Which of the following best explains why a robertsonian carrier may have no health problems due to his or her chromosome rearrangement?
a. genes on the lost p arms can be found elsewhere in the genome.
b. there are no genes found on any of the p arms of acrocentric chromosomes.
c. all acrocentric p arms contain the same base sequence.
d. the long q arm chromosome copies the genetic information from the p arms before they are lost.

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.

A) the sequence of bases would halt the production of any proteins. 

Any choices to answer !