104 105 102 100% 10% 1% 2 10\" 10 10-1 C 10-2 10-3 104 10-5 Land plant nuclear g

Question

104 105 102 100% 10% 1% 2 10" 10 10-1 C 10-2 10-3 104 10-5 Land plant nuclear genome Animal nuclear genome Unicellular eukaryote nuclear genome Prokaryote Eukaryotic DNA virus Bacteriophage 10-3 10-2 10-1 10° 10' 10% 10% 104 Genome size (Mb) Evoiuton,e Figure 10.3 o 2012 w. w. Norton & Company, Inc. a) OSpecies with small deleterious mutations that lation sizes tend to have large genome sizes due to the fixation of slightly the amount of noncoding DNA in the genome b) OGenome size is determined by the fraction of a genome that contains coding sequenoe

Explanation / Answer

Genome size is the length or amount of DNA present in one copy of the genome. Genome sizes is not solely determined by the coding sequence (sequence that encodes for a protein). Usually large genomes consists mostly of sequences that does not encodes for any protein (non coding), this consists of introns, Untranslated regions, repititive DNA sequences, pseudogenes, non-coding RNAs. These non-coding sequences are believed to have arose due to accumulation of mutations. This non-coding DNA constitutes major part of the genome.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.