Cystic fibrosis is a recessive gene disorder. the pedigree chart for a family known to have cystic fibrosis is shown below.
picture of chart is attached
what percentage of the offspring either are carriers or have observable disease?
25%
50%
75%
100%
will mark brainliest for first correct !

As a bee feeds upon the nectar produced by a flower, the bee may become coated with the flower's pollen. as the bee flies from flower to flower, some of this pollen may contact a flower's pistil, resulting in pollination. this relationship between the bee and the flower is an example of a. parasitism b. commensalism c. mutualism d. competition