Which of the following is NOT a component of DNA?
Ans: c. ?uracil
You might also like to view...
Genetic information in DNA and RNA is stored as a sequence of three nucleotide bases. On DNA a group of three nucleotides is called a _____, while on the complementary strand of mRNA, this sequence is called a ____ .
a) genome / proteome b) intron / exon c) base triplet / codon d) codon / anticodon e) base triplet / anticodon
How does the evidence for the theory of common descent demonstrate consilience?
A) scientific evidence is refuted by other scientists B) new evidence can be added to the theory of common descent C) observations driven from different sources agree on the findings. D) new evidence cannot be added to the theory of common descent
During cell division the progeny of a trypanosome express a different VSG gene than their parents. Why is this done?
A. VSG genes inhibit phagocytosis. B. To signal endocytosis of the parasites C. VSG genes activate photoheterotrophy. D. To hide from the host's immune system
The ________ model proposes that when life originated, key chemical processes generating the building blocks of life were contained in a spherical structure.
Fill in the blank(s) with the appropriate word(s).