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17SJT Genetics
From Yellow Paper & Stuff
Term | Definition |
---|---|
TRAIT | A characteristic, such as seed color. |
HEREDITY | The passing of traits from parents to offspring. |
GENETICS | The study of heredity. |
PUREBRED | Always produces offspring that have the same trait. |
GENES | The factors that control traits. |
ALLELES | The different forms of a gene. |
DOMINANT ALLELE | Always shows up in an organism. |
RECESSIVE ALLELE | Is hidden whenever a dominant allele is present. |
HYBRID | Has two different alleles for a trait. |
PHENOTYPE | The way an organism looks. |
GENOTYPE | The genetic makeup of an organism. |
HOMOZYGUOUS | An organism that has two of the same alleles for a trait (PUREBRED). |
HETEROZYGUOUS | An organism with two different alleles for a trait (HYBRID). |
ACQUIRED TRAIT | A trait that an organism develops after it is born. |
EXAMPLE OF ENVIRONMENTAL TRAIT | Flamingos are pink because they eat pink food. |
EXAMPLE OF LEARNED TRAIT | The ability to ride a bike. |
EXAMPLE OF MANIPULATED TRAIT | Coiled bamboo. |
CHROMOSOMES | Rod-shaped structures formed by DNA. |
GAMETE | The human reproductive cell. |