Question2 1 pts According to the figure, which of the following statements regar

Question

Question2 1 pts According to the figure, which of the following statements regarding base substitution mutation rates is FALSE? 107 10 10' 10' 1% 10 103 89 10 10° 10-1 10° 10-1 1010 1010 1010 10 10 Genome size (Mb) Genome size (Mb) Eubacteria Archaea Marmmals Plant Eubacteria e Archaea Invertebrates DNA viruses RNA viruses DNA viruses eukaryotes Click to view larger image. In viruses, base substitution mutation rates increase with increasing genome size. ' Among cellular organisms, base substitution mutation rates increase with increasing genome size.

Explanation / Answer

option first is wrong because you can see in viruses base substitution rate decreases with the increase in the genome size. ( for DNA viruses and RNA viruses both).

option II is wrong because cellular organisms based substitution rate is also decreasing with the increase in genome size.

option third is also wrong because here we don't have any data regarding vertebrate and invertebrate. So we cannot compare in this parameter.

option fourth is correct.

in the diagram you can see that here two kind of viruses are given. one group within RNA genome and another with DNA genome. So comparative study between the RNA viruses and DNA viruses give the idea that RNA viruses have more weight of base substitution is compared to DNA viruses. hear in option fourth any discussion about genome size is not given so we cannot say about the genome.

That is why option IV is right

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