Answer the following statements true (T) or false (F)
1. The plant hypersensitive response is one in which the plant is unable to defend itself against a pathogen.
2. Generally plants are unable to produce chemicals that travel throughout the plant to protect against pathogens; most defense is only in localized areas.
3. When scientists breed for genes for resistance to pathogens or herbivores they are usually limited to making mutations for this to happen.
4. Cytokinins are transported through the xylem to meristems where they aid in cell elongation.
1. FALSE
2. FALSE
3. FALSE
4. FALSE
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The ability of a cell to pick up DNA from it's environment is known as ________
a. binary fission b. transformation c. horizontal gene transfer d. conjugation e. mitosis
Which structure forms the main stem of Chara?
a. rhizoids b. stipulodes c. thallus d. cortex
In a simple Mendelian monohybrid cross, true-breeding tall and short plants are crossed, and the F1 plants, which are all tall, are allowed to self-pollinate. What fraction of the F2 generation are both tall and heterozygous?
a. 1/8 b. 1/4 c. 1/3 d. 2/3 e. 1/2
The nation-state is a(n):
A) independent entity whose territory consists of a city which is not administered as part of another local government. B) international actor having a ruling authority, citizens, and a territory with fixed borders. C) sovereign state which is viewed as comprising of two or more nations. D) sovereign state having a very small population or very small land area, but usually both.