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All humans have the same ____________. What causes the differences in genetic output and phenotype?
All humans have the same genes, but slightly different sequences
Define gene, simply
Unit of hereditary information passed from parents to offspring, determines characteristics
Biochemical definition of gene
Sequence of nucleotides with different nitrogenous bases, encoding protein or non-coding RNA
What 3 things must a gene have, biochemically?
Beginning, end, regulatory information
Chromosomes occur in _______________ that separate during ___________. This explains Mendel's observations
Matched pairs that separate during meiosis
What is in each chromosome? (a pair of__________)
A pair of homologs
What did Sutton and Boveri discover? (2)
Chromosomes are linear sequences of genes. Inheritance patterns come from genes located in specific sites in chromosomes
Case: a cell contains 4 chromosomes during G1. That same cell would have _______ chromosomes during metaphase I ?
4. Amount of genetic material has doubled (2 sister chromatids per chromosome) but amount of chromosomes remains same.
Note 
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