
DNA and RNA Review
Flashcard
•
Science
•
7th - 8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the function of mRNA in protein synthesis?
Back
mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where it serves as a template for protein synthesis.
2.
FLASHCARD QUESTION
Front
What is a codon and its role in translation?
Back
A codon is a sequence of three nucleotides in mRNA that corresponds to a specific amino acid or a stop signal during protein synthesis.
3.
FLASHCARD QUESTION
Front
What are the components of DNA?
Back
DNA is composed of nucleotides, which include a sugar (deoxyribose), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine).
4.
FLASHCARD QUESTION
Front
Where is DNA located in eukaryotic cells?
Back
In eukaryotic cells, DNA is primarily located in the nucleus.
5.
FLASHCARD QUESTION
Front
What are the base pairing rules in DNA?
Back
In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).
6.
FLASHCARD QUESTION
Front
What is the structure of DNA often described as?
Back
The structure of DNA is often described as a double helix, resembling a twisted ladder.
7.
FLASHCARD QUESTION
Front
What is the role of tRNA in protein synthesis?
Back
tRNA (transfer RNA) transports specific amino acids to the ribosome during protein synthesis, matching its anticodon with the corresponding codon on the mRNA.
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