Which of the Following Descriptions Correctly Identifies the Main Structural

question 53

Multiple Choice

Which of the following descriptions correctly identifies the main structural differences between viruses with envelopes and viruses without envelopes?

• A) Viruses with envelopes have their genetic material enclosed by a layer made only of protein.
• B) Viruses without envelopes have only a phospholipid membrane, while viruses with envelopes have two membranes, the other one being a protein capsid.
• C) Viruses with envelopes have a phospholipid membrane outside their capsid, whereas viruses without envelopes do not have a phospholipid membrane.
• D) Both types of viruses have a capsid and phospholipid membrane; but in the viruses without envelopes, the genetic material is between these two membranes, while in the viruses with envelopes the genetic material is inside both membranes.

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Definitions:

Common Variance

The variance shared by two or more variables, often used in the analysis of variance.

Weighted Average

An average that accounts for the different weights or importance of certain factors or quantities in the dataset.

Sample Variances

Sample variances measure the dispersion or spread of data points in a sample around their sample mean, indicating the degree of variation within the sample.

Expected Value

The long-run average value of repetitions of the experiment it represents, known in statistics as the mean of the probability distribution.