A brown-eyed man marries a blue-eyed woman. They have four children, two with brown eyes, and two with blue eyes. What are the genotypes of all these people?

bb, bb, Bb, Bb

Explanation:

Brown eyes are a domininat (B) gene whilst blue eyes are recessive (b). In order for the children to have blue eyes, both parents must contain the recessive genes for blue eyes. This means that the father had mixed genes (Bb) for blue and brown eyes but due to the dominant brown gene has Brown eyes. The mom has blue eyes meaning that she has the recessive gene pair for blue eyes (bb). When the pair's genes are mixed. Bb+bb. Mendelian gene crossing occurs and the offspring have a 1:2 chance of inheriting either blue or brown eyes due to the gene mixture that resutls and is shown in the answer above.

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.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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