cyto
Storyboard Text
- Leah shows Lily around the farm, using the various animals to elaborate her discussion of the topic to her sister.
- One pattern is incomplete dominance, wherein there is a blending of the two alleles resulting in a third phenotype which is a mixture of both alleles. An example is this baby rabbit. As you can see, its parents are black and white. But the baby rabbit has a grey fur, showing a blend of its parent's color of fur.
- Oh! Now I get it. Ate, I actually understand the concept of Codominance, and this cow is an example! The traits both alleles for a gene are expressed equally.
- Now, Lily asked what examples can be considered as Polygenic Inheritance.
- Great! Cookie is here, and his coat color is an example of Polygenic Inheritance. Different genes control the distribution, density, and type of pigments in the hair, resulting in a wide range of coat colors and patterns.
- Oh! That is why he has this really beautiful coat color. I always wondered why there were different colors and patterns of dog coat.
- Now, Leah discusses the last type of Non Mendelian Inheritance to Lily.
- Lastly, take these color of feathers of the chickens. It is an example of sex-linked inheritance. While egg-laying is a sex-limited inheritance as only female chickens can do this. And finally, sex-influenced inheritance is seen in these sheep, as their horns are expressed differently in genders, which affect the manifestation of traits.
- Now, did you get the concept of Non Mendelian Inheritance? I hope you ace your exam tomorrow, Lily!
- I did! Thank you for making things so much clearer, Ate!
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