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Science test #1

Meiosis-Heredity & Genes

What does homozygous mean? Both alleles are the same. What is a dominant trait? This trait will show up more than the others.
What is a punnet square used for? It is used to show the possibility of the offspiring being a male or female that a couple could have. What is a recessive trait? This trait will show up fewer times than the others.
What are genes? They are instructions for an inherited trait.
What does heterozygous mean? It means that two alleles are different.
What is genotype? It is the genetic make up of an organism; bothe inherited alleles together form the genotype.
What do sex chromosomes do? They determine wether an organism is male or female.
What is a sex linked disorder? It's a disease carried on the X(Dominant) trait.
What is pedigree? It's a diagram that shows the occurence of a genetic trait.
Created by: saywa78