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Draw and label a segment of DNA showing its helix and complementary base pairing?
Wiki User
∙ 7y ago
Wiki User
∙ 7y agoThe rules of base pairing (or nucleotide pairing) are:
A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T) and has 2 hydrogen bonds joining them together.
C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G) and has 3 hydrogen bonds joining them together.
So if your sequence is ATGCC the complimentary sequence would be TACGG and the hydrogen bonds between A and T would be 2, C and G would have 3.
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What is complementary sequence?
When DNA and/or RNA are in the double helix configuration each helix is the complementary sequence of the other.
How do you find a complimentry strand of DNA?
DNA usually comes in a double stranded helix, but if there is only one strand provided, complimentary base pairing occurs. Adenine and Thymine pair, as do Guanine and Cytosine. Given a sequence of DNA, using this, you can find its complementary strand.
The strict arrangement of base-pairings in the double helix results in 2 strands of nucleotides that are?
complementary
How many bases does a double helix have after the complementary strand is added?
double the amount of bases (or x2)
How are the strands held together in the double helix?
On a single strand of DNA the nucleotides are held together by covalent bonding between the phosphate group bonded to the 5' end of the deoxyribose, which bonds to another deoxyribose molecule attached to the next nucleotide on the strand at the 3' end of the sugar. This is what holds together a single strand. When two strands of DNA that have exactly complementary base pairing (Adenine bonds with only Thymine, and Cytosine with Guanine) the base forms a hydrogen bond to the base on the opposite strand, only if the base pairing is complementary. So, in short the double helix form is held together by hydrogen bonds between the bases present on the strand.
What is complementary sequence?
When DNA and/or RNA are in the double helix configuration each helix is the complementary sequence of the other.
DNA consists of two complementary strands wound together in a specific structure called a?
double helix
What is the explanation for the process of replication?
During DNA replication, the DNA molecule separates into two strands, then produces two new complementary strands following the rules of base pairing. Each strand of the double helix of DNA serves as a template, or model, for the new strand.
How do you find a complimentry strand of DNA?
DNA usually comes in a double stranded helix, but if there is only one strand provided, complimentary base pairing occurs. Adenine and Thymine pair, as do Guanine and Cytosine. Given a sequence of DNA, using this, you can find its complementary strand.
. How are complementary strands of DNA held together?
Complementary strands of DNA are held together by hydrogen bonds connecting complementary bases.
The strict arrangement of base-pairings in the double helix results in 2 strands of nucleotides that are?
complementary
How many bases does a double helix have after the complementary strand is added?
double the amount of bases (or x2)
How are the strands held together in the double helix?
On a single strand of DNA the nucleotides are held together by covalent bonding between the phosphate group bonded to the 5' end of the deoxyribose, which bonds to another deoxyribose molecule attached to the next nucleotide on the strand at the 3' end of the sugar. This is what holds together a single strand. When two strands of DNA that have exactly complementary base pairing (Adenine bonds with only Thymine, and Cytosine with Guanine) the base forms a hydrogen bond to the base on the opposite strand, only if the base pairing is complementary. So, in short the double helix form is held together by hydrogen bonds between the bases present on the strand.
Are the complementary bases of DNA located on the outside of the helix with the sugar-phosphate backbone on the inside?
Its vice versa
What is the base sequence along the complementary region of the other strand of the double helix if one is GAATGC?
CTTACG
What enzymes unwinding DNA double helix by breaking the hydrogen bonds to separate the complementary strands?
Helicase
What does base-pairing rules mean?
DNA is in a double helix which each of the two strands being complementary (i.e. opposites of each other).This happens because there are four base pairs: A, C, G, T. (Adenine, cytosine, guanine, thymine.)Each A can only bind with T. C can only bind with G.In DNA the base pairs are Adenine with Thymine and Guanine with Cytosine.In RNA Thymine is replaced by Uracil so the base pairs are Adenine with Uracil and Guanine with Cytosine.
