You crossed a true breeding purple flowered true-breeding white flowered. if color in the species you are investigating is inherited as a mendelian trait (like the patterns observed in mendel's peas). what ratio of offspring would you expect in the f2 generation?

Phenotype ratio= 3 purple: 1 white

Genotype ratio= 1 PP: 2 Pp: 1 pp

Explanation:

Let's assume that the dominant allele "P" impart purple color to the flowers while the recessive allele "p" is responsible for the white color of flowers. The genotype of the true breeding purple-flowered plant would be "PP" and that of the true breeding white-flowered plant would be "pp".

A cross between them would produce F1 progeny with genotype "Pp". All the F1 progeny would have purple flowers. A cross between two F1 (Pp x Pp) would obtain F2 generation in the following ratios:

Phenotype ratio= 3 purple: 1 white

Genotype ratio= 1 PP: 2 Pp: 1 pp

paper covers rock.

explanation:

rock only smashes scissors.

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.