How are dna and rna molecules alike?
a) they are both double stranded.
b) they both contain nitrogen bases.
c) their nitrogen bases always pair a - t and c - g.
d) they are found in the nucleus and at the ribosomes.

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred

Anybody know this. a haplontic cycle animal initially reproduces by: mitosis binary fission isogamous fertilization meiosis