The development of induced pluripotent stem cells would make possible therapeutic cloning without the use of embryos
Indicate whether the statement is true or false
TRUE
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Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. This switch in function is an example of a(n) ________
A) paedomorphosis B) an analogy C) an adaptation D) exaptation
In the process of DNA replication, adenine will pair with
A. guanine. B. cytosine. C. thymine. D. uracil.
A cuboidal shaped cell with six sides is 1 mm × 1 mm × 1 mm. What is the volume and the surface area of the cell?
A. 3 mm3 : 3 mm2 B. 1 mm3 : 3 mm2 C. 3 mm3 : 1 mm2 D. 1 mm3 : 6 mm2
Which of the statements below about intermediate filaments is false?
(a) They can stay intact in cells treated with concentrated salt solutions. (b) They can be found in the cytoplasm and the nucleus. (c) They can be anchored to the plasma membrane at a cell–cell junction. (d) Each filament is about 10 ?m in diameter.