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4.1 science
science vocabulary 4.1
Question | Answer |
---|---|
passing of physical characteristics from parent to offspring | heredity |
a characteristic that an organism can pass on to its offspring through its genes | trait |
scientific study of heredity | genetics |
the joining of a sperm and an egg | fertilization |
the offspring of many generations that have the same traits | purebred |
the set of information that controls a trait; a segment of DNA on a chromosome that codes for a specific trait | gene |
the different forms of a gene | alleles |
an allele whose traits always shows up when the allele is present | dominant allele |
an allele that is masked when a dominant allele is present | recessive allele |
an organism that has two different alleles for a trait; an organism that is heterozygous | hybrid |