Give one piece of evidence that supports the theory that mitochondria evolved from prokaryotic cells. (1 mark)

Size: mitochondria are 2uM in diameter, similar to bacteria. Also applies to genome size and content, suggesting an 'endosymbiosis' event.

LM

Related Biology A Level answers

All answers ▸

A guanine is swapped for a thymine in a gene sequence. Explain how this may alter the function of the protein it translates.


Describe the events which normally occur between the arrival of an action potential at the synaptic knob and its transmission across a neuromuscular junction.


Describe and explain the events that occur in full contraction of the heart


Describe the similarities and differences between the structure of ATP and a DNA nucleotide