Answer:
the science of breeding and caring for farm animals.
Explanation:
The purpose of a presumptive test is to see which substance the sample is.
At the smallest level of organization, the DNA wraps itself around small globular proteins called histones. Complexes of histones and DNA form nucleosomes, which appear as "beads" on the DNA strand. Chromatin refers to the decondensed DNA that has not formed separate chromosomes.
Answer:
el nucleo ... las celulas tienen un nucleo ñas cuales las dirige por asi decirlo
