What did rosalind franklin do for the discovery of dna?
finding that dna was nucleic acid made up of a long chain of individual nucleotides. producing images of dna molecules using x-rays.
figuring out that dna strands form a double helix.
conducting experiments that showed which nucleotides are complementary.

Which is it a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy?