During the initiation of nitrogen-fixation nodules, a host plant with genetic mutations releases altered forms of flavonoids. What is the likely consequence of this?
A. Infection threads will grow in the wrong direction.
B. More nodules will form than necessary.
C. The bacteria will not produce any Nod factors.
D. Nodules will be misshapen.
E. The bacterial will produce higher levels of Nod factors.
C. The bacteria will not produce any Nod factors.
You might also like to view...
Which pathway(s) is used to fix carbon dioxide?
A. Entner-Doudoroff B. Reductive tricarboxylic pathway C. Glycolysis D. Pentose phosphate pathway
Which of the following was proposed by Mendel after working with garden pea plants?
a. The physical observation of a recessive trait means that the organism lacks any dominant versions of that characteristic. b. An organism’s dominant traits disappear in the offspring of a hybridization. c. The physical observation of a dominant trait means that the organism has two recessive versions of that characteristic. d. An organism’s dominant and recessive traits blend to form a codominant allele.
Four of the five answers listed below are characteristic of xylem. Select the exception
a. Each vessel is one continuous cell. b. Cell walls contain lignin. c. Water and minerals are transported. d. Tracheids and vessel members are living. e. Cell walls contain pits.
Where does DNA replication occur?
A. Ribosomes B. Rough ER C. Nucleus D. Golgi