The HEXA gene codes for a protein that breaks down and recycles toxic substances in our brain and spinal cord. Mutations in the HEXA gene lead to Tay-Sachs disease. This is a disorder in which the level of toxic substances builds in the brain and spinal cord, leading to severe brain damage and eventually death. In many patients with Tay-Sachs, an insertion of four base pairs is seen in the HEXA gene. In general terms, explain how this insertion impacts the protein that is produced

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Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.

Blank is a rock with a find dark texture that makes up the oceanic crust