DNA Function Chp. 10 Biology

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DNA Function

Chp. 10

Biology

Background Vocab

RNA - (ribonucleic acid)

Plays several roles in the manufacture of proteins

Made of nucleotides

Nitrogenous bases A , U, C, and G

A gene is a long section of a DNA molecule whose sequence of building blocks specifies the sequence of amino acids in a particular protein.

Protein fundamental component of living cells

Enzymes 

Hemoglobin

Hormones

Antibodies

Insulin

How does DNA work

DNA (nucleic acid)

RNA

Amino Acids – building blocks of Proteins

Protein

Do a job (perform a function)

• Analogy to remember what’s going on, build a house

DNA is the blue prints (instructions)

Amino Acids are the lumber

– Proteins are the house…

How are genes Expressed?

Protein Synthesis from DNA-

Chp. 10

Transcription vs. Translation

• Transcription in the nucleus

– Make mRNA from DNA

– DNA  mRNA

• Translation in the cytoplasm

– Make Proteins at the ribosome

– mRNA  proteins

– “translate a language”

• nucleic acid  amino acid

Translating nucleic acid language to amino acid language

Link to Good Video

• “Wikipedia. Is the best thing ever. Anyone, in the world, can write anything they want about any subject. So you know you are getting the best possible information.”

• Who said this?

2.

1.__________

3.

4.

5.

Chain or protein

Quiz time!

G

1b.

Quiz time!

5.

1a.

2.

3.__

4.

6.

8.

7.

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