They play an important role in the control system by sensing defects that occur during essential processes such as DNA replication or chromosome segregation, and inducing a cell cycle arrest in response until the defects are repaired.
1. From all those aforementioned, the one that best states a theme of Romeo and Juliet is "<span>Actions in haste can bring about destruction". The answer to your question is D.
2. The statement is </span>dramatically ironic because Friar Lawrence <span>knows that Juliet has fallen into a deep sleep that resembles death. The answer to your question is B.
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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.
Mendel observed that a heterozygote offspring can show the same phenotype as the parent homozygote, so he concluded that there were some traits that dominated over other inherited traits. However, the relationship of genotype to phenotype is rarely as simple as the dominant and recessive patterns described by Mendel.
