The designer of the first transmission electron microscope, ________, was awarded the 1986 Nobel Prize in physics.
Fill in the blank(s) with the appropriate word(s).
Ernst Ruska
You might also like to view...
A key trait that distinguishes gnathostomes from other chordate lineages is the presence of
a. bony scales. b. claspers. c. jaws. d. the operculum. e. keratin.
What structures move proteins from the ER to the Golgi apparatus?
A) transport proteins B) central vacuole C) transport vesicles D) nucleolus
In the determining function for Sales given by Salesi = ?0 + ?1Pricei + Ui, what is the role of Ui?
A. Factors correlated with price that do not impact sales B. Factors other than price that impact sales C. Factors uncorrelated with price that do not impact sales D. Pure measurement error in price
Evolutionary biologists have always used a broad range of modern organisms to infer the characteristics that ancestral organisms may have possessed
Genomic sequences are now available for an increasing number of species, and scientists studying evolutionary processes can take advantage of this enormous amount of data to bring evolution into the arena of molecular studies. By aligning the sequences of homologous genes and looking for regions of similarity and where changes have occurred, it is possible to infer the sequence of the ancestral gene. A. What term is used to describe the changes in gene sequences that have occurred? How can we use what we know about this process to construct a timeline showing when various sequence changes occurred and when they led to the modern sequences that we know today? B. It is possible to express an ancestral gene sequence in modern organisms and subsequently compare the function of its product with that of the modern protein. Why might this approach give misleading conclusions?