Scientists find a particle only visible with an electron microscope and is the shape of a soccer ball. The particle is non-cellular but has a DNA core. The core is enclosed in a protein coat and the coat has spike-like projections all over its surface. This must be a(n) .....

CELL THEORY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Scientists find a particle only visible with an electron microscope and is the shape of a soccer ball. The particle is non-cellular but has a DNA core. The core is enclosed in a protein coat and the coat has spike-like projections all over its surface. This must be a(n) ____

A	archaebacteria
B	eubacteria
C	protist
D	virus

Explanation:

Detailed explanation-1: -Ribosomes are only visible with the electron microscope.

Detailed explanation-2: -A scanning electron microscope would be the best choice for viewing very small surface structures of a cell.

Detailed explanation-3: -When it comes to biology, Microscopes are important because biology mainly deals with the study of cells (and their contents), genes and all organisms. Some organisms are so small that they can only be seen by using magnifications of 40x-1000x, which can only be achieved with the use of a microscope.

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AP BIOLOGY

THE CELL

CELL THEORY