Genetics Open-Note Quiz
mitosis
cell division in which the nucleus divides into nuclei containing the same number of chromosomes
Meiosis
(genetics) cell division that produces reproductive cells in sexually reproducing organisms
DNA
A complex molecule containing the genetic information that makes up the chromosomes.
Genes
Chemical factors that determine traits
recessive
An allele that is masked when a dominant allele is present
dominant allele
An allele whose trait always shows up in the organism when the allele is present.
Hybrid
An organism that has two different alleles for a trait
Homozygous
An organism that has two identical alleles for a trait
Genotype
An organism's genetic makeup, or allele combinations.
phenotype
An organism's physical appearance, or visible traits.
traits
Characteristics that are inherited
Heredity
Passing of traits from parents to offspring
Genetics
The scientific study of heredity
heterozygous
having two different alleles for a trait
alleles
the letters that represent different forms of a gene