Scientists define the boundaries between different layers of the atmosphere based on sudden changes in the temperature vs. altitude and/or pressure vs. altitude graphs. How many layers of the atmosphere can you find?

In a classic experiment using pea shape, mendel conducted two separate genetic crosses. in the first cross the parent plants were “true breeding” for pea shape; one had round peas ( r )and the other had wrinkled (r). the first cross produced a filial 1 generation of all round peas. in the second cross, mendel bred plants from the filial 1 generation. this cross produced different results. out of approximately 1000 plants, about 75% were round and 25% were wrinkled.

Where in the cell are ribosomes made?

Where does the information about where each transcription factor binds originate?