Use the Following Information to Answer the Questions Below

question 28

Multiple Choice

Use the following information to answer the questions below.
Spider silk is one of the strongest biomolecules known.It has a tensile strength greater than Kevlar and elasticity greater than rubber.Attempts to "farm" spiders have met with little success (they tend to eat each other) .Researchers have identified the gene responsible for the formation of the silk.
-Plants are more readily manipulated by genetic engineering than are animals because

• A)plant genes do not contain introns.
• B)more vectors are available for transferring recombinant DNA into plant cells.
• C)a somatic plant cell can often give rise to a complete plant.
• D)plant cells have larger nuclei.
• E)plants are easier to infect with virus than other eukaryotic organisms.