SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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number and type of pollen grains found in a geographical area at a particular time of year.
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number of pollen grains found in a geographical area at a particular time of year
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type of pollen grains found in a geographical area at a particular time of year.
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None of these choices.
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Detailed explanation-1: -A pollen fingerprint is the number and type of pollen grains found in a geographic area at a particular time of year.
Detailed explanation-2: -Pollen “fingerprint” – number and type of pollen grains found in an area at a particular time of year.
Detailed explanation-3: -Morphologically, the investigated pollen grains are mostly prolate-spheroidal, spheroidal or triangular, rarely prolate or elongated, tectum psilate, granulate, reticulate or microechinate.
Detailed explanation-4: -Pollen grains range in size from 10 to 150 m and are protected by a chemically resistant outer layer, the exine. Because pollen grains of many plant families are different morphologically, they can be recognized by their distinct shape, size, sculpturing, and number of apertures (Punt et al., 2007; Figure 12.2).