Genes Crossword Puzzle

QUESTIONS LIST:

• allele: version of a gene
• dominant: version of a gene that is always expressed
• recessive: version of a gene that is only expressed when present in duplicate
• phenotype: physical characteristic controlled by a single gene
• gentotype: a combination of alleles
• gamete: a cell containing only one copy of each chromosome
• heterozygous: a cell containing two of the same allele
• homozygous: a cell with two different alleles
• genome: the full set of dna
• mutation: a small change to dna
• nucleotide: a sugar, phosphate and base