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Chapter 2

Chapter 2 notes- Anthro text book by Shawn Lehman

3 Pages
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Department
Anthropology
Course Code
ANTA01H3
Professor
Christopher Watts

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Chapter 2 (continued)
Continuing from page 24, line combinations of genes every generation
Recombination can break up good combinations of genes
i.e punnet square
DNA is the hereditary material in the nucleus
Outside rails of DNA are held together by sugar phosphate bonds
Sugar phosphate bonds are very strong being analogous to chemical glue
Rungs on dNA ladder are composed of nucleotides: adenine cytosine guanine and
thymine.
Held together by relatively weaker hydrogen chemical bonds
DNA function: blueprint necessary for specifying the sequence of amino acids that
comprise proteins
Proteins are the building blocks of life
Protein formation: Transcription and Translation
Transcription:
The biological means of copying the DNA code in the nucleus and then getting it out
into the cytoplasm (where protein formation takes place)
Mrna assists and takes the DNA information to the cytoplasm
Translation:
The process during which the info in mRNA molecules is used to construct proteins
tRNA work as factory workers in this scenario
a codon is a sequence of three base pairs
anticodon: a unit made up of three nucleotides that correspond to the sequence of
three bases of the codon on the mRNA
Mutation:
an error of a nucleotide sequence which represents the ultimate source of new
genetic material in population
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Description
Chapter 2 (continued) Continuing from page 24, line combinations of genes every generation Recombination can break up good combinations of genes i.e punnet square DNA is the hereditary material in the nucleus Outside rails of DNA are held together by sugar phosphate bonds Sugar phosphate bonds are very strong being analogous to chemical glue Rungs on dNA ladder are composed of nucleotides: adenine cytosine guanine and thymine. Held together by relatively weaker hydrogen chemical bonds DNA function: blueprint necessary for specifying the sequence of amino acids that comprise proteins Proteins are the building blocks of life Protein formation: Transcription and Translation
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