inherited traits

Bedtime 5 for this Unit

Day 1 - Review Activities

1. Review

• Cell Parts (Use science notebooks to cards to review cell parts and their functions.)

• Animal Classification (Use science notebooks to review characteristics of vertebrates.)

PowerPoint with Review Questions..\Review Science Unit 1.ppt

2. Give Chapter 1 Unit Test

Day 2 - Heredity & Traits

1. Compare photos of families. PowerPoint with Photos Heredity.ppt
   Humans ../../../animals/reproduction/family_photos.htm
   Animals ../../../animals/reproduction/animal_photos.htm

Discuss similarities and differences in parents and their offspring.
Emphasize the only clear way to tell a parent from its offspring is the size.

2. BrainPop on Heredity http://www.brainpop.com/health/geneticsgrowthanddevelopment/heredity/
    

3. Tennessee Science Workbook Chapter 4 Part 1 pages 78-79 "How Are Traits Inherited?"

4. Studying Traits Activity
   Resource - Discussion on genes (dominate and recessive)

• Dominant and Recessive Traits http://www.faculty.virginia.edu/teach-present-bio/GeneticsWorksheet.html

• Teacher Guide: An Inventory of My Traits http://www.usc.edu/org/cosee-west/AprilLectureMaterials/Activities/AnInventoryofMyTraits.pdf

• rolled or not rolled tongue

• widow's or no widow's peak

• straight or curved thumb

• free or attached earlobe

• curly or straight hair

• dimples or no dimples

• cleft or no cleft chin

• fold hands- Which thumb is on top?

• eye color

Students should evaluate themselves for each of the above traits (characteristics). After recording the data, complete a class bar graph with the findings.

5. Trait Bingo http://health.utah.gov/genomics/familyhistory/documents/Senior%20Center%20Packet/traitsbingo.pdf

Day 3 - Inherited and Acquired Traits

1. Make graphic organizer with 2 pockets for:

   • Inherited Traits

   • Acquired Traits

   List traits on cards to sort into pockets:

   Inherited Traits	Acquired Traits
   rolled tongue	how to ride a bicycle
   widow's peak	chicken pox marks
   curved thumb	scars
   free or attached earlobe	tooth with cavity
   dimples	muscle tone
   cleft chin	black eye
   coloring (eyes, hair, skin)	sun tan
   fingerprints	dyed hair
   bushy eyebrows	ability to read

2. Ten Questions on Inherited or Acquired Traits http://training.sedc.k12.ut.us/sci78/7/apr/acquired_inherited_traits.pdf

3. Discussion and Graphic Organizer

         0507.4.1 Explain how genetic information is transmitted from parents to offspring.

   Outside

   Chromosomes

   DNA

   genes

   Inside

   thread-like structures in the nucleus of almost every cell come in matching pairs, one member of the pair providing genetic information from the mother, the other from the father

   an extremely long molecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms ladderlike two long chains twisted into a double helix

   A portion of a DNA molecule that serves as the basic unit of heredity

   Chromosomes are thread-like structures in the nucleus of almost every cell. They come in matching pairs, one member of the pair providing genetic information from the mother, the other from the father.  Each human parent gives its child 23 chromosomes (23 from the mother and 23 from the father), totaling 46 in all.

   Each chromosome contains a very complex molecule called DNA.  The DNA molecule contains genes. A common analogy is that DNA is like the strands of a necklace and the chromosomes are the beads. Genes direct how an organism’s body is built and maintained.

   Boy or Girl

   Twenty-two of the pairs of chromosomes are similar in males and females. The 23rd pair is different. A female has two X chromosomes and a male has an X and a Y chromosome.
    

4. Experiment "Boy or Girl?"
   Explain to students that gender is determined by chromosomes that are inherited from parents. If an organism inherits two X chromosome, it will be female. If the organism inherits and X and Y chromosome it will be male. Complete the following experiment. (Marked one lima bean with a Y on one side and an X on the other. On another mark an X on both sides. Shake the beans and drop them on a desk. Record the results on a chart. After 10 times discuss.)

5. Experiment http://seplessons.ucsf.edu/node/217 (extract DNA from strawberries)

Day 4 - Dominant and Recessive Genes

1. BrainPop http://www.brainpop.com/health/geneticsgrowthanddevelopment/genetics/

2. Dominant or Recessive Genes http://ilo.ecb.org/SourceFiles/predicting_heredity.swf

3. Video Punnett Square - Gregor Mendel's Rules of Heredity: Using Punnett Squares [05:04]

   http://player.discoveryeducation.com/index.cfm?guidAssetId=7570E857-9BAE-4732-920F-CF79EACA9201&blnFromSearch=1&productcode=US

4. Make graphic organizer for science notebooks http://www.teachervision.fen.com/tv/printables/DominantvsRecessive.pdf

5. Plant Trait Activity http://www.wyomingagclassroom.org/resources/pdf/5_6/inherited_plant.pdf

6. Discuss plant hybrids and cuttings. (Plant spider plants.)

Day 5 - Dominant and Recessive Genes

1. Marshmallow activity http://www.usoe.k12.ut.us/curr/science/sciber00/7th/genetics/sciber/fnbgacti.htm

2. Birthmarks and Scars

   • Discuss differences

   • Make graphic organizer to distinguish the two

3. Give Chapter 4 Unit Test

Resources

http://www.ocmboces.org/iss/mstsite/Storage/PatternsCyclesInheritance_SN_vs2.doc

http://www.msbroome.com/2007-2008/Power%20Points/Heredity%20BW.pdf