Download Genetics Video

Class # _______: Bill Nye Genes
Name: ________________________________________ 1 2 3 4
Activity 1: Watch Bill Nye “Genes” (19:49)
http://www.youtube.com/watch?v=aXi8zD805tA
1. Where do your genes come from? y__________ p________________
2. G_________ are in every living thing on Earth.
3. Your body is made up of c______.
4. Deoxyribonucleic acid is abbreviated into the acronym. __ __ __
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DNA is made up of ____ main chemicals.
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It is shaped like a twisted l______________.
5. How many times longer is DNA than it is wide? A b__________ times longer.
6. Your g____________ are strung out on c_________________. Thousands and
thousands of g_____ are joined together to make a c___________.
7. DNA is contained in the n___________ of a cell.
8. G_________ are packed into c_____________________.
9. Mom tells Richie: Genes are the set of __________________ _______________
that get passed down from _____________to child. In the process, of course, the
genetic material is ____________________ in new ways, which is why people bear
resemblance to their _____________ and __________________without looking like
any one relative in particular.
10. Humans have ____ pairs of c________________ or a total of ______.
11. What analogy does Bill use to describe the human set of chromosomes?
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____ books
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What is each chapter like? ________
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How many genes do humans have? ____________
12. Most species have fewer than _________chromosomes but thousands and
thousands of g______.
13. Bill calls the babies “bundles of g________ c_________
14. Parents each provide h__________of the genetic information needed to make a
baby. The reproductive cell that a:
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mother donates to her child is called the e________
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father donates to his child is called the s_________
15. The number of cells needed to make a baby is ______ trillion cells
16. Earlobes can be ______________or ____________________
17. The four chemicals of DNA are:
 Adenine
 T_______________
 C_______________
 G_______________
18. In the demonstration, the d______________ gene for rolling your tongue is
represented by the letter “R” In the demonstration, the r______________ gene for
rolling your tongue is represented by the letter “r.”
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If a person has the pattern RR, then the person ________ roll their tongue
If a person has the pattern Rr, then the person ________ roll their tongue
If a person has the pattern rr, then the person ________ roll their tongue
Activity 2: Observing Genetic Variations in our Class!
19) How many students on your team have:
 Dangling ears? _______
 Attached ears? _______
Why do some students have dangling ears while other have attached ears? (Complete sentence)
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20) How many students on your team have:
 Either a RR or Rr pattern for rolling their tongues? _________
 An rr pattern for rolling their tongue? ________
Why are some students able to roll their tongue while other can’t? (Complete sentence)
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