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Chap. 5 Science
Question | Answer |
---|---|
How many traits at one time did Mendel study? | 1 |
Mendel used ______ instead of observation | scientific method |
Where and when did Mendel live? | In the 1800's in Austria |
He used ________ squares to explain probability | Punnett |
What is inheritance? | the passing of traits from parent to offspring |
What are genes? | Segment of DNA on a chromosome that controls a trait. |
What do genes appear in? | Pairs |
What is an allele? | Alternate expression of a gene |
How do you express alleles? | Big or small letters. (TT, tt, Tt) |
What is a genotype and phenotype? | Geno: actual genetic makeup of an organism Pheno: physical description of a trait |
What is the principal of dominant and recessiveness? | The dominant allele masks the recessive one |
When does crossing over occur? | During Meiosis |
What is a parental and filial group? | Parental: Parents Filial: Offsprings |
What is a punnett square? | Used to predict the results of a cross without actually crossing |
Give an example of homozygous dominant, homozygous recessive and heterozygous. | EE ee Ee |
What is a monohybrid? | crosses with one trait |
What is a dihybrid? | Crosses with 2 traits |