If a tt is crossed with att plant what is the chance that a tt offspring will be produced

Which codon is the code for the amino acid histidine (his)?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

Which of the following typically characterizes a tropical rainforests