Biology can be orginized into a hierarchy Which of the follo

Biology can be orginized into a hierarchy. Which of the following represents the lowest level in such a scheme?

a) Organism

b) tissues

c) nucleus

d) cells

Solution

c) nucleus

Gene is the physical unit of heredity that transmits information from one cell to another and thereby one generation to another. DNA (deoxyribonucleic acid) is a double helical structure; it contains the organism’s genetic information in the genes which lie along the structure of DNA.

Nucleus contains the DNA, which carry the genetic information from one cell to the other and one organism to the other.