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-Genetics
Life Science-Genetics Unit
| Definition | Term |
|---|---|
| Rod-shaped structures that DNA is organized into | Chromosomes |
| A portion of DNA that controls the characteristics of an offspring | Gene |
| The passing of traits from parent to offspring | Heredity |
| A characteristic of an organism | Trait |
| The trait that is always expressed if the gene is present. It can hide a Recessive trait. (Uppercase Letters) | Dominant Trait |
| The trait that is not always expressed. It recedes into the background when a Dominant Trait is present. (Lowercase Letters) | Recessive Trait |
| Different forms of the same gene, usually two, one from each parent | Allele |
| The inherited combination of alleles, represented by letters (like TT, Tt, tt) | Genotype |
| The physical appearance of a trait (like tall or short) | Phenotype |
| When the two alleles an organism has are the same (TT,tt) | Homozygous (Pure Bred) |
| When the two alleles an organism has are different (Tt,tT) | Heterozygous (Hybrid) |
| When neither gene in a gene pair hides the other | Incomplete Dominance |
| A change in DNA which may result in a change in the organism | Mutation |
| A tool used to predict the probability of the outcome of a genetic cross | Punnett Square |
| The chromosomes that carry the genes that determine the gender | Sex Chromosomes |
| A set of chromosomes that contain the same types of genes and are roughly the same size-similar but not identical | Homologous Chromosomes |
Created by:
1017776
Popular Science sets