Transcript Genetics of Sesame Street Characters

Genetics of Sesame
Street Characters
OBJECTIVE:
To use 5 Sesame Street characters to create
a gene map, move chromosomes through the
steps of meiosis and to draw a family portrait.
Study the bean bag characters and write
down all of the traits that could be passed
from parent to offspring. (We will brainstorm)
Specific forms of
the
trait:
purple, orange, blue, magenta, re
body color:
hair type: hair or no hair
lip color: red, purple, magenta
nose color:pink or orange
eye shape:Exo (pops out) or Endo (flat)
chromosome: structures in a cells
nucleus that contain heredity
material
gene: section of DNA on a chromosome
that codes for a specific trait.
Passed from parent to offspring.
The different forms a gene may have for a
allele:
trait. For example: nose color pink is dominant and
orange is recessive. One allele is P (pink) and another
allele is (p) orange.
karyotype:
a set of chromosomes in matched pairs.
Normal human karyotype is 23 pairs of
chromosomes.
sex chromosome:
The 23rd pair of human
chromosomes.
Telly
Grover
Zoe
Elmo
Honker
•
Line up your cut out chromosomes like
this:
Female
Male
Chromosome #1
Chromosome #2
sex chromosomes
xx or xy
Mitosis
•
This is what mitosis would look like, creating
two identical cells: (I’m using the Male
example)
Cell 1
Cell 2
Meiosis
•
This is what meiosis would look like for
egg/sperm cells: (I’m using the female
example)
4 cells/not
identical
Each of these
becomes and
egg cell or a
sperm cell.
Cell 1
Cell 2
Cell 3
Cell 4
Paste chromosomes
in your sex cell.
Fertilization
•
•
Choose any two gametes (egg cells or
sperm cells) from your individual and
paste them in the appropriate place on
your paper. (If your character is male,
glue two sperm cells in place. If your
character is female, glue two egg cells
in place)
HOLD ON TO YOUR OTHER TWO
GAMETES.
•
•
•
Choose a spouse for your character.
Find a classmate who has a different
character than you and a different
gender.
Give them your gametes and take
theirs.
Glue the new gametes onto your paper
Your teacher will bring you the fertilized
next
to
the
ones
you
already
glued.
eggs your character needs.