The term 'gene' refers to __________?
Correct answer: C. A portions of DNA
- A. A portion of RNA
- B. A linkage group
- C. A portions of DNA
- D. A sequence of Amino
Explanation
A gene is a specific sequence of DNA that contains information for a functional product, such as a protein or functional RNA. The likely distractor is a portion of RNA, because RNA carries genetic messages in some processes, but in standard cellular genetics genes are DNA sequences.
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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.
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