Download DNA Structure: Deoxyribonucleic acid

Study Guide for Genetics DOK 5A (LS 12ADF)
How to study:
1. Read Study Guide.
2. Complete the Study Guide.
3. Review Notes and Labs
4. Make Flashcards, Foldable, etc. with the information or pick something from the Study
Guide Menu.
5.
6. important
Pick something
from thebelow,
Study Guide
Menu.
For the
scientists
explain
their discoveries:
1. Mendel
2. Franklin
3. Watson and Crick
Pick one of the scientists and write a paragraph about their dramatic history.
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DNA Structure: Deoxyribonucleic acid is shaped like a __________ __________ , or
twisted ladder.
DNA is made up of ____________________. A nucleotide contains a __________,
a __________, and a __________ .
What part makes up the Side Poles of the ladder? __________ __________
What part goes in Between the side poles?
__________
Which bases pair together? _____ with _____ and _____with _____
Traits can be inherited or environmental
Definition of Inherited Trait: _____________________________________
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Inherited example: _____________________________________________
Why is this trait an inherited trait? ________________________________
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Definition of Environmental Trait: _________________________________
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Environmental example: _________________________________________
Why is this trait an environmental trait? ____________________________
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Watson and Crick’s discovery didn’t just win them the Nobel Prize because the double
helix is pretty. The double helix showed something called: semiconservative
replication. You modeled that process when you made a copy of your original DNA
strand (all red twizzlers) by using the chocolate twizzlers in the lab. You were able to
use the original DNA model as a template to create the copies. Draw and explain that
process in the space below.
NOTE: When you draw and explain, you must use PICTURES AND WORDS!!!
1) Define each word, then write your OWN definition of the word.
a. Heredity – ________________________________________________________
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b. DNA – ___________________________________________________________
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c. Genes – __________________________________________________________
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d. Alleles – __________________________________________________________
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e. Chromosomes – ___________________________________________________
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2) Fill out the following diagram with the words: Chromosomes, DNA, Alleles, Genes.
3) How do they relate? Explain how each of the two terms below relate to each other in a
sentence.
a. DNA and Chromosomes (example: DNA and chromosomes relate to each other
because chromosomes are made of DNA).
b. DNA and Genes ___________________________________________________
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c. Genes and Alleles __________________________________________________
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d. Genes and Chromosomes ___________________________________________
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4) In 2-5 sentences, put the pieces together and explain the complete relationship between
DNA, Genes, Alleles, and Chromosomes.
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5) Fill in the chart below with any examples (just like your Notes Packet)
Gene
My allele
Someone else’s allele