What aspects of the structure of DNA are explained by this model? A. Paired nucleotides are held together by covalent bonds.
B.
Adenine is paired with thymine, and guanine is paired with cytosine.
C. Paired nucleotides are held together by hydrogen bonds.
D. The two strands of DNA each have phosphate-sugar backbones
E. The numbers of each nucleotide determine genetic information

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype