1.State the effect of multiple replication forks on the speed of replication in eukaryotes.
2.If a mutation occurs during DNA replication in the formation of an egg or sperm cell, why is that mutation inherited?
2007-12-11 08:55:22 · 3 answers · asked by Mathⁿ 4 in Science & Mathematics ➔ Biology
1. Multiple replication forks speed up replication in eukaryotes. Eukaryotic DNA is very large so the only way for it to be replicated quickly is with multiple forks. If you have multiple forks, then you have more enzymes working on replication.
2. If a mutation occurs during the formation of an egg or sperm cell it will be inherited in the offspring. Egg and sperm are germ cells, so this is the future DNA of the progeny. If any mistakes happen during meiosis, they will appear in the progeny.
2007-12-11 09:18:47 · answer #1 · answered by Kim 2 · 0⤊ 0⤋
1. This means that replication is going on in many places at the same time -- makes replication faster.
2. A mutation in an egg or sperm cell affects every cell in the resulting offspring. You know that an egg and a sperm join together to make the zygote. Then the zygote divides repeatedly to make all the cells of the offspring. A mistake in an egg or a sperm means that the zygote has a mistake in the DNA. So every cell formed from the zygote (which is all of the cells) will have the same mistake in the DNA.
2007-12-11 09:19:22 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
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2016-12-17 14:55:17 · answer #3 · answered by miceli 4 · 0⤊ 0⤋