Structure of DNA
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Biology
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10th - 12th Grade
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Medium
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Who introduced the term 'nucleic acid'?
Maurice Wilkins
Richard Altman
Rosalind Franklin
Erwin Chargaff
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between the sugars in DNA and RNA?
DNA has ribose sugar, RNA has deoxyribose sugar
DNA has deoxyribose sugar, RNA has ribose sugar
Both have ribose sugar
Both have deoxyribose sugar
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a purine base?
Adenine
Uracil
Cytosine
Thymine
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of bond connects adjacent nucleotides in a polynucleotide chain?
Phosphodiester bond
Covalent bond
Ionic bond
Hydrogen bond
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to Chargaff's rules, which of the following is true?
Adenine equals thymine
Adenine equals guanine
Thymine equals guanine
Cytosine equals adenine
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the handedness of the B form of DNA?
Right-handed
Left-handed
None of the above
Ambidextrous
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which form of DNA is favored at low water concentrations?
A form
Z form
None of the above
B form
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