Question

Explain how the meaning of the word fiber differ in the following muscle fiber,nerve fiber and connective tissue fiber

Answer 1

At one point along their length, each chromosome has a constriction , 
called the centromere . The centromere divides the chromosomes into two arms : a long arm and a short arm. chromosomes are numbered from 1 to 22 
and these are common for both sexes and ca
lled autosomes .