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Review of Genetics
A short review on history, terminology, and ideas in the study of genetics.
| Question | Answer |
|---|---|
| Who is the "father of genetics?" | Gregor Mendel. |
| What did he study? | Heredity and genetics, specifically in pea plants. |
| Identify three reasons why he chose this organism. | 1. Peas have traits with 2 alleles (no intermediate forms) 2. Controlled mating (plants have both male and female parts) 3. Peas are small, grow easily, mature quickly, and produce offspring quickly. |
| What is a true-breeding organism? | An organism's offspring that displays only one form of a particular trait, like a purebred. |
| What is the P generation? | Parents. |
| What is the F1 generation? | 1st set of offspring. |
| What is the F2 generation? | 2nd set of offspring. |
| What is the difference between heredity and genetics? | Heredity is the passing of traits from parents to offspring. Genetics is the study and focus of heredity. |
| What is an allele? | A different version of a gene. Example: T = dominant = tall, t= recessive = short |
| What is a genotype? | A genotype is the actual set of alleles. |
| What is a phenotype? | A phenotype is the description of the physical appearance of a trait. |
| What is cross pollination? | Cross pollination is when 1 plant fertilizes another plant. |
| What is self-pollination? | Self-pollination is when the plant is able to pollinate itself without the need for another plant. |
| Name the three types of genotypic possibilities. | Example: PP, Pp, pp. |
Created by:
mma129
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