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Aloiza [94]
2 years ago
14

Why must DNA replication have to occur before a cell can divide by mitosis?

Biology
1 answer:
otez555 [7]2 years ago
8 0
DNA replication needs to occur because existing cells divide to produce new cells. the DNA needs to be copied before cell division so that each new cell receives a full set of instructions
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) An allosteric interaction between a ligand and a protein is one in which: (3 pts) A) binding of a molecule to a binding site a
djverab [1.8K]

Answer:

B) binding of a molecule to a binding site affects the binding properties of another site on the protein.

Explanation:

In an allosteric interaction between a protein and a ligand, the ligand binds to a site in the protein. As a result, there is a change in the properties of other active sites on the protein. These active-site changes may or may not allow the protein to bind to other molecules. There is a change in the protein that affects the affinity of the active site for other molecules. The affinity on the active site increases if the protein binds to an activator and decreases if the protein binds to an inhibitor molecule.

5 0
3 years ago
The magnets point North when the Earth's magnetic field has (p2)<br><br>need some help :)​
Natali5045456 [20]
<h2><u>EARTH'S MAGNETIC FIELD</u></h2>

The magnets point North when the Earth's magnetic field has?

<h2><u>ANSWER</u></h2>

I think the best answer for this question is Magnetic Reversal or Geomagnetic Reversal.

In geomagnetism, the term "geomagnetic reversal" also known as 'flip', is the process by which the North pole becomes South pole and the South pole transforms into North pole.

<h2><u>THE MAGNETIC REVERSAL</u></h2>

The reversals happen on rare occasions when iron molecules start moving towards the opposite direction as other iron molecules around them within the Earth's spinning outer core.

7 0
2 years ago
In two or more sentences, explain how DNA replicates, including what percentage of the replicated strand is new vs. old.
k0ka [10]

Answer:

DNA replication is the process by which DNA makes a copy of itself during cell division

1 by unzipping the double helicase or the double helix structure of the molecule

2. the separation of two single strand of DNA

The percentage of the replicated strands of the new to the old is 50-50

6 0
3 years ago
Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two
Romashka [77]
B because the genotypes of the parents would be Pp because they are heterozygous. The genotypes they could inherit are PP, Pp, Pp or pp.

6 0
3 years ago
Red and white roses are crossbred neither are dominant The offspring would be because of
Kruka [31]

Answer:

pink since neither are dominant

Explanation:

5 0
3 years ago
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