Which of the following statements is TRUE? A. Most proteins in the human mitochondrion are encoded...
Which of the following statements is TRUE?
A. Most proteins in the human mitochondrion are encoded by nuclear genes.
B. Heteroplasmy refers to the presence of different alleles in a single organelle.
C. cpDNA evolves faster than nuclear DNA.
D. One piece of evidence supporting the endosymbiotic theory is the extreme similarity between mitochondrial DNAs from different organisms. E. Plants contain chloroplasts, not mitochondria.
Homework Answers
A. Most proteins in human mitochondria are encoded by nuclear genes.
Explanation : mitochondrial DNA encodes proteins by itself but upto some extent the replication apparatus and the transcription factors proteins are encoded by nuclear genome only.
D.
endosymbiotic theory explains that the organalles are originated from the prokaryotes.And the mitochondrial DNA are similar to prokaryotic DNA.
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