The exons of a gene are always expressed in a functional protein
Indicate whether the statement is true or false
FALSE
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The key specializations that occurred in the evolution of mammals include all of the following except
A. warm-bloodedness. B. the presence of a placenta in most. C. different teeth suited to their diet. D. digestive tract specialization. E. reduction in brain size.
Pure water is most dense at a temperature of:
1.6oC 2.4oC 3.2oC 4.0oC
In radishes, red and white are the pure-breeding
colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval. The cross of a white oval and a purple oval will produce more a. red long than white long. b. purple round than white long. c. purple oval than purple long. d. purple long than purple round. e. purple round than white oval.
Why does it make sense that many fruits are green when their seeds are immature?
A) Insects, which see the color green better than mammals do, can only carry seeds when they are small (immature). B) Animals know that green fruits are tasty, and are more likely to eat them. C) Green signifies less nutritive value. D) They are green because fruits with immature seeds are still capable of photosynthesis. E) They are harder to see and thus less likely to be eaten than other fruits.