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
Genetics Vocabulary
Genetics & Heredity
| Term | Definition |
|---|---|
| Chromosome | A threadlike structure that contains thousands of genes |
| Gene | A unit of heredity that is transferred from parent to offspring |
| Allele | A form of a gene pair. For example, in the genotype Aa, A is one allele and a is the other |
| Trait | A characteristic determined by genes |
| Heredity | The study of the patterns of genetic inheritance. |
| Genotype | Set of genes that determine a trait (Aa, AA, aa) |
| Phenotype | Observable physical traits of an organism (example: height, hair color, eye color) |
| Heterozygous | One dominant and one recessive allele is present in an individual (Aa) |
| Homozygous | Two dominant or two recessive alleles are present in an individual (AA or aa) - also called “Purebred” |
| Dominant Trait | A trait that is expressed even if only one copy of the allele is present |
| Recessive Trait | A trait that is expressed if only two copies of the allele are present |
| Purebred | Offspring that result in the same phenotype as their parents |
| Hybrid | Offspring from parents that differ in genetically determined traits |
| Inherits | The process by which genetic information is passed from parent to offspring |
| Offspring | The product of the reproductive process. |
| Generations | The individuals produced at each stage of reproduction |
| Budding | A form of asexual reproduction where a new individual grows directly on the parent until fully developed, then releases. |
| Asexual reproduction | Reproduction in which there is only one parent and the offspring is a clone of the parent. |
| Sexual reproduction | Reproduction that involves the fertilization of an egg cell by a sperm cell. There are always two gametes (parents) who pass on their traits to the offspring. |
| Fertilization | The union of 2 gametes to form a zygote in sexual reproduction. |
| Mutations | Any change in the DNA sequence of a cell. May be caused by random chance or environmental conditions. |
| Constant variables | All of the things that you keep the same during an experiment. |
| Dependent variable | The things that you measure during or after an experiment because they are changing. |
| Independent variable | The one thing that you change before (or at the beginning) of an experiment. |
| Punnett Square | A tool used to show the possible genetic outcomes of a cross between 2 organisms for a specific genetic trait. |
| Karyotype | An image of all the chromosomes in a cell. |
Created by:
ecwilkinson
Popular Life Science sets