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What happens if you change the 9th base from adenine to cytosine in the DNA Strand?
Wiki User
∙ 10y ago
This would be a point mutation, which may be harmless, or could be lethal, depending on the protein in which it occurred.
Wiki User
∙ 10y ago
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How did you know which bases to use when you transcribed the DNA sequence to mRNA codons?
In transcription, the mRNA strand is formed by complementary base pairing of the template DNA strand. However we should note that the nitrogenous bases in mRNA are Adenine, Guanine, Cytosine and Uracil, while those in DNA are Adenine, Guanine, Cytosine and Thymine.So the mRNA strand would be formed by matching the A in DNA with U in mRNA, T in DNA with A in mRNA, C in DNA with G in mRNA and G in DNA with C in mRNA.I hope that helps!
If a change is made in the DNA strand it is called a?
A mutation
What happen to the bottom strand of DNA when there is a change in a base on the top strand?
Nothing happens immediately. But when the two strands separate and construct new strands. The bottom strand will replicate the old top strand. The top strand will create a changed bottom strand. The two new cells after cell division will have different genetic codes. Most changes stop at this point because the "NEW" code won't be viable. Now if the change on the top immediately changes the bottom. Then the cell itself stops functioning unless it is a viable change.
A change in the sequence of bases in a strand of DNA that occurs as a result of exposure to x-rays is an example of?
mutagens
Adenine and thymine mutation in sickle cell?
yes. thymine replaces adenine in the dna that codes for the amino acid on the 6th position of the beta globin chain resulting in an amino acid change of glutamic acid to valine. shari (med student - jamaica)
Which RNA base bonded with the Thymine?
In RNA, the nitrogenous bases change and there is no longer Thymine, instead Uracil replaces Thymine but it bonds with the same base pair ( Adenine) as it would in DNA. In other words DNA base pairs are : Adenine- Thymine, Guanine-Cytosine. RNA base pairs are : Adenine- Uracil, Guanine-Cytosine.
How did you know which bases to use when you transcribed the DNA sequence to mRNA codons?
In transcription, the mRNA strand is formed by complementary base pairing of the template DNA strand. However we should note that the nitrogenous bases in mRNA are Adenine, Guanine, Cytosine and Uracil, while those in DNA are Adenine, Guanine, Cytosine and Thymine.So the mRNA strand would be formed by matching the A in DNA with U in mRNA, T in DNA with A in mRNA, C in DNA with G in mRNA and G in DNA with C in mRNA.I hope that helps!
What is a change in the DNA?
A change in the DNA means that one of the chains were changed for example: adenine equals thymine and somehow one of them were changed into like cytosine and the other changed into Guanine.
What is changes in the DNA?
A change in the DNA means that one of the chains were changed for example: adenine equals thymine and somehow one of them were changed into like cytosine and the other changed into Guanine.
What happens to the bottom strand of DNA when there's a change in a base on a top strand?
Nothing happens immediately. But when the two strands separate and construct new strands. The bottom strand will replicate the old top strand. The top strand will create a changed bottom strand. The two new cells after cell division will have different genetic codes. Most changes stop at this point because the "NEW" code won't be viable. Now if the change on the top immediately changes the bottom. Then the cell itself stops functioning unless it is a viable change.
What do the 4 letters A C G and T in DNA mean?
adenine-cytosine-guanine-thymine-cytosine-guanine (adenine, cytosine, guanine, and thymine are parts of nucleic acids) Adenine, Cytosine, Guanine, and Thymine are the basic building blocks of DNA. These are all important bits and pieces of the code that can distinguish many of our different characteristics. There is an important code that must be kept at all times, it doesn't matter the order it's in as long as A is with T and G is with C. If the code is wrong ( for ex: A with G, or C with T) it may result in a genetic disorder or a rare change in that person.
Why are two new strands of DNA exactly like the old strand?
The new strands have new complementary bases on one side and the other is made of the original strand. A strand of DNA has two strands that are complementary to each other in a double helix. When it gets copied one side is used as a template for the new side being added on, the bases cytosine and guanine match up and the bases adenine and thymine match up to each other. For example: If the original DNA strand has this order: 3' G-A-T-A-A-C-C 5' then the new complementary strand has: 5' C-T-A-T-T-G-G 3'
What are small sections of a DNA molecule that determine genetic traits called?
Bases. There are 4 different bases (in DNA not RNA) They are Thymine, Adenine, Guanine and Cytosine. Thymine joins to Adenine and Guanine joins to Cytosine (connect by hydrogen bonds). Different base sequences = triplet codes and different triplet codes change tertiary structure of proteins and alleles change.
If a change is made in the DNA strand it is called a?
A mutation
Is a rolling a ball of clay into a long strand a chemical change?
its physical change
What happen to the bottom strand of DNA when there is a change in a base on the top strand?
Nothing happens immediately. But when the two strands separate and construct new strands. The bottom strand will replicate the old top strand. The top strand will create a changed bottom strand. The two new cells after cell division will have different genetic codes. Most changes stop at this point because the "NEW" code won't be viable. Now if the change on the top immediately changes the bottom. Then the cell itself stops functioning unless it is a viable change.
Why does DNA have thymine when RNA has uracil?
Cytosine bases may spontaneously change into uracil bases. DNA has an enzyme asssociated with it that corrects this fault. If DNA contained uracil as a base, the repair enzyme would have no way of distinguishing between uracils normally present in the DNA code and uracils that had formed from cytosine. Therefore thymine is present instead of uracil.
