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Genetic Inheritance
Question | Answer |
---|---|
Define gamete | A cell containing a single set of chromosomes |
Define Chromosome | A long strand of DNA knitted together |
Define Gene | A section of DNA that codes for a characteristic |
Define Allele | A version of a gene |
Define Dominant | A dominant allele is always expressed |
Define Recessive | A recessive allele has its effects hidden by a dominant allele |
Define Homozygous | A pair of alleles that are the same |
Define Heterozygous | A pair of alleles that are different |
Define Geneotype | A pair of alleles for a gene |
Define Phenotype | Characteristics expressed by a geneotype |
What is polydactyly | A disease causing extra fingers or toes, carried on a dominant allele |
What is cystic fibrosis | A disorder of cell membranes, carried on a recessive allele |