DNA
The gentic matirals in the cells is contained in this
What id DNA
Identifed DNA in 1869
Who was Friedrich Miescher?
the process in whihc a cell makes copies of DNA molucles
What is replication?
What is a mutation?
is the use and application of living things and biological proces
What is biotechnology?
What shape in DNA in
What is a double helix
In 1919 wrote a paper about the sugars that DNA is made of
Who was Phoebus Levene?
When are DNA strands copies
when a bases is left out
What is a deletion?
is the process of selecting and breeding organisms that have certain disired traits.
What is arificial selection?
a base, a sugar, a phospahate group makes up the building blocks of DNA is called a
Who found out that all of the sugars in DNA must be equal to one another?
Who was Erwin Chargaff?
has a sugar, phospate backbone, and four bases adenine, guanine, cyotine and uracil.
What is RNA
extra base is added
What is insertion?
the process in which a piece of DNA is modified for use in resarch medicine, argiculture, or industry
What is gentic enineering?
adenine, thymine, cyostine, guanine
What are the bases in DNA
In 1951 they were the first people to make an image of DNA?
Who were Rosalind Franklin and Maurice Wilkins?
a cell organelle made of ribosmoal RNA and protain
What is ribsome?
when one pass replaces another
What is a subsititon?
is an organism, cell or gentic matiral that is gentically identical to the one from which it is divered
What is cloning
are segments of DNA related to a certain trait
What are genes
Who made the first DNA models
Who were James Watson and Francais Crick?
results form a mutation that harms the normal funtion of a cell.
What is a gentic disorder?
physical or chemical agents that cause mutations
example- cigrette smoke and ultravoilet light
What are mutagons
What is an example of clonig
What is Dolley