Question

1. The DNA sequence of one human being is on average 99.9% identical to another random human being. 2. As of 2009, all living human beings have had their entire genome sequenced. 3. The nucleotide bases present in a DNA sequence are A, T, G, C. 4. Techniques that enabled scientists to clone genes were developed in the 1970s. 5. A restriction enzyme is useful because it is a specific enzyme that recognizes and cuts specific DNA sequences. 6. Ligation of 2 DNA fragments is an enzyme-catalyzed reaction. 7. Plasmids are circular, double-stranded DNA molecules. 8. The gels used in gel electrophoresis are made of gelatin-like materials such as agarose or polyacrylamide. 9. PCR stands for polymerase chain reaction. 10. Using recombinant DNA techniques, scientists can join DNA fragments from different species. 11. The process of DNA transfection is not always 100% successful. 12. A standard recombinant DNA procedure is to use antibiotics to select cells that have been successfully transfected with a recombinant plasmid. 13. To determine if a DNA fragment has been successfully inserted into a plasmid, a scientist can analyze the DNA of the plasmid. 14. The standard procedure of gel electrophoresis separates DNA based on size, with smaller fragments moving faster than larger fragments. __ 15. A chemical called ethidium bromide is often used to visualize DNA that has been subjected to gel electrophoresis.

______ 1. The DNA sequence of one human being is on average 99.9% identical to another random human being.
______ 2. As of 2009, all living human beings have had their entire genome sequenced.
______ 3. The nucleotide bases present in a DNA sequence are A, T, G, C.
______ 4. Techniques that enabled scientists to clone genes were developed in the 1970s.
______ 5. A restriction enzyme is useful because it is a specific enzyme that recognizes and cuts specific DNA sequences.
______ 6. Ligation of 2 DNA fragments is an enzyme-catalyzed reaction.
______ 7. Plasmids are circular, double-stranded DNA molecules.
______ 8. The gels used in gel electrophoresis are made of gelatin-like materials such as agarose or polyacrylamide.
______ 9. PCR stands for polymerase chain reaction.
______ 10. Using recombinant DNA techniques, scientists can join DNA fragments from different species.
______ 11. The process of DNA transfection is not always 100% successful.
______ 12. A standard recombinant DNA procedure is to use antibiotics to select cells that have been successfully transfected with a recombinant plasmid.
______ 13. To determine if a DNA fragment has been successfully inserted into a plasmid, a scientist can analyze the DNA of the plasmid.
______ 14. The standard procedure of gel electrophoresis separates DNA based on size, with smaller fragments moving faster than larger fragments.
______ 15. A chemical called ethidium bromide is often used to visualize DNA that has been subjected to gel electrophoresis.

Added by Eric G.

Question

Please give Ace some feedback