making a face
DESCRIPTION
Making a Face. How chromosomes make us, us!. What makes you, you?. Do now: On your index card: What are genes? Where are genes located?. http://www.youtube.com/watch?v=_hRM11Bv7BA. Vocabulary. Gene Chromosomes Inherited Traits Acquired Traits Genotype Phenotype Sex Cells. Gene. - PowerPoint PPT PresentationTRANSCRIPT
Making a Face
How chromosomes make us, us!
Vocabulary
• Gene• Chromosomes• Inherited Traits• Acquired Traits• Genotype• Phenotype• Sex Cells
Gene
• Piece of DNA that codes for a specific trait
Chromosomes
• DNA that is coiled up so that it is easier to move from cell to cell.
Inherited traits
• Features that are only passed down to offspring through DNA. Cannot be changed
Acquired Traits
• Features that are not passed through DNA– Ex. A scar on your leg or a new hair cut
Which are inherited and which are acquired?
• Hair color• Eye Color• Hair style• Callus on your finger• Nose shape• Bigger muscles from working out• Scar on your arm• Ear size
Genotype
• The combination of genes you receive
Phenotype
• The features that result from your genes
Red Red White
Sex cells (gametes)
• Sperm cells and egg cells only have half of the DNA of our regular cells
• When they come together, they will make a complete set of chromosomes for the new offspring– ½ DNA from mom + ½ DNA from dad