In most cells, (mRNA, a protein, DNA) directs the production of a
molecule of (mRNA, a protein, DNA)
which then enters a ribosome. The
ribosome produces the final product, (mRNA, a protein, DNA)
Retroviruses do the opposite. They use the enzyme reverse
transcriptase to use a template of (mRNA, a protein, DNA)
to produce (mRNA, a protein, DNA)

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only

Which direction does the energy flow in this energy pyramid ?

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey