A __________ is the combination of base, a deoxyribose molecule, and a phosphate group.
C. DNA strand
The molecular structure of deoxyribonucleic acid dictates: A. the manner in which chromosomes are organized.
B. the way DNA encodes genetic information.—B IS THE ANSWER
C. how molecules carry genetic information.
D. how chemical reactions burn food
In a DNA model, the alternating __________ and phosphate groups are represented on the two twisted ribbons.
Before a cell __________, the double helix partially and rapidly unwinds.
C. replicates C IS THE ANSWER
The overall shape or conformation of the protein molecule is termed its __________ structure.
A. tertiary A IS THE ANSWER
All enzymes are:
B. proteins. B IS THE ANSWER
Bacteria contain rings of __________ called plasmids.
DNA __________ utilize(s) unique fragments of DNA to identify a specific individual.
__________ in cells, but not within cell nuclei, are vital to energy production.
A. Fatty acids
Before __________ there was no hepatitis B vaccine.
A. transgenic modifications
B. recombinant DNA
D. DNA probes
The biochemists who set out to decipher the genetic code concentrated on translating base language into __________ language.
C. amino acid
D. DNA coded
Chromosomes consist of __________ compact structures of intertwined molecules of DNA in a human cell nucleus.
What is the totality of human hereditary information in molecular form called?
B. Human genome
What is a nucleotide?
A. The combination of nitrogenous base, sugar, and phosphate group
B. Phosphate units
D. The combination of deoxyribose and a phosphate group
Francis Crick established that genetic code was written in groupings of three DNA bases known as:
B. amino acid residues.
C. complementary bases
Organic polymers of amino acids linked together by peptide bonds are called:
C. genetic codes.
D. DNA bases.
Electrophoresis and __________ have made genetic fingerprinting a highly accurate and viable method for fighting crime.
A. x-ray diffraction
B. nuclear transfer
C. polymerase chain reaction
The molecule with its reaction catalyzed by an enzyme is the:
B. active site.
A. proteins that are produced by cells under viral attack.
B. genetically engineered proteins.
C. viruses that attack.
D. proteins that produce carbohydrates when they encounter a virus.
Diabetes is more effectively treated today through the creation of insulin by:
A. sickle-cell anemia.
B. recombinant DNA.
C. polymerase chain reaction.