Friday, April 14, 2017

Recessive traits - Hannah Miller

* Recessive traits in definition is a trait that is carried by either, or sometimes both parents, that is not dominant. What this means is that unless both parents have that recessive trait it will NOT show in the offspring. That happens because Dominant will always overpower recessive if it is present.

* Recessive traits will only show in the offspring in a homozygous recessive relationship. What this means is that both parents carry that recessive trait and it is matched up with the same gene. 

* For example; A bunny is Homozygous recessive for blue fur, (bb) and the other bunny is heterozygous for white fur (Bb).  

As you can see from the image that two out of the four offspring of the bunnies will have blue fur because both parents carry the gene.

*It is possible for a parent to carry the recessive gene, but if it is a heterozygous the dominant trait will be the only trait showing. 

Fun fact! Genetic similarity. People share 7% of genetic material with the E.coli bacteria, 21% with worms, 90% with mice and 98% with chimpanzees.

Summary- All in all I already knew most of this stuff due to having learned about it in a different grade, but it doesn't stop the topic from being interesting. I wouldn't say that I learned anything new, other than that cool fact, but i've dived deeper into the topic and actually learned how to work out Punnet squares.

Citations; N.p., n.d. Web. <https://sketch.io/sketchpad/>. 
"Interesting Genetic Facts." Gene Planet. N.p., n.d. Web. 14 Apr. 2017. <https://www.geneplanet.com/genetics/interesting-genetic-facts.html#>.

2 comments:

  1. I like the example you used, very informative

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  2. This is incredibly usual and understandable to read. This will be a great help for studying for the EOC.

    ReplyDelete