Problem 2: Help our baby!
Part 1
Building Knowledge – Part 1
Genetics 101: Kahn Academy
Step 1. Attempt the knowledge check for this portion of the unit. See
bottom portion of this page.
Parts of the DNA Structure and Punnett Squares Knowledge Check – Answer the knowledge
check questions. They are located at the end of this document… If you are unable to answer the
questions you must complete the knowledge building exercises, step 2. If you are able to answer
the questions without any assistance you are ready to move on to the next portion of the unit,
Building Knowledge part 2. Submit your work to your instructor via email for feedback.
You are encouraged to complete the knowledge check in a word document. However you are
welcome to complete the knowledge check by printing the document and placing it in your
biology binder OR complete the following in your biology lab notebook.
Step 2. What is Genetics?
Watch part 1, 2, 3, and part 4
http://www.khanacademy.org/science/biology/v/genetics-101-part-1--what-are-genes
After each view record in your notebook, or in a notes section of a word document, a summary of what
you learned. Be sure to record words that are new to you.
- Optional (but excellent study habit): Research the vocabulary definitions and sketch
your understanding of that word.
Step 3 What is the structure of DNA?
AND Interactive parts of DNA using the computer…
http://www.dnai.org/teacherguide/pdf/ss_structure_mc1.pdf
AND/OR
Hands on contructing DNA paper 2D
http://www.dnai.org/teacherguide/pdf/ori_color.pdf
AND/OR
Hands on constructing DNA 3D – See Mrs. Kirby Room 1016. It takes about 20 minutes to compose the
3D DNA model.
Step 3 – Details of genetics? Understanding vocabulary: DNA, alleles, homologous, heterozygous,
homozygous, genotype, phenotype, and heredity.
Watch this video: You may need to watch this video a couple of times to understand the vocabulary.
Problem 2: Help our baby!
Part 1
http://www.khanacademy.org/science/biology/v/introduction-to-heredity
AND/OR
Read about it first or second…. This is a great summary of the basics of genetics.
http://hawaii.gov/health/family-childhealth/genetics/newpdf/Completed%20Genetics%20101%20for%20Teacher%20Final.pdf
Step 4 – Punnett Square vocabulary and practice completing Punnett squares.
We all learn at different rates and we learn different things from different experiences. Try all or one of
the following 3 choices.
Virtual Lab http://www.mhhe.com/biosci/genbio/virtual_labs/BL_05/BL_05.html
AND/OR
Tutorial/Virtual Lab
http://bio3400.nicerweb.com/med/Vid/Discover2e/ch12a03_Mendelian-monohybrid.dcr
AND/OR
Quiz your self. If you can answer these questions you are ready to move on with step 5.
http://biology.clc.uc.edu/courses/bio105/geneprob.htm
Only complete the ….
Monohybric cross
Incomplete Dominance
Testcross
Sex-Linked Genes
Sex (It’s a Phenotype, Not a Chromosome!)
IN ADDITION TO THE ABOVE: Khan Academy Lesson
http://www.khanacademy.org/science/biology/v/punnett-square-fun?v=D5ymMYcLtv0
Step 5 - Showing what you learned
Correct the quiz using a different color (to show your learning) using what you learned the content.
Never delete your work. Only use strike through (select the font you would like to change. C lick on
format, click on Font, click “strikethrough.”
Assessment
Knowledge check - DNA Structure and Punnett Squares – Formative Quiz
1. What is DNA?
2. What are genes?
3. What process is it called when a body cell divides? _____________________ Is that a diploid or
haplod cell?
4. What process is it called when an ovary cell divides? ____________________ Are the cells produced
diploid or haploid?
Problem 2: Help our baby!
Part 1
5. What is genetic variation?
6. What processes account for genetic variation?
7. Do you know of any genetic disorders? List them.
8. What is a pedigree?
9 In this pedigree, the shaded individuals are homozygous recessive. What is the genotype of individual
B?
a. heterozygous
b. homozygous recessive
c. homozygous dominant
d. none of the above
e. can not tell from the diagram
16. What is the genotype of individual E?
a. heterozygous
b. homozygous recessive
c. homozygous dominant
d. none of the above
e. can not tell from the diagram
17. If E married an individual who is homozygous recessive, what is the probability that their first child
will be homozygous recessive? (Hint Punnett Squares).
a. 1/8
b. ¼
c. ½
d. 1
e. 0
Check you work for 14 – 17 http://bio3400.nicerweb.com/med/Vid/Discover2e/ch13a04_Pedigree.swf
Next Steps: Submit your work to kirbym@kmsd.edu for feedback.
Click Home. Click Problem 2. Begin Building Knowledge 2.