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oksian1 [2.3K]
2 years ago
11

Why is it necessarry for DNA to replicate itself?

Biology
2 answers:
Orlov [11]2 years ago
7 0
Producing exact copies of DNA ensures that when a cell divides, the offspring will receive the same genetic information as the parent cell. ... They will always match up with each other in the DNA strands.

DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!
Oksana_A [137]2 years ago
3 0

Answer:

Like Many time's I've looked the answer up ;)

DNA replication needs to occur because existing cells divide to produce new cells. ... So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!

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A simplified model of the human blood-type system has four blood types: a, b,ab and o. thereare two antigens, anti-a and anti-b.
Kay [80]
First calculate the probability of type AB, which is the remainder after subtracting types A, B and O.

P(AB) = 1-(0.34+0.12+0.5) = 1-0.96 = 0.04

Anti-b will react with types B and AB, so 
P(reaction) = P(B)+P(AB) = 0.12 +  0.04 = 0.16

Answer: For this person, the probability of reaction with anti-b is 0.16
8 0
3 years ago
In which Kingdom are chloroplasts NOT present?
Dimas [21]
Answer:
Fungi

I hope this helped :)
8 0
3 years ago
a reaction that hydrolyzes a phosphodiester bond would cleave a dna molecule between a phosphate group and:
Gnoma [55]

Reactions that hydrolyze the phosphodiester bonds split the DNA molecule between the phosphate groups and the hydroxyl groups of the two sugar groups.

In DNA there is a covalent bond through a phosphate group that connects the hydroxyl group (OH) at the 5' position of the pentose sugar and the hydroxyl group at the 3' position of the pentose sugar of the next nucleotide. This covalent bond is called a phosphodiester bond because chemically the phosphate group is in the diester form.

In other words, the phosphodiester bond connects the sugar in one nucleotide to the sugar in the next nucleotide, so this bond simultaneously connects the two consecutive nucleotides to form a polynucleotide chain. If there is an enzyme that catalyzes the hydrolysis of covalent bonds that combine nucleotides, what happens is that the phosphodiester link between deoxyribose sugars will break.

Learn more about the phosphodiester bonds at brainly.com/question/23660733

#SPJ4

6 0
1 year ago
Proteins that assist in the movement of substances across membranes can be classified into two types based on how they move solu
kykrilka [37]

Proteins that assist in the movement of substances across  can be classified into two types which are:

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<h3>What are Proteins?</h3>

These are biological molecule which consists of amino acid sequences and are involved in metabolic activities in the body.

They are also found in cells and help in the selective movement of molecules in and out of the cell.

Read more about Protein here brainly.com/question/10058019

3 0
2 years ago
Which statement best explains how to draw a cladogram that includes the rynchosaur?
romanna [79]

The correct answer is option B

A cladogram can be defined as a diagram that uses cladistic to show the relation among the organisms. Many evolutionary trees can be made from a single cladogram but the cladogram cannot be considered as the evolutionary tree because it does not shows that how the ancestors of the species is related to the descendants.

The cladogram of reptiles are made.




3 0
3 years ago
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