Viruses:
a. Consist of only a single cell
b. Are smaller than cells
c. Consist of multiple cells
d. Contain a nucleus
e. Contain ribosomes
Answer: b. Are smaller than cells
You might also like to view...
Where is extranuclear DNA located in mammalian cells?
A. Endoplasmic reticulum B. Mitochondria C. Ribosome D. Plasma membrane
High Temperature Short Time (HTST) pasteurization method involves holding of the milk at 72o C for at least 15 seconds
a. true b. false
Sponges acquire food by ________ as water passes through
Fill in the blank(s) with correct word
In 1928, Frederick Griffith's experiments with Streptococcus pneumoniae suggested that
A) bacteria do not incorporate the DNA of other bacteria. B) attenuated R (rough) bacteria easily revert to the wild type (virulent). C) RNA was the genetic material. D) heat-killed bacteria could somehow "transform" live bacteria. E) protein was the genetic material.