NMendelian
Storyboard Text
- I am Almira together with my partner, Alex. We are going to discuss Incomplete Dominance, Codominance, and Multiple Alleles
- INCOMPLETE DOMINANCE, and CODOMINANCE
- Let's begin first with Incomplete Dominance. Incomplete dominance causes the two alleles to blend together, resulting in a third phenotype that is a combination of the two. The phenotype created has little resemblance to either parent.
- As an example for Incomplete Dominance, we have the crossing of white flower and red flower. When they cross, all their offspring will be pink flowers, a completely new phenotype.
- As for the Codominance example, we have the most common which is the AB blood type.
- INCOMPLETE DOMINANCE, and CODOMINANCE
- Both alleles are expressed in the progeny in codominance. When a red flower and a white flower are crossed, the result is flowers with red and white spots. On the offspring, both parent phenotypes are visible.
- The Second One is CODOMINANCE
- We will now proceed with Multiple Alleles.
- MULTIPLE ALLELES, AND POLYGENIC INHERITANCE
- multiple alleles is described, and even if a trait is controlled by more than two alleles, each offspring only inherits two.
- Multiple Alleles is when a trait is controlled by more than two alleles.
- As an example of multiple alleles, we have the ABO blood system.
- That is all for our presentation today. Thank you!
- MULTIPLE ALLELES
- And for the Sex Limited Inheritance example, we have here lactation, or milk production. Although the genes for producing milk are carried by both males and females, only lactating females express these genes.
- LETHAL ALLELES, AND SEX LINKED INHERITANCE
- That is all for our presentation today. Thank you!
- As an example for Sex Influenced Inheritance, we have soft facial hair in females vs coarse facial hairs in males.
- And last but not the least, we have the Sex Limited Inheritance.Genes on autosomes determine sex-limited traits, which are expressed or visible only in one sex. Sexual dimorphism is caused by them.
- We'll move on to Sex Influenced Inheritance now. Sex-influenced traits are autosomal traits that are impacted by sex but do not express themselves differently in men and women.
- NON-MENDELIAN INHERITANCE
- Congrats to us, Alex!
- Job Well done, Almira!
- You can all go now. Class dismissed.
- I hope that you learned a very useful information regarding the Non-Mendelian Inheritance.
- Job well done, class! I am impressed with your reporting.
- Congrats to us, guys!
- Thank you, ma'am!
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