According to the figure, which of the following statements regarding base substi

Question

According to the figure, which of the following statements regarding base substitution mutation rates is FALSE? 1 106 105 2 103 102 101 100 10-1 -1 102 10-1 Genome size (Mb) 10-10-3 100 101 0 Genome size (Mb) Eubacteria Double-stranded DNA viruses RNA viruses Archaea Mammals Invertebrates Single-stranded DNA viruses . Plant Unicellular Eubacteria Archaea eukaryotes Click to view larger image In viruses, base substitution mutation rates increase with increasing genome size. RNA viruses tend to have higher base substitution mutation rates than DNA viruses. O The data shown indicate that mammals have higher base substitution mutation rates than do invertebrate animals. O Among cellular organisms, base substitution mutation rates increase with 2 increasing genome size.

Explanation / Answer

Question 3:
The answer is Frameshift muations.

The addition or deletion of nucleotides in the DNA results the unnatual expression, those are reffered as Frameshift muations.

Quesiton 4:
The answer is decondense chromatin

The DNA is tightly packed at histone regions and condesded regions (also reffered as heterochromatin regions) so, RNA polymease cannot move over those sequnces, so, the gene expression levels relatively low at those regions. As methyl groups inhibits the transcription, the gene expression levels relatively low here too.

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