Which of the following crosses does not follow Mendel's law of segregation? 1. Two tall pea plants (Tt x Tt) are expected to produce some tall offspring plants.

2. Two tall pea plants (Tt x Tt) are expected to produce some short offspring plants.

3. A tall pea plant and a short pea plant (Tt x tt) are expected to produce all tall offspring plants.

4. A tall pea plant and a short pea plant (TT x tt) are expected to produce all tall offspring plants.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

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