Genetics - Genes and Alleles

Question 1

genes

Answer 1

• the chemical factors located within the DNA that determines an organism’s traits
• the small changes in the larger shared genome are what make people unique

Question 2

alleles

Answer 2

• the different forms of a gene
• different combinations of alleles that you get from mom and dad will give you different expressions of the genes
• dominant and recessive
• dominant:
• allele that will be expressed and determines an organism’s appearance
• denoted by a capital letter
• recessive:
• an allele that when paired with a dominant allele has no effect on the organism
• denoted by a lower case letter