the ____________________ .