During which stage of interphase is DNA replicated?
A) G2
B) G1
C) S
Answer: C) S
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Homeotic genes encode transcription factor proteins that bind DNA. The DNA-binding domain of homeotic proteins is called a ____ , and is a highly conserved region in many homeotic proteins
Fill in the blank with the appropriate word.
What is a simple way for determining if an annelid is a polychaete or a clitellate?
A. The number of segments B. Possession of a closed circulatory system C. The amount of chaetae (setae) D. The layout of the digestive system Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about annelids? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
A vaccine protects by stimulating a person to produce a(n) ________ response when a pathogen is encountered.
A) primary immune B) secondary immune C) tertiary immune D) anaphylactic
Flatworms are
a. acoelomate b. coelomate c. pseudocoelomate d. parazoans e. incredible athletes