Part IV Transposable Element branching gene to Emily looked down at her workshee

Question

Part IV Transposable Element branching gene to Emily looked down at her worksheet and said, "So domestication caused the expression of the rise, right? Professor Griffin leaned back in the chair and said, "To answer this question, we first need to know what is differen between maize and teosinte tbl. A small picce of DNA called the transposable element is present near the tb1 gene in maize, but not in teosinte. The insertion of this transposable element is responsible for the increased tbl expression in maize. What makes it interesting is that this insertion can be dated to around 10.000 years prior to maize domestication. Emily's eyes widened. "Oh, I know, this means that .. Question 1. Finish Emily's sentence for her in the space below. Did domestication cause the expression of the branching gene to rise

Explanation / Answer

So, during domestication the maize undergone transformation in plant and inflorescence architecture as compared to teosinte. The stalk of teosinte has long branches that has small ear of grain at every node and on the other hand stalk of the modern maize has only one or two branches each having large grain of ear. Because of this size the small ears of teosinte only have around 10 kernels whereas the large ear if modern make have around 300 or more kernels and that is why maize have greater apical dominance and development of branches repressed the relative development of main stalk.

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