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dimulka [17.4K]
9 months ago
6

Sequence and model each step in the replication of a DNA

Biology
1 answer:
Karo-lina-s [1.5K]9 months ago
7 0

The sequence and model each step in the replication of a DNA

molecule are:

a) the DNA unzips

b) the nucleotides in the cell attach to the unzipped chains

<h3>How is DNA replicated? </h3>

The act of replicating one double-stranded DNA molecule into two additional ones is known as replication. One of a cell's most fundamental functions is the replication of its DNA. Opening the double helix and separating the DNA strands, priming the template strand, and putting together the new DNA segment are the three main phases in the replication process.

The DNA double helix uncoils its two strands at a site known as the origin during separation. The strands are subsequently primed, or made ready, for replication by a number of proteins and enzymes. The construction of the new DNA strands is then orchestrated by a unique enzyme known as DNA polymerase.

The other steps involved are:

c) the molecule continues to unzip, and the nucleotides continue to join

d) two new DNA molecules form, each containing one parental and one new strand.

To learn more about replication of a DNA, visit:

brainly.com/question/16464230

#SPJ1

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What must happen before a chemical reaction can begin?
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when seen on a Wright-stained peripheral blood film, a young red cell that has just extruded (lost its) its nucleus is referred
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Answer:

When seen on a Wright-stained peripheral blood film, a young red cell that has just extruded (lost its) nucleus is referred to as a polychromatophilic cell.

Explanation:

On Wright-stained smears, slightly immature red cells that do not have nuclei (reticulocyte stage) look blue-gray because they still have some ribonucleic acid in them (RNA). These cells are commonly referred to as polychromatophilic cells. Most of the time, polychromatophilic cells are bigger than mature red cells, and their blue-gray color makes them different from macrocytes.  Polychromatophilic red cells also tend to lack the central pallor.

When the remaining mRNA and ribosomes are stained with supravital dyes, they make the red cells look like a "reticular" mesh network. This is how the name "reticulocyte" came about. It is to be noted that not all reticulocytes show up as polychromatophils when stained with Wright-Giemsa.

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