In humans, colorblindness is sex linked and recessive. If a woman is a carrier for the trait, what is the chance that her sons will be colorblind? Her daughters? (Assume their father has normal vision.)

50% for sons 0%for daughters

Explanation:

the genotype of the mother is X⁻X

the genotype of the father is XY

the gametes from the mother are X⁻ andX

the gametes from the father are X and Y

to find the chance we make a Punnet square and cross each gamete

1 of the 2 males has the gene for colorblindness so there is a 50% chance that the son will be colorblind

1 of the 2 daughters has the gene for cloroblindness but only in one exemplary so the chance is 0%

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.