17 Questions
What is the function of DNA according to the text?
Blueprint of biological guidelines that living organisms must follow
Which nitrogenous base pair is unique to RNA and not found in DNA?
Adenine - Uracil
What is the central dogma of molecular genetics primarily concerned with?
Transcription and translation of genetic information
Which macromolecule is directly involved in protein synthesis according to the text?
Nucleic acids
In Chargaff's rule, what does it state about the nitrogenous bases?
Thymine pairs with Cytosine
Which molecule primarily carries out the process of transcription and translation?
Messenger RNA (mRNA)
What did P.A. Levene establish about DNA composition in the 1920s?
DNA is composed of four nitrogenous bases, a deoxyribose sugar, and a phosphate group.
Who laid down the groundwork for the building block of DNA known as a nucleotide?
P.A. Levene
When did Erwin Chargaff analyze the proportion of the nitrogenous bases in the DNA of various species?
In the 1940s
Which scientist elucidated the DNA structure?
James Watson
In which era did P.A. Levene establish facts about DNA composition?
1920s
What does the start codon AUG specify and what role does it play in translation?
AUG specifies the amino acid methionine and signals the start of translation
What is the function of the stop codons UAA, UAG, and UGA in translation?
They tell the cell when a polypeptide is complete
When providing the tRNA anticodon for a given mRNA strand, what is the importance of matching them correctly?
Correct matching ensures proper translation initiation
In the DNA strand provided, what does the sequence 'ACT' code for?
Serine
Based on the mRNA sequence given, what amino acid follows glycine (Gly)?
Serine
What does the term 'Central Dogma of Molecular Biology' encompass?
DNA Replication, Transcription, and Translation
Test your knowledge on DNA structure, base pairing, and the contributions of scientists like Rosalind Franklin and Watson-Crick with this quiz. Questions cover adenine-thymine and guanine-cytosine base pairing, double-helix structure, and more.
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