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Chap. 5 Science

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
Created by: 16esmith