What is the structure of DNA?
DNA and RNA Structure

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Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
DNA is a double helix formed by two strands of nucleotides twisted around each other, held together by hydrogen bonds between complementary bases (adenine-thymine and guanine-cytosine).
2.
FLASHCARD QUESTION
Front
What are the three types of RNA?
Back
The three types of RNA are messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA).
3.
FLASHCARD QUESTION
Front
What is the primary function of mRNA?
Back
mRNA carries the genetic information from DNA to the ribosome, where proteins are synthesized.
4.
FLASHCARD QUESTION
Front
What is the primary function of tRNA?
Back
tRNA brings amino acids to the ribosome during protein synthesis, matching them to the coded message in mRNA.
5.
FLASHCARD QUESTION
Front
What is the primary function of rRNA?
Back
rRNA is a structural component of ribosomes, facilitating the assembly of amino acids into proteins.
6.
FLASHCARD QUESTION
Front
What are nucleotides?
Back
Nucleotides are the building blocks of nucleic acids (DNA and RNA), consisting of a sugar, a phosphate group, and a nitrogenous base.
7.
FLASHCARD QUESTION
Front
What are the nitrogenous bases in DNA?
Back
The nitrogenous bases in DNA are adenine (A), thymine (T), guanine (G), and cytosine (C).
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