*emergency* ! true or false? 13. all synaptic transmission is electrical rather than chemical. 14. acetycholine, discovered by otto loewi was one of the first neurotransmitter chemicals identified and is released from nerve endings to decrease heart rate. 15. when you send a message from your skin that you've touched something hot, a motor neuron sends the message to the brain.

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds? first generation y y y yy yy y yy yy second generation y y y yy yy y yy yy there is a % chance that the offspring will have green seeds.

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.