Which of the following statements best describes the major difference between metaphase i of meiosis and metaphase of mitosis? (2 points) in metaphase i, tetrad sets of homologous chromosomes stay together as they line up along the center of the cell. in metaphase, homologous chromosomes are separated as each sister chromatid set is pulled to one end of the cell. in metaphase, sister chromatids are separated and pulled apart to form a total of four new haploid cells. in metaphase i, sets of sister chromatids line up at the center of the cell and the spindle fibers pull them apart.

Alichen is an organism that structurally appears to be a single organism. but a lichen is actually two different organisms—a fungus and green algae—living together as one organism. the fungal partner derives its nutrition from the photosynthesizing algae. how does a lichen differ in its photosynthetic activity from elysia chlorotica, the sea slug that’s considered to be a photosynthesizing animal? a. in lichens, the fungi photosynthesize on their own, while elysia chlorotica forms a relationship with a photosynthesizing plant. b. in lichens, the relationship with the algae lasts throughout the life cycle, but in elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slug’s life cycle. c. lichens can photosynthesize only because of the living algal partner, while elysia chlorotica incorporates chloroplasts from algae into its cells. d. in lichens, the association between the fungi and algae is permanent, while elysia chlorotica associates with a photosynthesizing organism only when it requires food.

What is the mrna strand that would be copied from this dna strand

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)