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15 Cards in this Set

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the passing of traits from parent to offspring
heredity
only one parent cell is needed for reproduction
asexual reproduction
the trait observed when at least one dominant allele for a characteristic is inherited
dominant trait
a trait that is apparent only when two recessive alleles for the same characteristic are inherited
recessive trait
the mathematical chance that an event will occur
probability
contains both male and female reproductive structures
self-pollinating plant
segments of DNA that carry hereditary instructions and are passed from parent to offspring
genes
different forms of a single gene
alleles
the inherited combination of alleles
genotype
an organism's inherited appearance
phenotype
an egg (female) or sperm (male); carries half the number of chromosomes found in body cells
sex cells
nuclear division in eukaryotic cells in which each cell receives a copy of the orignal chromosome
mitosis
cell division that produces sex cells
meiosis
used to visualize all the possible combinations of alleles from parents
Punnett Square
proposed that genes are located on chromosomes
Walter Sutton