2. In guinea pigs, rough coat R is dominant over smooth coat r and black coat B is dominant over white coat b. If smooth black animal is back-crossed a smooth white animal, the offspring
comprise 6 smooth black animals and 7 smooth white animals,
What are the genotypes of the parents?
[2]
b. Diagram the crosses showing all pertinent genotypes, phenotypes and gametes.
[8]​

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.