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Describe a sex-linked characteristic as a feature in which the gene responsible is located on a sex chromosome and that this makes the characteristic more common in one sex than in the other
1 Answer Explain the inheritance of ABO blood groups: phenotypes are A, B, AB and O blood groups and alleles are IA, IB and Io
1 Answer Describe codominance as a situation in which both alleles in heterozygous organisms contribute to the phenotype
1 Answer Explain how to use a test cross to identify an unknown genotype
1 Answer Use Punnett squares in crosses which result in more than one genotype to work out and show the possible different genotypes
1 Answer Use genetic diagrams to predict the results of monohybrid crosses and calculate phenotypic ratios, limited to 1:1 and 3:1 ratios
1 Answer Interpret pedigree diagrams for the inheritance of a given characteristic
1 Answer Describe a recessive allele as an allele that is only expressed when there is no dominant allele of the gene present in the genotype
1 Answer Describe a dominant allele as an allele that is expressed if it is present in the genotype
1 Answer State that a heterozygous individual will not be pure-breeding
1 Answer
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Sourav Pan