Which of the following about Bt crops is true?
A) They are GM plants that incorporate the gene for producing a potent bacterially produced insecticide.
B) They produce chemicals that interfere with the molting of insect pests.
C) They should always be planted in pure stands to reduce the chance of Bt resistant pests.
D) They produce chemicals that are similar to insect pheromones, interrupting pest mating cycles.
Question 2
Which of the following most accurately indicates the recent changes that have occurred in China?
A) As the Chinese economy has grown, industrial pollution and poverty have increased while literacy and public health have declined.
B) As the Chinese economy has grown, the uses of coal and electricity have increased while social mobility and literacy have declined.
C) As the Chinese economy has grown, literacy and public health have improved while industrial pollution and poverty have declined.
D) As the Chinese economy has grown, industrial pollution and literacy have increased while poverty and public health have declined.
Convergence among tropical alpine plants: (a) Senecio trees on Mount Kilimanjaro, Africa
A Controlled Cross between Two Plants
Plants
Plants
Some possible allele arrangements and gene sequences in a heterozygous female
Effects of Ac and Ds elements on gene expression