A building block of nucleic acids, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and one or more phosphate groups
What will be an ideal response?
Nucleotide
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Many antibiotics work by inhibiting the synthesis of petidoglycan, a component of the bacterial cell wall. What is a possible mechanism of action for anti-fungal drugs?
A. inhibiting the synthesis of peptidoglycan in fungi B. inhibiting the synthesis of cellulose in fungi C. inhibiting the synthesis of chitin in fungi D. inhibiting the synthesis of lignin in fungi
Evolution by natural selection ________
A) requires that multiple unverified assumptions are made before it can be considered a viable explanation B) is only a theory and therefore not testable C) can be tested experimentally D) can be tested observationally E) Both C and D.
Bacteria:a
are incapable of locomotion. b. move by means of pili c. move by means of cilia. d. move by means of a rotating flagella. e. move by means of a whiplike flagella.
Rosalind Franklin created the first ____.
A. clear x-ray diffraction image of DNA as it occurs in cells B. model of DNA’s nucleotide bases C. experiment to test whether base-pairs differ among species D. hypothesis surrounding the nature of a hereditary molecule E. results proving that bases exist on the outside of a helix