Which of the following properties of RNA is most directly responsible for its ability to form complex shapes?
A) the presence of uracil instead of thymine
B) the fact that RNA is primarily double-stranded
C) the relative instability of RNA compared to DNA
D) the fact that RNA is primarily single-stranded
E) the substitution of deoxyribose in DNA with ribose in RNA
D) the fact that RNA is primarily single-stranded
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The two basic structural forms taken by most viruses are ____
a. polyhedral or enveloped b. helical or enveloped c. helical or polyhedral d. cylindrical or polyhedral e. cylindrical or enveloped
What is a hydrophobic region?
What will be an ideal response?
Ultraviolet lights placed in a patient exam room can help disinfect surfaces
Indicate whether the statement is true or false
Which of the following helps maintain the structure of chromosomes and control the activity of genes?
A) the nuclear membrane B) proteins C) centromeres D) ribosomes