SCIENCE
VIRUS AND BACTERIA
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The protective outer part of a virus
|
|
|
contains the instructions for making new viruses
|
|
|
An organism that nourishes a and supports a parasite
|
|
|
None of the above
|
Detailed explanation-1: -Viruses contain either RNA or DNA as their genetic material. DNA in most organisms is a double-stranded structure, based on Watson and Crick pairing; however, in viruses, DNA and RNA can be either single-stranded or double-stranded.
Detailed explanation-2: -All viruses have genetic material (a genome) made of nucleic acid. You, like all other cell-based life, use DNA as your genetic material. Viruses, on the other hand, may use either RNA or DNA, both of which are types of nucleic acid.
Detailed explanation-3: -The viral genome (genetic material) has the instructions, aka genes, to take over the host cell and to build new copies of itself.
Detailed explanation-4: -The molecule inside cells that contains the genetic information responsible for the development and function of an organism. DNA molecules allow this information to be passed from one generation to the next.
Detailed explanation-5: -The nucleus contains genetic (hereditary) material. Genetic material, written in deoxyribonucleic acid (DNA), provides instructions for the cell. All cells contain the same DNA (the same set of instructions), but cell types are different because of different gene expression.