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Hunter-Best [27]
3 years ago
6

Which statements are correct concerning human DNA?

Biology
1 answer:
Zina [86]3 years ago
8 0
The statements that are correct concerning human DNA are it does contains 46 chromosomes and each strand contains chromosomes from one parent. There are 23 matched pairs of homologous chromosomes that make up the 46. One chromosome in each pair will be from a mother and the father. 
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Which of the following describes an impact of floods on ecosystems?
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Soil erosion is the impact of floods on ecosystems because the floods moves very fast which takes soil with itself. Due to soil erosion, the productive layer of the soil or the layer in which nutrients are present are eroded which has a negative impact on the plants due to unavailability of nutrients. The floods moves very fast and the soil has no the ability to hold its particle tightly which leads to erosion of the soil that negatively affected the ecosystem.

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Why arent descriptive investigations repeatable?
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Descriptive investigations are not repeatable because they are based only on observations made at a single point in time. The results may vary at a different time. In addition, descriptive investigations do not contain variables that may indicate cause-and-effect relationships.

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6 0
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olganol [36]

Step 1: DNA replication begins at the origin of replication

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Step 5: In the leading strand RNA primase moves along nucleotides and coats with a RNA primer.

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Step 7: Another type of polymerase replaces the primer with DNA nucleotides so all DNA is there

Step 8: Ligase stitches up the gaps.

Hope this helps!!!

If it does Rate, Thank, and MAKE ME BRAINLIEST. :ppp

6 0
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