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Study Sesh for the Meiosis Test on 2/17/12


A characteristic that an organism can pass on to its offspring through its genes


The passing of traits from parent to offspring


The scientific study of heredity


A segment of DNA on a chromosome that codes for a specific trait


The different forms of a gene

Dominant Allele

An allele whose trait always shows up in the organism when the allele is present

Recessive Allele

An allele that is masked when a dominant allele is present


Having two identical alleles for a trait


Having two different alleles for a trait


The likelihood that a particular event will occur

Punnett Square

A chart that shows all the possible combinations of alleles that can result from a genetic cross


an organism's physical appearance or visible trait


An organism's genetic makeup, or allele combination


An organism that always produced offspring with the same form of trait as the parent


An organism that has two different alleles for a trait; An organism that is heterozygous for a trait


A condition in which neither two alleles of a gene is dominant or recessive


A double rod of condensed chromatin; contains DNA that carries genetic information


A picture of all the chromosomes in a cell arranged in pairs


The process that occurs in gametes(sperm and egg) by which the number of chromosomes is reduced by 1/2

What is the difference between Meiosis vs. Mitosis

Meiosis- The division of sex cells (Sperm and Egg)
Mitosis- Division of normal cells (Somatic Cells)

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