a Greek philosopher who was one of the first people to classify organisms
two word naming system developed by Linnaeus
an individual who has the gene for a genetic disorder but does not express the trait
the exchange of corresponding pieces of DNA between like (homologous) chromosomes
molecule that contains the information needed by a cell to direct its activities and determine its characteristics
sex cells which are produced during the process of meiosis
an organism's genetic make-up or allele combination- its "letter" code Example : Tt
first word of a scientific name
concluded that traits (genes) are inherited through the passing of factors (genes) from parents to offspring
an organism with different alleles for a trait, represented by one upper-case letter and one lower-case letter
a chart showing pairs of chromosomes
first scientist to give species a 2-word scientific name
produces four new genetically different cells that have half the number of chromosomes that an organism's body cells have
chromosomes line up in the "middle"
a family record that shows how a trait is inherited over several generations
an organism's physical characterictics or visible trait. Example: tall
reproductive cell (sperm, egg)
contains half the chromosomes
found on the 23rd pair of chromosomes
the identification and classification of organisms
used to indicate a dominate allele in Punnett squares
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