Changes in an organism that are the result of changes in gene action(s) are known as
A) diseases.
B) epigenetic.
C) silencing.
D) micro-RNA mediated.
E) all of the above
B) epigenetic.
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The eyes of nocturnal predators are likely to have:
A. a higher concentration of rods than cones B. a higher concentration of cones than rods C. more bipolar cells than those animals that hunt during the day D. more ganglion cells than those animals that hunt during the day
Which scientist(s) discovered the basis for the
base-pair rule, which stated that the amounts of adenine in all DNA are the same, as are the amounts of cytosine and guanine?
a. Watson and Crick b. Beadles c. Chargaff d. Franklin e. Pauling
Respond to statements 113–117 with reference to the five biomes
listed below. a. tundra b. grassland c. desert d. taiga e. savanna M 113. A plant community composed primarily of shrubby trees widely spaced and surrounded by grasses is this biome. M 114. A community composed of herbaceous plants, no trees, a very short growing season, and relatively few animal species is likely to be this biome. E 115. Variable daily temperatures and plants that are highly resistant to desiccation characterize this biome. M 116. This biome has the richest soils. E 117. Conifers are most likely to be found in this biome.
What does tonoplast refer to?
a. the plant nuclear envelope b. the cell wall c. a chloroplast d. the vacuolar membrane