ở một gia đình bố mẹ bình thường sinh con trai bị bệnh mù màu . biết bệnh mù màu đó do gen lặn quy định nằm trên nst X. nếu người con trai bị bệnh lấy vợ bình thường nhưng mang gen bệnh thì xác suất sinh con bị bệnh là bao nhiêu. tìm kểu gen đời bố mẹ

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds