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attashe74 [19]
2 years ago
13

Wheat has approximately 23% Guanine in its double stranded DNA. Approximately how much thymine will be found in this species

Biology
1 answer:
Crank2 years ago
7 0

Answer:

27%

Explanation:

Guaine always pairs with cytosine

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The answer to this question is 2n
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What molecule is represented by the molecular module shown below?
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Why can't both strands of DNA be replicated at the same time?
saw5 [17]

Answer: DNA is a molecule made up of two strands, twisted around each other in a double helix shape. The two strands are complementary which have a 5 prime end and a 3 prime end. To understand this question you must first understand the steps that follow.

DNA Replication:

<u>Step one: </u>

DNA Helicase (unzips) separates the strands.

<u>Step two:</u>

DNA Primase starts the process and makes a small piece of RNA called a primer. This marks the starting point for the DNA.

<u>Step three:</u>

DNA Polymerase binds to the primer and will make the new strand of DNA. DNA Polymerase can only add DNA bases in one direction, from the 5 prime end to the 3 prime end.

  • The leading strand is made continuously.
  • The lagging strand does not run continuously because it runs in the opposite direction. Each fragment is started with an RNA primer. DNA Polymerase then adds a short row of DNA bases from the 5 prime to 3 prime direction. This results in okazaki fragments because it can only replicate in small chunks. The process is repeated.

<u>Step four:</u>

Once the new DNA is complete the enzyme exonuclease removes all the RNA primers from both strands of DNA.

<u>Step five:</u>

Another DNA Polymerase fills in the gaps that are left behind with DNA.

<u>Step six:</u>

DNA Ligase seals up the fragments in DNA, in both strands to make a continuous double strand.

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DNA Replication cannot replicate at the same time due to the leading and lagging strand.

Good luck!

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3 years ago
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. Given that 3 of the 64 possible codons are stop codons, what is the chance of having a stop codon at any given position, assum
ANTONII [103]

Answer:

1 - (\frac{61}{64})^n

Explanation:

Given

There are three stop codon

TAA, TAG, TGA.

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So the probability of choosing a non stop codon is

\frac{61}{64}

Let us suppose the number of trials are "x" then the probability of choosing a non stop codon is  

(\frac{61}{64})^x\\

Probability of choosing a stop codon is equal to

1 - probability of choosing a non stop codon

1 - (\frac{61}{64})^n

4 0
2 years ago
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