Read This! A well-written research question states the independent and dependent variables in the experiment.
For example, a student investigated the effect of soil pH on the number of strawberries produced by a .
strawberry plant. Her research question was “How does the pH of soil affect the number of strawberries
produced by a strawberry plant?”
10. Write a research question, using the format suggested in the Read This! box, for the experiment in
Model 2.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

cells spend most of their time in interphase