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Chapter 10 Note-taking Guide



Name________________________Mod________

Structure of DNA

  •   DNA is a ______________________.

  •   DNA is made from _____________________ called

      _________________________.

  •   A nucleotide is made of three parts: ____________________________(sugar),

      ______________________________, and a _____________________________.

Nitrogenous Bases

  •   DNA is made from _______________ bases.

  •   _______________________, _________________________,

      ______________________ and ________________________.

  •   They are represented A, G, C, T.

  •   Adenine and Guanine are classified as ________________________ and contain

      two rings of carbon.

  •   Thymine and Cytosine are classified as _______________________________ and

      contain one ring of carbon.

The Double Helix

  •   In 1953, James Watson and Francis Crick suggested a model for the structure of

      DNA.

  •   The shape is called a ________________________________ and is a spiral.
•   Other scientists contributed to the discovery of the double helix.

   •   Rosalind Franklin took pictures of ______________________ crystals and revealed

       the helix shape.

   •   Maurice Wilkins assisted Rosalind Franklin in her research.

   •   The double helix was found to be linked together by

       ___________________________________.

Base Pairing

   •   ______________________ always pairs with guanine using _______________

       hydrogen bonds.
•   Adenine always pairs with __________________________ using

      ________________ hydrogen bonds.

  •   This base pairing rule is important because when DNA is

      ____________________________, all copies must be the ___________________.




DNA Replication

  •   The process of copying DNA is called ______________________________.

  •   ______________________________ can begin and end at many points on the

      molecule simultaneously.
•   Step 1: _______________________________ separates the double helix into

    ____________________ strands.

•   Step 2: _________________________________ binds to the separated strands and

    constructs a new strand based off the old one using

    _______________________________________.

•   Step 3: The __________________________________ winds up again.

Accuracy and Repair

•   The process of _____________________________________________ occurs with

    a high degree of accuracy.

•   Sometimes a ________________________________ can cause a change in a base

    pair.

•   The body contains _______________________________ to help find the mistakes

    and repair the errors.

•   Some errors are missed and have serious consequences for new cells.

•   Mutations can occur because of _________________________,

    _________________________, _________________________________________

    and other agents.

RNA

•   RNA is similar to DNA because it is made of

    ___________________________________. There are some differences though.

•   Difference 1: RNA contains the sugar __________________________.

•   Difference 2: RNA is ______________________________ all the time.
•   Difference 3: RNA does not contain ____________________________ but has

      __________________________ instead.




Types of RNA

  •   RNA has three types.

Name of RNA                  What Does it look like?   What Does it Do?
Transcription

   •   One function of ________________________is to carry genetic information from

       ______________________ in the nucleus to the cytoplasm when it can be used to

       make ______________________.

   •   The process by which genetic information is coped from DNA to RNA is called

       ____________________________.

Steps of Transcription

   •   Step 1: _____________________ unwinds.

   •   Step 2: _____________________________________________ binds to the DNA

       and begins to bring in RNA nucleotides.

   •   Step 3: RNA is paired with the DNA according to

       _______________________________________ until an entire RNA strand is

       made.

   •   Step 4: The RNA is ____________________________ and the DNA winds up

       again.

   •   All three types of RNA can be made this way.

Splicing
•   Once the ________________________________ is made from the DNA, it must

       be __________________________ to remove information that is not required for

       protein synthesis.

   •   Raw mRNA is made of _____________________ and _____________________.

   •   During splicing, _____________________ are removed and the

       ____________________________ merge together.

Protein Synthesis

   •   Proteins are __________________________ or polypeptides.

   •   The proteins are made of _____________________________ called

       _____________________________.

   •   There are _______________________ different amino acids.

   •   During protein synthesis, _________________________ is translated into specific

       amino acids.

   •   The genetic information necessary to make amino acids is in the form of

       _____________________ called ___________________.

   •   Codons are ___________________________ nucleotides together as a set.

   •   All living beings contain __________________________ and make proteins the

       same way. This evidence supports that all living creatures are

       ___________________________.

Translation

   •   The process of _________________________________ proteins from information

       coded in mRNA is called ________________________________.
•   __________________________ leaves the ____________________________and

       then migrates to the cytoplasm to dock with __________________________.

   •   ________________________________ float freely in the cytoplasm waiting to be

       picked up by _______________________ molecules.

   Steps of Translation

   •   Step 1: _______________________ moves from the nucleus to the

       ______________________.

   •   Step 2: _______________________ docks with one or many

       ___________________.

   •   Step 3: __________________________each with specific

       ______________________________ dock with the ________________________

       on the mRNA starting with the start codon ____________________.

   •   Step 4: As each _____________________________ docks, it brings with it an

       ________________________________.

   •   Step 5: The amino acids bind together and become long chains called

       _________________________________.

   •   Step 6: Once the stop _______________________________ is reached, the protein

       breaks off and leaves the cell to be used.

Problems with Protein Synthesis

   •   As with all mechanisms and processes, these can have problems if a

       ___________________________ changes a base.
•   Once the base of a ______________________________ molecule is changed, that

    changes the ________________________________ which in turn changes the

    protein made.

•   This can cause serious _______________________ and

    ______________________________ or it may cause nothing.

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Chapter 10 Note

  • 1. Chapter 10 Note-taking Guide Name________________________Mod________ Structure of DNA • DNA is a ______________________. • DNA is made from _____________________ called _________________________. • A nucleotide is made of three parts: ____________________________(sugar), ______________________________, and a _____________________________. Nitrogenous Bases • DNA is made from _______________ bases. • _______________________, _________________________, ______________________ and ________________________. • They are represented A, G, C, T. • Adenine and Guanine are classified as ________________________ and contain two rings of carbon. • Thymine and Cytosine are classified as _______________________________ and contain one ring of carbon. The Double Helix • In 1953, James Watson and Francis Crick suggested a model for the structure of DNA. • The shape is called a ________________________________ and is a spiral.
  • 2. Other scientists contributed to the discovery of the double helix. • Rosalind Franklin took pictures of ______________________ crystals and revealed the helix shape. • Maurice Wilkins assisted Rosalind Franklin in her research. • The double helix was found to be linked together by ___________________________________. Base Pairing • ______________________ always pairs with guanine using _______________ hydrogen bonds.
  • 3. Adenine always pairs with __________________________ using ________________ hydrogen bonds. • This base pairing rule is important because when DNA is ____________________________, all copies must be the ___________________. DNA Replication • The process of copying DNA is called ______________________________. • ______________________________ can begin and end at many points on the molecule simultaneously.
  • 4. Step 1: _______________________________ separates the double helix into ____________________ strands. • Step 2: _________________________________ binds to the separated strands and constructs a new strand based off the old one using _______________________________________. • Step 3: The __________________________________ winds up again. Accuracy and Repair • The process of _____________________________________________ occurs with a high degree of accuracy. • Sometimes a ________________________________ can cause a change in a base pair. • The body contains _______________________________ to help find the mistakes and repair the errors. • Some errors are missed and have serious consequences for new cells. • Mutations can occur because of _________________________, _________________________, _________________________________________ and other agents. RNA • RNA is similar to DNA because it is made of ___________________________________. There are some differences though. • Difference 1: RNA contains the sugar __________________________. • Difference 2: RNA is ______________________________ all the time.
  • 5. Difference 3: RNA does not contain ____________________________ but has __________________________ instead. Types of RNA • RNA has three types. Name of RNA What Does it look like? What Does it Do?
  • 6. Transcription • One function of ________________________is to carry genetic information from ______________________ in the nucleus to the cytoplasm when it can be used to make ______________________. • The process by which genetic information is coped from DNA to RNA is called ____________________________. Steps of Transcription • Step 1: _____________________ unwinds. • Step 2: _____________________________________________ binds to the DNA and begins to bring in RNA nucleotides. • Step 3: RNA is paired with the DNA according to _______________________________________ until an entire RNA strand is made. • Step 4: The RNA is ____________________________ and the DNA winds up again. • All three types of RNA can be made this way. Splicing
  • 7. Once the ________________________________ is made from the DNA, it must be __________________________ to remove information that is not required for protein synthesis. • Raw mRNA is made of _____________________ and _____________________. • During splicing, _____________________ are removed and the ____________________________ merge together. Protein Synthesis • Proteins are __________________________ or polypeptides. • The proteins are made of _____________________________ called _____________________________. • There are _______________________ different amino acids. • During protein synthesis, _________________________ is translated into specific amino acids. • The genetic information necessary to make amino acids is in the form of _____________________ called ___________________. • Codons are ___________________________ nucleotides together as a set. • All living beings contain __________________________ and make proteins the same way. This evidence supports that all living creatures are ___________________________. Translation • The process of _________________________________ proteins from information coded in mRNA is called ________________________________.
  • 8. __________________________ leaves the ____________________________and then migrates to the cytoplasm to dock with __________________________. • ________________________________ float freely in the cytoplasm waiting to be picked up by _______________________ molecules. Steps of Translation • Step 1: _______________________ moves from the nucleus to the ______________________. • Step 2: _______________________ docks with one or many ___________________. • Step 3: __________________________each with specific ______________________________ dock with the ________________________ on the mRNA starting with the start codon ____________________. • Step 4: As each _____________________________ docks, it brings with it an ________________________________. • Step 5: The amino acids bind together and become long chains called _________________________________. • Step 6: Once the stop _______________________________ is reached, the protein breaks off and leaves the cell to be used. Problems with Protein Synthesis • As with all mechanisms and processes, these can have problems if a ___________________________ changes a base.
  • 9. Once the base of a ______________________________ molecule is changed, that changes the ________________________________ which in turn changes the protein made. • This can cause serious _______________________ and ______________________________ or it may cause nothing.