Answer:
Two groups of proteins, called cyclins and cyclin-dependent kinases (Cdks), are responsible for the progress of the cell through the various checkpoints. Cyclins regulate the cell cycle only when they are tightly bound to Cdks.
Explanation:
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Albinism is caused by a genetic mutation in organisms. There could be two parents who have the regular number of cellular reproduction but still develop or produce an offspring that has this genetic anomaly. Albinism is caused by a defect in the melanin production of skin cells in organisms which causes little or no color on the pigments of the skin, hair, and eyes of affected organisms. All credit goes to PinkFloyd for this answer
The importance of space rovers is that they help researchers on other planets for example samples of dust, rocks, pictures (basically get information). Some rovers can also transport members of a spaceflight crew.<span />
Answer:
The nervous system regulates breathing and heartbeats but it's also responsible for regulating the core temperature of the body. So when conditions are too warm or hot and body temperature rises, the blood vessels can dilate causing heat loss. Nerves can trigger sweat glands to release fluid that evaporates and cools the skin so that body temperature begins to lower to a normal condition.