Which of the following would, if it had acted upon a gene, prevent this gene from acting as a reliable molecular clock?

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#Question id: 17282

#Unit 9. Diversity of Life Forms

Which of the following is a land plant that produces flagellated sperm and has a sporophyte-dominated life cycle? 

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#Question id: 17283

#Unit 9. Diversity of Life Forms

The structural integrity of bacteria is to peptidoglycan as the structural integrity of plant spores is to__

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#Question id: 17284

#Unit 9. Diversity of Life Forms

Which kind of plant tissue should lack phragmoplasts? 

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#Question id: 17285

#Unit 13. Methods in Biology

If the arithmetic mean of the data given below is 28, 

The median of the series is  

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#Question id: 17286

#Unit 13. Methods in Biology

Consider the following grouped frequency distribution :

 

What is the median of the distribution ? 

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#Question id: 17287

#Unit 13. Methods in Biology

Consider the following grouped frequency distribution : 

What is mean deviation about the median ?