First comes fertilization, when two gametes combine to form a zygote.
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I am 95% sure its b, if not then it is c
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The egg contains both food and mitochondria in addition to its vital DNA, thats why it is much larger. The sperm cell has to be much smaller than the egg cell, because it is the one that swims. If a sperm cell were as big as an egg, it would not be able to move very fast nor very far.
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you sniff it with ur nose
Recessive. I don't know the topic of your question so I dont fully know. but if you are talking about dominant and receive then white would be a receive gene.