How is yeast used?

a. to kill protists that cause disease

b. to make bread rise

c. to make cheese

d. to kill bacteria that cause disease

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Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do