18 Questions
What is the significance of the sequence of nucleotides in DNA?
It determines the information encoded in the DNA molecule
What is the characteristic of a purine base in DNA?
It has a two-ring structure
What is the process by which DNA makes a copy of itself?
DNA replication
What is the role of RNA in the process of protein synthesis?
To transmit the DNA message from the nucleus to the rest of the cell
What is the result of the base pairing rule in DNA?
A purine base is always paired with a pyrimidine base
What is the primary function of messenger RNA (mRNA) in protein synthesis?
To carry genetic information from DNA to the ribosome
What is the characteristic of the DNA replication process?
It is a semi-conservative process, where half of the old strand is saved
During transcription, what is the role of RNA nucleotides?
To match up to complementary DNA nucleotides
What is the chart that shows the correspondence between codons and amino acids?
Codon chart
What is the process by which proteins are made from RNA?
Translation
What is the term for the chromosomal material in its decondensed, threadlike state?
Chromatin
What is the theory that explains how chromosomes carry genetic information?
Chromosomal Theory of Inheritance
What percentage of DNA is similar between two random humans?
99.9%
What is the function of proteins in living organisms?
To perform all the actions of living things
What is the structure of DNA according to the Watson and Crick model?
A ladder-like structure called a Double Helix
Who performed X-ray diffraction of DNA in 1952?
Rosalind Franklin
What is the primary function of DNA?
To store genetic information
What is the approximate number of base pairs in human DNA?
3 billion
Test your understanding of the DNA molecule, including its structure, base pairing rules, and the composition of nucleotides. Learn about the purines and pyrimidines, and how they contribute to the genetic code.
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