The classic experiments performed by Creighton and McClintock in Maize
A. provided evidence for the physical exchange of genetic material between homologues.
B. provided the initial evidence for genetic recombination.
C. allowed for the establishment of the first genetic map.
D. provided evidence that genes located on the same chromosome do not assort independently.
Answer: A
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________ is an intramolecular post-translational process that allows for self-catalytic removal of specific amino acid sequences
Fill in the blank with correct word.
When first used in medicine in the 1940s, penicillin was uniformly effective in killing the bacterium Staphyloccocus aureus. Today, ____________________ has led to an increase in antibiotic-resistant alleles, and humans are increasingly at risk from untreatable Staphyloccocus aureus infections.
a) uncleanliness in hospitals b) natural selection in Staphyloccocus aureus populations c) natural selection in human populations d) the substitution of methicillin for penicillin e) molecular genetics
Which statement is not correct with regard to redox (oxidation-reduction) reactions?
A) A molecule is reduced if it loses electrons. B) A molecule is oxidized if it loses electrons. C) An electron donor is called a reducing agent. D) An electron acceptor is called an oxidizing agent. E) Oxidation and reduction always go together.
The disease caused by B19 virus, a (papillomavirus/parvovirus/polyomavirus), is known as fifth disease and produces a distinctive rash.
Fill in the blank(s) with the appropriate word(s).