ELISA tests use a fluorescent dye as a label to trace antigen-antibody reactions.
Answer the following statement true (T) or false (F)
False
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In mammals, males are ______ for genes on their sex chromosomes, and females can be ______ or heterozygous for genes on their sex chromosomes. rev
A. heterozygous, homozygous B. hemizygous, homozygous C. homozygous, hemizygous D. heterozygous, hemizygous
The use of recombinant DNA technology to treat genetic diseases ("gene therapy") has been held back by difficulty
A) delivering cloned genes into target cells and getting the genes to function properly. B) in obtaining the appropriate sequence information from individual people. C) cloning human genes. D) in identifying human genes that cause disease. E) cloning and identifying human genes that cause disease.
Which individuals have the greatest fitness in an area where malaria is common?
A) individuals of any genotype who become infected with malaria before the age of five B) individuals homozygous for the sickle cell anemia allele C) individuals homozygous for the normal globin allele D) individuals heterozygous for the normal and sickle cell anemia alleles
Physical and chemical antimicrobial agents can target all but which of the following?
A) Protein function B) Cell membrane integrity C) DNA replication D) Capsule formation E) Cell wall synthesis