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Short note on DNA

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Anonymous

13y ago
Updated: 6/12/2024

Well DNA can't really be in a simple explanation. It is a deoxyribonucleic acid that strands our genetic material together into a double-stranded genome. Not that simple really. All the theories and definitions complicate it way past what it should be. DNA is made up of genes which are made up of chromosomes and nucleotides. Every person with no mutation have 46 total or 23 pairs of chromosomes, 23 from their birth mother and 23 from their birth father. If there is more than 46 total it is classified as a mutation, although nothing maybe wrong with t individual person, and there could always be a physical defect from that. Nucleotides are what the double-stranded helix of DNA is made from. Pairs of molecules; the only four of which are involved are: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). They pair up as A to T and C to G. Unless it is RNA, those will always pair as that. In RNA the Adenine isn't there, is 'traded' for Uracil (U). So yeah - not all that simple. :)

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Wiki User

17y ago

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What is the short strand of DNA called?

The short strand of DNA is called the primer. It serves as a starting point for DNA replication by providing a free 3' end for DNA polymerase to begin synthesis. Primers are typically about 18-22 nucleotides long and are complementary to the template DNA strand.


What are short tandem repeats?

A short tandem repeat or STR is a type of polymorphism, where short sequences of DNA are repeated. It is a useful tool in forensics because the number of times a DNA sequence is repeated for a given STR varies between individuals.


What characteristic of short tandem repeat DNA makes it useful for DNA fingerprinting?

Short tandem repeat DNA is useful for DNA fingerprinting because it contains repeating sequences of 2-6 base pairs that can vary in length between individuals. This variation creates unique DNA profiles that can be used to differentiate between individuals. The high variability and stability of STRs make them ideal for forensic analysis and paternity testing.


How do short strands of DNA move in comparison to long strands?

Short strands of DNA move more quickly than long strands because they are smaller and can navigate through obstacles more easily.


During DNA replication the short sections of new DNA known as okazaki fragments which are eventually linked together by ligase?

Yes, during DNA replication, the lagging strand is synthesized in short fragments called Okazaki fragments. These fragments are later joined together by DNA ligase to produce a continuous strand. This process helps to ensure accurate and efficient replication of the entire DNA molecule.