Biology Explorers

Which scientist is credited with discovering the structure of DNA? a) Gregor Mendel
b) James Watson
c) Francis Crick
d) Rosalind Franklin

If an organism has two different alleles for a particular gene, it is called:
a) Homozygous
b) Heterozygous
c) Hemizygous
d) Dominant

Which of the following is not a component of a nucleotide in DNA?
a) Phosphate group
b) Nitrogenous base
c) Deoxyribose sugar
d) Ribose sugar

What is the term for a specific characteristic or trait that an organism can pass on to its offspring?
a) Phenotype
b) Genotype
c) Allele
d) Gene