These are statements or phrases that surround a word that help to explain its meaning.

1 answer:

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Statements that surround a word that help to explain its meaning are called CONTEXT OR CONTEXT CLUES.
The meaning of a word can be derived from the context clues that surrounded it. A word may have different meanings depending on the type of context in which it is found.

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Which type of microscope has the lowest magnification power?

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Answer:

Scanning Objective Lens

Explanation:

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Why is fruit salad not an example of a solution

Dovator [93]

Answer:

Its not a solution because it is a mixture.

Explanation:

All the fruit in it says that it is not a solution yet a mixture. There a different ingredients. Which means that it is a mixture.

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Which of these statements is true about the oxygen revolution?

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According to a source the answer is Cyanobacteria were the first organisms to produce oxygen in water, which then escaped into the atmosphere.

These cyanobacteria species were the first ones to "produce" oxygen as a by-product of the photosynthetic mechanisms which enables organisms to make their own food.

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You are performing a biochemical purification of enzymes involved in DNA replication. You have purified the replisome. You wish

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Confirm that the sample has both helicase and primase activities, but not the ability to synthesize DNA

The replisome is a multiprotein-RNA complex that is required for the replication of DNA. The replisome consists of different proteins which include:

1. Helicase enzymes that unwind and separate the DNA strand

2. Replication factor C (RFC), a DNA-dependent ATP that acts as an activator of DNA polymerase.

3. Proliferating cell nuclear antigen (PCNA)

4. DNA gyrase/topoisomerase that cuts and reseals DNA strands, which is essential for DNA synthesis.

5. Primase enzyme that synthesizes short RNA fragments called primers.

6. DNA polymerase III, an enzyme that catalyzes the polymerization of deoxyribonucleotides into a DNA strand.

7. DNA ligases enzymes that form phosphodiester bonds at a single-strand break in DNA

A primosome is a multiprotein complex responsible for creating RNA primers on single-stranded DNA (ssDNA) during the replication process.

The primosome is composed of different primase and helicase enzymes. In Escherichia coli, it consists of PriA helicase, PriB, PriC, DnaB helicase, DnaG (encoded by the dnaG gene), DnaC and DnaT primase.

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Describe the difference between a cladogram and a phylogenetic

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Cladograms are concerned with the way organisms are related to common ancestors through shared characteristics. Phylogenetic trees compare organisms over evolutionary time and the amount of change that has occurred over time to figure out the relationships.

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