Wgu Biochemistry Task 1

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Wgu Biochemistry Task 1
Transmission of
Information by DNA and
(My name)
December 2014
GRT1 Biochemistry Task 1

DNA Replication at the Biochemical
• A DNA (Deoxyribonucleic Acid) molecule is in comprised of two strands of nucleotides.
• When DNA replicates, the nucleotide strands are split and used as a template for a new strand.
– The original strand (template) is called the parent strand
– The replicated strands are called daughter strands.
– A complete daughter DNA strand contains one strand from the parent, and one strand that has been added as a match for the template.

• Because the daughter strands each contain one strand of the original DNA, this process is semi-conservative.
(Wolfe, 2000c)


• There are four nucleotides
…show more content…
(Wolfe, 2000a)

Role of mRNA
• Transcription begins within the nucleus of a cell when mRNA binds to a segment of DNA and produces a copy.
• This mRNA moves out of the nucleus and into the cytoplasm. • Once in the cytoplasm, the mRNA is able to become a part of the process of translation.
• Codons in single strands of mRNA join with anticodons of tRNA (transfer RNA) to form proteins. (Wolfe, 2000a)


(DNA transcription, 2014)



NOTE: This is the same mRNA that has just been through the
Transcription process in the nucleus
(DNA transcription, 2014)

Role of RNA Polymerase Inhibition in
Death Cap Mushroom
• Death Cap mushrooms (Amanita phalloides) contain the deadly toxin α-amanitin.
• This toxin affects RNA
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(n.d.). Retrieved from;badurl=aHR0cDovL3dndS50aGlua3dlbGwuY29t/1 0a697611531addee4c74c585af7eed8/content/animations/26/26.html
Hudon-MIller, S. (2013). Death cap mushroom. Retrieved from Hudon-MIller, S. (2013). DNA replication. Retrieved from Santi, L., Maggioli, C., Mastroroberto, M., Tufoni, M., Napoli, l., & Caraceni, P. (2012). Acute liver failure caused by amanita phalloides poisoning. International Journal in Hepatology, 2012. Retrieved from The poison diaries. (n.d.). Retrieved from
Wolfe, George. (March 16, 2000a). Events at the replication fork: the lagging strand. Thinkwell Biology: Molecular
Genetics. Retrieved from

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