A researcher is looking to create a new form of soybean plant that has a high crop yield and is easy to grow. What are traits that he should select for in this plant (i.e., what traits are particularly attractive for an agricultural crop)?
Select all correct choices.
A. long stems or stalks
B. short stems or stalks
C. long-day plants
D. short-day plants
E. day-neutral plants
B,E
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In taxonomy, family is a more general term than order
Indicate whether the statement is true or false.
Which of the following is true of plant cells?
A) Plant cells may contain chloroplasts. B) Plant cells are always much larger than animal cells. C) Chromosomes are found only in plant cells. D) Only plant cells have a cell membrane. E) The plant cell has no cell wall.
Proteins that react specifically with the chemical structures in the antigen that induced them are called
A. determinants. B. antibodies. C. proteases. D. macroproteins.
Which type of selection will favor the intermediate form of a trait?
a. Sexual selection b. Stabilizing selection c. Mutations d. Disruptive selection e. Directional selection