15 Questions
Thomas Hunt Morgan proved inheritance is carried on ______ through:
chromosomes
Frederick Miescher discovered the chemical makeup of DNA by isolating the ______ in 1869:
nuclein
Walter Flemming stained nuclei with ______ dye and found a basophilic substance which he named “chromatin”:
aniline
Eduoard Zacharias found that removing ______ from chromosomes caused it to stop taking up stains:
DNA
The substance discovered by Miescher, which is a mixture of proteins and other molecules, is now called ______:
chromatin
Frederick Griffith revealed the ______________ factor in 1928.
transforming
The outer coat of bacteria prevents the ______________ system from working against the bacteria.
immune
Avery, McCarthy, and Macleod concluded that ______________ is the molecule of inheritance.
DNA
Hershey and Chase worked with ______________ Bacteriophage to determine the molecule of inheritance.
T2
Radioactive ______________ was used to label the viruses in Hershey and Chase's experiment.
sulfur
Erwin Chargaff noticed that the bases Adenine and Thymine, and Cytosine and Guanine all had the same ______________.
proportion
Adenosine and Guanine are classified as ______________.
purines
Rosalind Franklin did X-ray crystallography on a ______________ DNA molecule.
crystalized
Watson and Crick made a model of the DNA ______________.
structure
Griffith injected heat-killed smooth cells and living rough cells into mice, and they all ______________.
died
Explore the historic discoveries of Thomas Hunt Morgan and Frederick Miescher, pioneers in the field of molecular biology. Learn about their findings on chromosomes, genes, and the chemical makeup of DNA. Test your knowledge on the milestones in understanding the molecular basis of inheritance.
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