Non Mendelan Genetics Foldable

Fold your paper so you have 2 flaps opposite each other Next cut four divisions on each side. You should have a total of 8, four on each side. Label the left side: CoDominance, Incomplete dominance, Polygenetic, Gametes, Label the first 2 flaps on the right side: Multiple alleles, label the 3 rd flap autosomes and the 4 th flap Sex linked

Incomplete Dominance – On the first flap write: – Heterozygous phenotype is halfway in between the two homozygous phenotypes Red flower x white flower = pink flower!!! RR X WW = RW Cut out the picture Color the flowers according to the key above and glue down under flap

Codominance Under the codominance flap write: – Both alleles contribute to phenotype Normal blood cells x Sickle blood cells = both normal and sickle cell blood. In this case it would be a positive change. People who are carriers for sickle cell disease are protected against Malaria! Find the sickle cell picture color it and glue it under the codominance flap.

Multiple Alleles Under the first flap write: – Many genes have MORE than two alleles Rabbit coat color (C, c, c ch, c h ) Human blood type (A, B, O) Blood type is written with the letter I to represent A and B which are codominate and i to represent O which is resessive. Find the blood type picture and color each row a different color then glue it down under your multiple allele flap.

Polygenic Traits Under the polygenic flap write Traits produced by interaction of more than one gene Human skin color and height Always makes a bell shaped curve. Find the picture of polygenic traits, draw in the bell shaped curve and glue it down under your flap

Gametes Write the following under the gamete flap Gametes are sex cells, they have ½ the number of chromosomes as autosomes (23 instead of 46) Male gamete –sperm Female gamete – egg The gene for sex if on the Y chromosome so the Male decides the sex of the baby. 50 to 50 chance of having a male or female Find the picture and glue it under the flap

Autosomes Under the flap write The other 22 pair of chromosomes Carry information about everything else except sex Autosomal mutations are not passed to offspring. Example skin cancer Find picture cut it out and glue it under the flap.

Sex linked disorders Under the flap write: Sex link traits are traits carried on the X chromosome. Males have a 50 percent chance of inheriting a sex linked disorder. Females have a 25 percent chance. Why? Examples: color blindness, hemophilia, dunchee muscular distrophy Find the sex linked punnet square color it and cut it out and glue it under the flap.