Two cells (a and b) from an embryo in the first trimester of development were examined. the image on the left below shows a southern blot detecting for the presence of a segment of dna. the image on the right shows a northern blot detecting for the rna encoded by that segment of dna:
what is a logical conclusion based on this data?

a. the differential induction of dna transcription suggests the cells are destined to become different tissues.
b. the differential induction of dna transcription suggests the cells utilize the same activator sequence.
c. the lack of transcription of the dna in cell b indicates that cell b has stopped developing.
d. the lack of transcription of the dna in cell b indicates that cell b has undergone apoptosis.

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

Mr. olajuwan was in a horrific snowmobile accident. afterwards he had trouble walking and he had a loss of balance. which of the 4 major brain region was probably demaged

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.