Using Molecular Techniques,researchers Have Knocked Out Both Copies of Gene

question 10

Multiple Choice

Using molecular techniques,researchers have knocked out both copies of gene "G" in a series of genetically identical mouse embryos.These mice develop normally,except for their forelimbs,which are missing several small bones.What can be concluded from the results of this experiment?

• A)Gene "G" encodes a protein that is a crucial component of the forelimbs' small bones in mice.
• B)Gene "G" encodes a protein that is normally only present in the forelimb cells of developing mice.
• C)Gene "G" is necessary for proper development of the forelimbs' small bones in mice.
• D)Gene "G" is normally only present in the forelimb cells of developing mice.
• E)Gene "G" is normally only transcribed in the forelimb cells of developing mice.

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Definitions:

Histogram

A graphical representation of the distribution of numerical data, usually a bar graph, where the data is grouped into ranges or bins and the frequency of data points within each range is depicted.

Median

The middle value in a list of numbers, which separates the higher half from the lower half.

Skewed

A skewed distribution is one where the data points tend to cluster more on one side of the scale than the other, leading to an asymmetric curve with a long tail on one end.

Symmetric

Symmetric in statistics refers to a distribution or data set where the shape on either side of the mean is a mirror image, indicating equal distribution around the center.