How can analysts determine the freshness of a blood sample

What best explains the inability for life to exist in earth early atmosphere

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds? first generation y y y yy yy y yy yy second generation y y y yy yy y yy yy there is a % chance that the offspring will have green seeds.

What monomers build nucleic acid? how many are there?