What step did Mendel take to be sure that his pea plants did not self-pollinate? .
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Which type of genetic factor can hide or mask another genetic factor?
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When a plant self-pollinates and all offspring have the same trait as the parent, it is called.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Which best describes the difference between internal and thermal energy?