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Many diabetics are now using insulin that was made by certain bacteria The ability of these bacteria to produce insulin was most likely the result of?
Inserting a portion of human DNA into the ring shaped DNA of bacteria
Who discovered DNA in what year?
The discovery of deoxyribonucleic acid, otherwise known as DNA, was made by Frederick Miescher, but the structure was discovered by James Watson and Francis Crick in 1953.Rosalind Franklin produced vital images of DNA through x-ray crystallography with which Watson and Crick were able to deduce the structure of DNA. Watson and Crick acquired Franklin's data (without her permission) and used it to propose a structure for DNA, which is now known to be correct (B form DNA). Some other data, other than Franklin's, was also taken into account.As a result, Watson and Crick are largely recognized as discovering the structure of DNA for the first time, but it was really Watson, Crick and Franklin (among other, less influential, work by other scientists).
What happens when genes are altered by a deadly virus?
they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous
Splicing DNA from two different organisms produces a new DNA segment called?
When DNA contains parts from two or more organisms it is recombined. Recombinant DNA is often used in genetic engineering. A natural process of DNA recombination is called sexual reproduction.
Why does DNA absorb more light when it is converted into single strands?
in double stranded dna, the sugar phosphate backbone forms the the outside of the double helix and the information is found within (the complementary base pairs). When you heat up double stranded DNA, the DNA begins to unwind. The increases in temperature breaks the hydrogen bonds between the complementary base pairs and they now have become "unstacked" / exposed = (single stranded DNA). This allows the the single stranded DNA to absorb more light.
What did Watson and Crick do after they discovered DNA?
Watson and Crick did not discover DNA - it had been isolated, then called nuclein, in 1869. What remained unknown was the structure of DNA - this is what Watson and Crick proposed. After they came up with a structure for DNA (1953), they went to 'The Eagle' pub in Cambridge, just round the corner from their lab, and Crick announced to the other customers that he and Watson had discovered 'the secret of life'. The Eagle now has a plaque commemorating the event. They also wrote a letter to Nature, though presumably not while at the pub. Watson and Crick did not discover DNA. What they did was examine the data collected by others, and propose a structure for the DNA molecule.
Many diabetics are now using insulin that was made by certain bacteria The ability of these bacteria to produce insulin was most likely the result of?
Inserting a portion of human DNA into the ring shaped DNA of bacteria
Who discovered DNA in what year?
The discovery of deoxyribonucleic acid, otherwise known as DNA, was made by Frederick Miescher, but the structure was discovered by James Watson and Francis Crick in 1953.Rosalind Franklin produced vital images of DNA through x-ray crystallography with which Watson and Crick were able to deduce the structure of DNA. Watson and Crick acquired Franklin's data (without her permission) and used it to propose a structure for DNA, which is now known to be correct (B form DNA). Some other data, other than Franklin's, was also taken into account.As a result, Watson and Crick are largely recognized as discovering the structure of DNA for the first time, but it was really Watson, Crick and Franklin (among other, less influential, work by other scientists).
How can DNA fingerprints determine your family?
Since DNA fingerprints are (up to now) unique to every individual - the closer your DNA matches another person - the more likely you are to be related to that person's family.
What are the structures of the immune system?
- the structure of the immune system is not held within a certain structure
What happens when genes are altered by a deadly virus?
they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous they change their DNA and turn into a virus and can now be dangerous
What do you use pendulum for?
The pendulum has been used mainly as a timing device, and is part of the structure of a grandfather clock (of course, we have more compact, efficient, and accurate clocks now, but the older technology still has a certain nostalgic charm).
Splicing DNA from two different organisms produces a new DNA segment called?
When DNA contains parts from two or more organisms it is recombined. Recombinant DNA is often used in genetic engineering. A natural process of DNA recombination is called sexual reproduction.
What type of characteristics are used to classify organisms?
In the past, classification relied on body structure, internal and external, as well as mode of reproduction. The change now is that scientists are using DNA to fine tune classification.
Why do scientists need to create models of proteins and DNA on a computer?
To help with the structure of protein is to help our body with its energy system
How does NaCl help extract DNA?
NaCl stabilizes the the double helical structure of DNA. It also provides Na+ that neutralise the negative charge present on DNA. Due to the negative charge the DNA molecules repell each other. When the charge is neutralized the DNA molecule come together and could be precipitated.
What is the change in the nucleotide sequence of DNA is called?
A change in the nucleotide sequence of DNA is called a mutation.Mutations take several forms:* substitution: one base is replaced by another* deletion: one or more nucleotides disappear from the sequence and the rest close up* insertion: one or more nucleotides appear between what had been adjacent nucleotides* duplication: a form of insertion in which a sequence of nucleotides is copied and now appears twice instead of once. Mutations can be caused by certain types of radiation, including ultraviolet (UV), and certain chemical compounds, which are therefore referred to as mutagenic.Mutations are particularly likely to occur at a point during replication of DNA when the two strands are separated.
