Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science Unit D-2
| Term | Definition |
|---|---|
| gene | a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring. |
| genetics | the study of heredity and the variation of inherited characteristics. |
| inherited trait | a trait that a person gets from a parent or grandparent |
| acquired trait | characteristics that are gained by an organism after birth as a result of external influences or its own activities that change its structure or function and cannot be inherited |
| trait | a distinguishing quality or characteristic, typically one belonging to a person. |
| mutation | the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations |
| allele | one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome |
| dominant | most important, powerful, or influential |
| recessive | that one of a pair of alternative alleles whose effect is masked by the activity of the second when both are present in the same cell organism. |
| homozygous | if you're homozygous, you've got a pair of matching alleles, which are the two genes that control a particular trait |
| heterozygous | the genetics term heterozygous refers to a pair of genes where one is dominant and one is recessive — they're different |
| phenotype | the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment |
| genotype | the genetic constitution of an individual organism |
| chromosome | a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes. |
| cell division | the division of a cell into two daughter cells with the same genetic material. |
| DNA | the fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable |
| co-dominant | a relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. |
| incomplete dominance | refers to a genetic situation in which one allele does not completely dominate another allele, and therefore results in a new phenotype |
Created by:
cpowalski85
Popular Science sets