Crops that are resistant to the herbicide Roundup ____
a. express the enzyme degraded by Roundup at high levels so that not all of the enzyme is inhibited
b. have an extra coating outside their cell wall that inhibits Roundup from entering the cells
c. contain a bacterial version of the chloroplast enzyme inhibited by Roundup
d. produce a compound that degrades Roundup
e. do not have the membrane channels through which Roundup enters the plant
ANSWER: c
You might also like to view...
Which of the following represents the correct sequence of events in parasexual reproduction?
A. plasmogamy, karyogamy, mitotic recombination, chromosome loss B. karyogamy, chromosome loss, mitotic recombination, plasmogamy C. chromosome loss, plasmogamy, karyogamy, mitotic recombination D. karyogamy, plasmogamy, mitotic recombination, chromosome loss E. plasmogamy, chromosome loss, mitotic recombination, karyogamy
In the polymerase chain reaction, what is the purpose of the initial high temperature? What is the purpose of cooling in the second step?
What will be an ideal response?
Which of Mendel's laws is represented by the following statement: Alleles of each homologous pair separate independently during gamete formation?
a) Law of segregation b) Law of thermodynamics c) Law of independent assortment d) Law of conservation
In the pine life cycle, when does fertilization often take place?
a. a few days before pollination b. at the same time as pollination c. a few weeks after pollination d. months to a year after pollination