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Tresset [83]
3 years ago
8

Which enzyme can repair breaks to the phosphate-sugar backbone of dna?

Biology
1 answer:
Lady bird [3.3K]3 years ago
4 0

Answer:

Helicase unwinds the DNA and creates the replication fork for other enzymes to bind.

Explanation:

I hope this helps :)

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Natural selection is based on Darwin’s observation that individuals most likely to survive and reproduce are those _____.
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Answer:

Explanation:

Natural selection is based on Darwin’s observation that individuals most likely to survive and reproduce are those with traits best suited to their current environment.

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-Present-day mitochondria and chloroplasts probably evolved as a consequence of early endosymbiosis: the ancestor of the eukaryo
nata0808 [166]

Answer:

The evidence suggests that these chloroplast organelles were also once free-living bacteria.

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The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them.

:)

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Use your observations from the lab activity/lab video and the data tables to explain how salinity affects the way cold water fro
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Answer:

The link doesn't work but it is known that when you add salt to ice, the ice not only melts but will actually get colder.

hope this at least helped you :>

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During the drought of 1977 on the island of Daphne Major, which of the following answers correctly explains why birds with
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These birds with large beaks were better able to utilize the large seeds.(B)

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Use the concept of natural selection to explain how a population of moths might evolve if only a few members can blend in with t
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Answer:

A great example is the peppered moths evolution. Since the Industrial Revolution the birch trees started to turn black from the soot. This casued all the white moths to be eaten from birds. The ones that were left to mate were black moths which favored the black gene. So overtime black moths became more common. They were naturaly selected based on color to survived and pass down their black colored genes.  

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