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Name _____________________________________________________________________________Period ________Date _______________________
The Basics of Genetics
http://learn.genetics.utah.edu/content/begin/tour/
Click on the link that says "Tour the Basics"
1. What is DNA? __________________________________________________________________
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2. What does DNA stand for? ________________________________________________________
3. Why is DNA called a blueprint? _____________________________________________________
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4. The "twisted ladder" shape of the DNA molecule is called a ________________________________
5. Name the four bases found in a DNA molecule. _________________________________________
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6. A DNA strand is made of _____________ which make up ____________ which make up sentences.
7. These "sentences" are called _______________________________________________________
What is a Gene? Hint - Look at the navigation bar at the top, you'll need to click on "What is a Gene" to continue.
8. What is a gene? ________________________________________________________________
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9. Blood cells use a protein called _______________________ to capture and carry oxygen.
10. When a gene is changed, it is said to be ______________________________________________
11. A mutation in the hemoglobin gene cause what disorder? __________________________________
What is a Chromosome?
12. If you stretched the DNA from a cell out, how long would it be? ____________________________
13. How many chromosomes are in a human cell? _________in a mosquito? ________ a carp? _________
What is a protein?
14. How is a protein like a car engine? __________________________________________________
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15. Receptor proteins are responsible for picking up ________________________________________
16. Each gene in DNA encodes information on how to make an _________________________________
17. Once in the cytoplasm, the _______________ reads the message.
What is Heredity?
18. The passing of traits from parents to a child is the basis of _______________________________
19. Every child receives __________ of its chromosomes from his mother, and _______from his father.
20. When a sperm and egg join, they create a single cell called a _______________________________
21. Each child inherits a ______________ set of chromosomes
What is a Trait
22. Give an example of a physical trait: ___________________________
23. A dog fetching a bone is an example of what kind of trait. _____________________________
24. Scientists describe the set of information for each form of a trait as an ______________________
25. Scientists use the word __________________ to describe having two of the same allele for a trait.
26. Scientists us the word ___________________ to describe having two different alleles for a trait.
"Build a DNA Molecule" (http://learn.genetics.utah.edu/content/begin/dna/builddna/)
27. Build a DNA molecule. What is the base pair rule? _________________________________
28. Draw the DNA molecule you built in the space below. Show how the bases are lined up and how they
are attached.