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What type of bonding is responsible for maintaining the shape of the tRNA molecule?
hydrogen bonding between base pairs
What type of bond holds a nucleotide together and connects each nucleotide in a DNA strand?
The backbone of the nucleotides are composed of repeating ribose (in RNA) or deoxyribose (in DNA) and phosphates held together by phosphodiester bonds between the 5's and 3's of the ribose/deoxyribose.
What are the correct base-pairing rules of DNA?
The correct base-pairing rules ofr DNA. . .The base pairing rules for DNA areA pairs with TG pairs with CC pairs with GT pairs with A
What do Phosphates do for the body?
It impacts metabolism and regulates acid-base balance and calcium levels
What is a characteristic of the Brønsted-Lowry definition of acids and bases?
acc. to this concept , acids are proton donor and base are proton acceptor . reverse of these reactions are also acid base pairs and the pairs are known as conjugate acid base pairs . .
Before two strands of a DNA molecule can separate the bonds between the must be broken. a. phosphates c. ribose molecules b. base pairs d. alleles?
L Before two strands of a DNA molecule can separate, the bonds between the a. phosphates ribose molecules b. base pairs alleles Please select the best answer from the choices provided C D C. d. Mark this and return Next must be broken.
What base always base pairs with guanine?
In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.
What are the nitrogen base pairs in the DNA molecule?
A with T and G with C .
What is another name for a group of bases along a DNA molecule?
Base pairs.
The complementary base pairs in a DNA molecule are stabilized by?
hydrogen bonds
Explain the components of DNA and explain its functional relationship to RNA and protein?
DNA or Deoxyhydro-Neucleic Acid is composed of base pairs, nitrogen and phosphates. The nitrogen and phosphates form the backbone of the DNA structure and take the shape of a double helix with the base pairs on the inside and the backbone on the outside. Thus, a molecule of DNA is actually two separate chains interwoven. The base pairs contain the information and most of the time are protected on the inside of the helix. There are four base pairs, adenine, guanine, cytosine, and thymine (represented by the letters A, T, C, and G) A bonds with T, C bonds with G via hydrogen bonding. A cannot bond to either C or G. This is a major function of the structure of DNA in protecting the information it contains. Should a base pair be incorrectly placed, the molecule will not fold up correctly, and an enzyme will likely find the problem and insert the correct base pair. This base pair bonding makes duplicating the molecule quite easy. The DNA helix unwinds, leaving two separate strands. The base pair sequences on these two strands are complementary to each other. Where there is a C on the first chain, there will be a G on the other. So to copy the molecule, complementary base pairs can be inserted onto the open chain and a back bone bonded to the new base pairs and the resultant will be two identical helices of DNA. A similar mechanism is employed in DNAs transcription To RNA. To be read, the DNA molecule unwinds, leaving two complementary chains. The chain that contains the information starts with a certain sequence which labels it as the one containing useful information. RNA base pairs are inserted onto the DNA chain in the same manner as DNA base pairs would be to copy the molecule with a few exceptions. There is no RNA base pair for thymine, instead the base pair Uracil is used. Uracil is complementary to Adenine. The backbone is also subtly different, though its immaterial to the transcription process. Once completed, this molecule of messenger RNA is complementary to the molecule of DNA, whose information it now encodes. The messenger RNA is what the protein is constructed off of. Transcription enzymes are used for such purpose and have a triplet of base pairs on one end and a amino acid on the other. The triplet of base pairs lines up with a triplet on the messenger RNA and one by one a chain of amino acids is put together. once the transcription enzymes get to the end of the messenger RNA molecule, the protein folds up.
What is anticondon?
An anticodon is the three-base sequence on a tRNA molecule that pairs with a specific mRNA codon.
What are the complentary base pairs found in a DNA molecule?
Adenine - thymine Guanine - cytosine
What is the normal pairing of nitrogen bases found in a DNA molecule?
In DNA, the nitrogen base adenine (A) pairs with the nitrogen base thymine (T), and the nitrogen base cytosine (C) pairs with the nitrogen base guanine (G). So the base pairs are A:T and C:G. One way to remember is that A:T spells the word "at."
Why does DAN have to replicate before a cell can divide?
is DAN have to reprice , the DAN molecule unzips of the base pairs
One DNA molecule in a single human cell is made up of about billion base pairs?
two
What is relation between Dalton and kilo base pairs?
MW of a double-stranded DNA molecule = (# of base pairs) X (650 daltons/base pair) Average weight of a DNA basepair (sodium salt) = 650 daltons
