A student has a group of corn plants with long stalks, and a group of corn plants with short stalks. She crosses the long stalk and short stalk plants. The resulting generation of corn plants all have short stalks. Based on this experiment, what can the student determine about the alleles for stalk length? A. Short stalks must be recessive, because the short stalk trait was hidden in some of the offspring.

B. Short and long stalks are both dominant, because both traits were present in the parent plants.

C. Short stalks must be dominant, because the short stalk trait covered up the long stalk trait in the offspring.

D. Long stalks must be dominant, because the long stalk trait was present in one of the parent plants.

C. gemstones they are the only non metallic mineral from the list.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein