Regulatory proteins control the cell cycle.
If the regulatory proteins are malfunctioning or absent, the cells may reproduce abnormally fast, causing a tumor.
The answer that i'd go with is A.Sunlight
Hope i helped
Light dependent reactions require an actual source of light, and this is from the sun, for energy to carry out the first stage of photosynthesis. They need solar energy to split a water molecule in order to obtain electrons from hydrogen to be used in fueling photosynthesis.
Light independent reactions do not require a light source for energy but rather they use energy that was created by the light dependent reactions to complete the process of photosynthesis in which different carbohydrates for the plant are made.
I<span>t is important for Mendel to study such a large sample of pea plants to determine the probability of inheritance because</span> higher sample size gives more accurate results.
>>>Mendel coined the terms “recessive” and “dominant<span>” in reference to certain traits.One best association to this is is his study about pea plants. According to him, green peas are recessive and yellow peas are dominant.</span>
