The molecule dna ligase that is used to seal the piece of foreign dna into the vector is

Structures in cells that carry out specific functions.

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Which blood cell spend most of their time in the lymphatic system?