A tetrad consists of 2 homologous chromosomes each of which is made up of 2 sister chromatids
Answer:
A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.
The train traveled 100km (50x2) down and then 375km (75x5) up. So the train is 275km (375-100) up from where it started.
An example i can think of is...
the amount of salt present in human cells cytoplasm suggests we evolved from species in the sea
