Which statement is the first step of protein synthesis? A. DNA unzips between the base pairs

B. A new DNA strand is made

C. tRNA carries amino acids to the ribosome and attaches it to the mRNA strand

D. A ribosome attaches to the mRNA

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca