The number of mitochondria per cell varies widely; for example, in humans, erythrocytes (red blood cells) do not contain any mitochondria, whereas liver cells and muscle cells may contain hundreds or even thousands. The only eukaryotic organism known to lack mitochondria is the oxymonad Monocercomonoides species.
Answer:
Guilt, self disgust, senslessness
Explanation:
Boston is plagued by feelings of guilt and self-disgust after the senseless, cold-blooded murder of Gumboot Dhlamini. He wants to know if Tsotsi shares these feelings. Boston asks Tsotsi many questions and this has a profound effect on Tsotsi, who does not remember much of his past.
Answer: One chromosome from each pair belongs to the mother and the other to the father
Explanation: you get half your DNA from your mom and the other half from your dad but they form a pair. you will always get an X from your mom as she has 2 X chromosomes herself and if you are a boy you will get the Y from your dad as he is an XY.