Shortcut #1
A) confirm that the nucleotide sequences are known for most molecules of DNA.
B) counter the claim that the sequences of bases along a chain can occur in any order.
C) support the claim that the phosphate-sugar backbone of the authors’ model is completely regular.
D) emphasize how one chain of DNA may serve as a template to be copied during DNA replication
A) confirm that the nucleotide sequences are known for most molecules of DNA.
D) emphasize how one chain of DNA may serve as a template to be copied during DNA replication
A) controversial and threatening.
B) weighty and unanswerable.
C) momentous and pressing.
D) provocative and mysterious.
A) controversial and threatening.
Which choice best states the main purpose of the text?
Skill #23
A) To discuss von Ahn’s invention of reCAPTCHA
B) To explain how digital scanners work
C) To call attention to von Ahn’s book-digitizing project
D) To indicate how popular reCAPTCHA is
A) To discuss von Ahn’s invention of reCAPTCHA
C) To call attention to von Ahn’s book-digitizing project
A) It creates a detailed image of the physical setting of the scene.
B) It establishes that a character is experiencing an internal conflict.
C) It makes an assertion that the next sentence then expands on.
D) It illustrates an idea that is introduced in the previous sentence.
B) It establishes that a character is experiencing an internal conflict.
Which choice best describes the function of the underlined sentence in the text as a whole?
Skill #20