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tino4ka555 [31]
3 years ago
6

Explain true or false if you collect organize and interpret your data properly you will always be able to draw a logical conclus

ion
Biology
1 answer:
julia-pushkina [17]3 years ago
3 0
False you will not necessarily come up with a logical conclusion

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Suppose that in another world, DNA does not undergo semiconservative replication, but instead a conservative mechanism is used.
Liono4ka [1.6K]

Answer:

c. ¼ heavy, ¾ light

Explanation:

DNA replication follows semi conservative model which means that both the strands separate during replication and the newly formed DNA molecule has one old and one new strand. If instead of semi conservative, conservative mechanism is used, old strands will not separate from each other and the two newly synthesised DNA strands will come together to form a DNA molecule.

Here the cells were first grown in heavy 15N medium so all the DNA molecules had 15N and thus were heavy. Then the cells were transferred to 14N medium where only lighter 14N were available for replication process.

In first generation, 14N DNA molecules were synthesised from 15N DNA molecules so 1/2 DNA molecules were 15N and other half were 14N. In the second generation, 14N molecules will give rise to new 14N molecules and 15N molecules will also give rise to 14N molecules hence 1/4 molecules will be 15N (heavy) and 3/4 will be 14N (light).  

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List and briefly describe earths compositional layers
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Answer:

Compositional Layers

Layer Depth

Crust 0-100km silicates

Mantle 100-2900km iron and magnesium silicates

Core 2900-6370km metals

Hope this helps!!!

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8200000 in scientific notation
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8.2x10^6

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In some cases, a population of one species disperses throughout an area, and over time, one species evolves and becomes more. In
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