DNA vs RNA
Authored by Bobby Bullard
Biology
9th Grade
NGSS covered
Used 779+ times
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About
This quiz focuses on the fundamental structure and function of DNA and RNA, covering essential molecular biology concepts appropriate for 9th grade biology students. The questions assess students' understanding of DNA's double helix structure, nucleotide composition, complementary base pairing rules, and the key differences between DNA and RNA molecules. Students need to grasp that DNA is composed of nucleotides containing a phosphate group, deoxyribose sugar, and one of four nitrogenous bases (adenine, thymine, cytosine, guanine), while RNA contains ribose sugar and substitutes uracil for thymine. The quiz requires knowledge of Chargaff's rules for base pairing, the location of DNA within the nucleus, the role of hydrogen bonds in maintaining DNA structure, and the historical contributions of scientists like Watson, Crick, and Rosalind Franklin. Students must also understand the different types of RNA, particularly transfer RNA's function in protein synthesis, and recognize DNA's critical role as the blueprint for all living organisms. Created by Bobby Bullard, a Biology teacher in the US who teaches grade 9. This assessment serves as an excellent tool for evaluating student comprehension of nucleic acid fundamentals before advancing to more complex topics like transcription and translation. Teachers can deploy this quiz as a formative assessment after introducing DNA structure, use it as a review activity before unit exams, or assign it as homework to reinforce classroom learning. The mix of factual recall questions and conceptual understanding items makes it valuable for identifying students who need additional support with molecular biology vocabulary versus those struggling with deeper structural concepts. This quiz aligns with NGSS standards HS-LS1-1 (constructing explanations for how DNA determines organism structure and function) and supports the development of disciplinary core ideas about inheritance and variation of traits essential for high school biology success.
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27 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following best describes a DNA molecule?
Tags
NGSS.HS-LS1-1
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following units are repeatedly joined together to form a strand of DNA?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Watson and Crick were the first to suggest that DNA is _____
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which organelle is DNA usually found in?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Name this structure
Tags
NGSS.HS-LS1-1
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nucleotides are made up of a sugar, phosphate, and..?
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