PDF chapter test TRY NOW

Analyse the two statements and choose the correct option:
 
Note: For some questions, more than one answer is right.
  
1. Statement 1: Some chromosomes have primary constriction at any point along their length. They are referred to as the nuclear zone.

Statement 2: The primary constriction is the point where the two arms of a chromosome meet.
 
2. Statement 1: The amount of adenine in DNA is always equal to the proportion of guanine.

Statement 2: The proportions of guanine and cytosine are always unequal.