The two strands in DNA are coiled _ to each other.
Correct answer: C. Antiparallel
- A. Parallel
- B. Both A, C
- C. Antiparallel
- D. None of these
Explanation
Coiling of two strands is opposite i.e they are coiled antiparallel to each other.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Structure of DNA
DNA structure includes nucleotides made of deoxyribose, phosphate and nitrogenous bases, arranged in two antiparallel polynucleotide strands. Questions cover the double helix, phosphodiester and hydrogen bonds, complementary base pairing between adenine and thymine and between guanine and cytosine, and the significance of major and minor grooves.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Structure of DNA questions
How many Hydrogen bonds are there in a Cytosine-Guanine pair?
The chemical formula for deoxyribose sugar is:
To prove DNA replication is semi conservative Meselson and Stahl labelled DNA with N15, DNA sample appeared heaviest which was collected after.
If DNA strand is GCTATGG, then mRNA strand synthesized from it would be:
The reaction between the phosphate group of one nucleotide and hydroxyl group of another is a synthesis in DNA molecule.
Enzyme which attaches the Okazaki fragments in lagging strand is called: