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Science Hereditary notes
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19
Science
7th Grade
01/04/2012

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Term
the passing of traits from parent to offspring
Definition
hereditary
Term
what controls the traits that show up in an organism?
Definition
genes on chromosomes
Term
what are the different forms of a trait that a gene has?
Definition
alleles
Term
What happens during meiosis?
Definition
a pair of chromosomes separates and the alleles move into separate sex cells
Term
Each sex cel contains how many allele for each trait?
Definition
1
Term
What is the study of how traits are in herited?
Definition
genetics
Term
Who is Gregor Mendel?
Definition
father of genetics
Term
What did Gregor Mendel do?
Definition
Was the first to use mathematics of probability to explain hereditary and trace one trait for several generations
Term
receives different genetic information for a trit from each parent
Definition
hybrid
Term
covers up of dominates the other trait
Definition
dominant allele
Term
recessive allele
Definition
the trait seems to disappear
Term
What hels predict the chance that something will happen?
Definition
probability
Term
What can a Punnett Square do?
Definition
help you predict what an offspring will look like
Term
uppercase letters stand for...
Definition
dominant alleles
Term
lowercase letters stand for...
Definition
recessive alleles
Term
the genetic makup of an organism
Definition
genotype
Term
an organism with two alleles for one trait that are the same
Definition
homozygous
Term
what are heterozygous?
Definition
an organism with two alleles for one trait that are different
Term
the way an organism looks and behaves as a result of its genotype
Definition
phenotype
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