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kirza4 [7]
3 years ago
13

Please help meeeeeeee is this correct

Biology
2 answers:
posledela3 years ago
8 0

Answer:

I think so

Explanation:

Amanda [17]3 years ago
4 0

Answer:no

Explanation: the 1st 4th 5th and 6th is wrong

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Someone help me please
frez [133]
1. Two genetically identical copies of DNA

2. Finds an error in DNA, removes the incorrect nucleotide and replaces it with a correct one.

3. It is used as a copy/ "template" for replication in order to have two identical copies of DNA.

4. DNA helicase unwinds DNA double helix and Topiosomerase ensure there isn't too much unwinding.

5. Replication has a built on proofreading system - DNA polymerase removes the incorrect nucleotide and replaces it with a correct one.
5 0
3 years ago
A mutation in _____ results in a change in _____ that sometimes produces a(n) _____ with altered structure and function.
xenn [34]

Answer:

A mutation in <u>DNA </u>results in a change in <u>RNA </u>that sometimes produces a <u>protein </u>with altered structure and function.

Explanation:

DNA is the hereditary material which causes gene expression in our body by producing protein. The type of protein which is produced by DNA totally depends upon the sequence of nucleotides in the DNA. But, DNA molecule does not produce protein directly. Initially it produces RNA (mRNA, tRNA, rRNA) by the process of transcription, the nucleotides in the RNA are complimentary to those in DNA. In short, the message regarding the structure and composition of the type protein to be produced by DNA is first decoded from DNA in the form of RNA. These RNA molecules then synthesize the protein as per the instructions from DNA by the process of translation.

But, in case a mutation occurs in the DNA which causes a change in it's nucleotide/nucleotides, the protein which will be produced will be different in the structure and function than the protein which was supposed to be synthesized. It happens because, a triplet of nucletiodes in the DNA and hence RNA specifies a particular type of amino acid and several amino acids are joined in a long chain to form polypeptide which ultimately forms protein. But, if any nucleotide in the triplet is changed due to mutation it may change the amino acid and if amino acid will change the protein will also get altered.

3 0
2 years ago
I don’t understand this
ratelena [41]
The answer would be d because the genes come the two parents 
6 0
3 years ago
A _____ climate zone, near a high-pressure band, encompasses hot, desert climates.
Nataly [62]
That would be temperature. (:

Hope this helps! 
6 0
3 years ago
Read 2 more answers
What of the following is the most directly responsible for the fixation of nitrogen ??
Alexus [3.1K]
The answer is Bacteria
3 0
3 years ago
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