8. In fruit flies, red eye color (R) is dominant and white eye color (r) is recessive. The allele for eye
color is carried on the X-chromosome. Which cross would most likely produce
50% white-eyed
males and 50% red-eyed females?
O XX X XRY
O XRXR x XRY
XRX" x XY
O XRYR Xry

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

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