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What is known about the genetics of Tenebrio molitor?

What is known about the genetics of Tenebrio molitor?. question answered by jordan yaron. What is Genetics?. Genetics is the basis for what makes everybody and everything individual and unique .

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What is known about the genetics of Tenebrio molitor?

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  1. What is known about the genetics of Tenebrio molitor? • question answered by jordan yaron

  2. What is Genetics? • Genetics is the basis for what makes everybody and everything individual and unique. • The DNA (information held within chromosomes) from two different organisms are combined to create one unique organism. • Popularized by Gregor Mendel in 1865

  3. DNA? Chromosomes? 11001101001011010011011001101001 • DNA is deoxyribonucleic acid. • The double helix - The basis for life • Read by the body like a line of “code.” adenine guanine cytosine thymine • Chromosomes are genetic carriers • Tightly wound structures of DNA • This is how DNA is contained within cells (10,000 to 1,000,000,000 nucleotides - letters of code)

  4. Our friend, the Mealworm • In 1905, Nettie M. Stevens reinforced, via experiments on T. molitor, the concept of sex/gender determination based on dominant and recessive chromosomes • T. molitor contains 10 pairs of chromosomes (20 total, versus the 23 pairs/46 total in humans) • Males have a smaller, recessive chromosome in one pair (the “Y” chromosome) • Thus, males are “XY” and females are “XX”Source: http://www.ncbi.nlm.nih.gov/pubmed/389882

  5. What else? • Other studies have shown that T. molitor’s genetics follow the general dominant-recessive principle: • The color of the hard outer layer (cuticle) has been linked to genetic inheritenceSource: (Armitage, et al: http://www.nature.com/hdy/journal/v94/n6/full/6800675a.html) • Interestingly, there are links between the color of the cuticle, and naturally inherited pathogen (germ) resistance in T. molitorSource: (Armitage, et al: http://www.nature.com/hdy/journal/v94/n6/full/6800675a.html) • Occasionally, there exist “XYY” T. molitor, with two male-sex chromosomes; while this is considered a complicated system, it has not been shown to differentiate the selection of males and femalesSource: (Kido, et al: http://www.journalarchive.jst.go.jp/english/jnlabstract_en.php?cdjournal=pjab1977&cdvol=61&noissue=8&startpage=368)

  6. My Question for You... ? • We now know that examples of genetic inheritance in T. molitor are sex and color. • Based on the genetics of Tenebrio molitor, what are some possible characteristics in humans that could be related to genetic inheritance?

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