12. what evidence suggests that proteins are synthesized and modified in the rough er as opposed to the
smooth er?
a. ribosomes are associated with the surface of the rough er.
b. ribosomes are associated with the surface of the smooth er.
c. proteins can be found in the membrane of the rough er but not the smooth er.
d. the smooth er functions in the synthesis of phospholipids.

a. ribosomes are associated with the surface of the rough ER.

Explanation: Ribosomes are made of proteins and ribonucleic acid in almost equal amounts. It comprises of two sections, known as subunits. Hence rough ER is involved in protein synthesis because of the attached ribosomes.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

acceleration = 18/3 = 6 m/s per second.

hope i

-lavira: )