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my vocab
Term | Definition |
---|---|
heredity | The passing of physical characteristics from parents to offspring |
trait | Form of characteristic such as stem or seed color, is a trait |
genetics | The scientific study of heredity |
fertilization | a new organism begins to form when egg and sperm join in the process of fertilization |
purebred | A organism is the offspring of many generations that have the same trait |
gene | A factor that controls a trait |
Alleles | The different forms of a gene |
dominat allele | Trait always shows up in the organism when the allele is present |
recessive allele | Hidden whenever the dominat allele is present |
Hybrid | a organism has two diffrent alleles fro a trait |
probability | to predict the results of a particular event. |
punnett square | is a chart that showes all the possible combinations of alleles that can result from s genetic cross |
phenotype | Its physical appearance, or visible traits. |
genotype | its genetic makeup, or allele combinations |
homozygous | an organism that has two identical alleles for a trait is said to be homozygous for that trait |
heterozygous | two diffrent alleles for a trait |
codominance | an inheritance pattern |
meiosis | the process by wich the number of chromosomes is reduced by half to form sex cells sperm and egg |
messenger RNA | copies the coded message from the dna in the nucleus , and carries the message to the ribosome in the cytoplasm |
transfer | carries amino acids to the ribosome and adds them to growing protein |
mutation | change in gene or chromosome |