2. a tall plant (tt) is crossed with a short plant (tt) if the fall f1 pea plants are allowed to self pollinate, a. the offspring will be of medium height b. all of the offspring will be tall c. all of the offspring will be short d. the offspring can be tall or short

The correct answer is D. the offspring can be tall or short

In a given cross, F1 pea plants are hybrid tall or heterozygous tall (Tt). If F1 plants are allowed to self-pollinate, as a result tall and short pea plants are formed in the ratio 3:1 respectively. This result obeys Mendel’s law of segregation which states that allele pairs separate or segregate during gamete formation, and randomly unite at fertilization.

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this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.