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Chapter.13.science

QuestionAnswer
What is DNA? The chemical code found in chromosomes that tells cells what to do.
What are genes? Small sections of DNA that determine traits.
What is genotype? The genetic combination or arrangement of genes within an organism.
What is heredity? The passing of traits from parents to offsprings
What is a pedigree? A chart that traces a trait through a family tree.
What is phenotype? The Physical appearance of an organism.
What is a Punnett Square? It shows the possible genetic outcomes for a offspring and helps determine the probability of those outcomes.
What are Traits? characteristics that are inherited fro parents.
What accomplishment did Reginald Punnett have? geneticist who used squares to understand genetic possibilities.
What accomplishment did James Watson and Francis Crick have? THey discovered the shape of DNA molecules
What accomplishment did Gregor Johann Mendel have? Discovered that traits are passed from generation to generation.
What is DNA structured like? a twisted spiral ladder.
What DNA base will A fit with? It will fit with T.
Who is the Father of Genetics? Gregor Mendel
What is a disease from a sex-linked trait? Hemophilia
What is the blending together of some genes called? incomplete dominance
How many chromosomes do most people have? 46
In what disease are some red blood cells hard and curved? Sicle Cell Anemia
What is it called when both dominant and recessive genes are expressed? Incompletely dominant
What does a square represent on a pedigree? A male
What does a circle represent? A female
What do the vertical lines connect? marrige
Created by: dixieann0708
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