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Questions and Answers
Johannes Friedrich Miescher was the 1st person to describe and extract ______
Johannes Friedrich Miescher was the 1st person to describe and extract ______
DNA
Oswald Avery and Maclyn McCarty concluded that ______ is the transforming principle.
Oswald Avery and Maclyn McCarty concluded that ______ is the transforming principle.
DNA
Fred Griffith transferred hereditary material from dead cells to live cells; he used two strains of Streptococcus pneumoniae in his experiment. Mice A – injected with live R cells, lived. Mice B – injected with live S cells, died. Mice C – injected with killed S cells, died. Mice D – injected with killed S cells and live R cells died, live S cells are found in the blood. Harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor. The experiment demonstrated ______ transformation.
Fred Griffith transferred hereditary material from dead cells to live cells; he used two strains of Streptococcus pneumoniae in his experiment. Mice A – injected with live R cells, lived. Mice B – injected with live S cells, died. Mice C – injected with killed S cells, died. Mice D – injected with killed S cells and live R cells died, live S cells are found in the blood. Harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor. The experiment demonstrated ______ transformation.
bacterial
Alfred Hershey and Martha Chase used radioactive phosphorus (32P) and radioactive sulfur (35S); bacteriophages transfer their DNA, not their coat proteins, into their hosts. They concluded that ______, not protein, is the material that stores hereditary information.
Alfred Hershey and Martha Chase used radioactive phosphorus (32P) and radioactive sulfur (35S); bacteriophages transfer their DNA, not their coat proteins, into their hosts. They concluded that ______, not protein, is the material that stores hereditary information.
Rosalind Franklin used x-ray crystallography to determine many aspects of DNA’s ______.
Rosalind Franklin used x-ray crystallography to determine many aspects of DNA’s ______.
James Watson and Francis Crick constructed the DNA double helix model. DNA stands for deoxyribonucleic acid; consists of 5-C sugar (deoxyribose), 3 phosphate groups, 1 of 4 nitrogen-containing bases (purines: adenine, guanine; pyrimidines: thymine, cytosine). RNA contains adenine, guanine, thymine, ______.
James Watson and Francis Crick constructed the DNA double helix model. DNA stands for deoxyribonucleic acid; consists of 5-C sugar (deoxyribose), 3 phosphate groups, 1 of 4 nitrogen-containing bases (purines: adenine, guanine; pyrimidines: thymine, cytosine). RNA contains adenine, guanine, thymine, ______.
DNA consists of a 5-C sugar called ______.
DNA consists of a 5-C sugar called ______.
The four nitrogen-containing bases in DNA are adenine, guanine, thymine, and ______.
The four nitrogen-containing bases in DNA are adenine, guanine, thymine, and ______.
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