Which of the following statements about topographic maps is false? A. Elevations are found on topographic maps
B. We can use topographical maps through the use of contour lines.
C. Topographic maps show the elevation through the use of contour lines.
D. When contour lines are close together the slope is gentle or flat.

Elevations are found on topographic maps.

Explanation:

Topographic maps use isoline lines to represent elevation. These maps are useful for construction and hiking trails. Hope this helps :)

The correct answer is - A. Tight DNA packing tends to promote gene expression.

Explanation:

Euchromatin which is less packed or condensed is highly expressed as it participates in the transcription whereas highly compacted chromatin - heterochromatin not expressed at all as these does undergoes the transcription process.

DNA binds around a core of 8 subunits of Histone protein in a nucleosome in which DNA is negatively charged and histone protein is positively charged protein .

DNA packing decreases its transcription and hence no expression.