Which of the following types of physical mutagens produces thymine dimer mutations?
A. gamma rays
B. ultraviolet light
C. X-rays
D. ionizing radiation
E. microwave
Answer: B
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Roots contain starch-heavy plastids known as
A. chloroplasts. B. plastoplasts. C. chromoplasts. D. statoliths. E. strongoliths.
Repair of heteroduplex regions formed during recombination can result in a 1:3 or 3:1 segregation of parental alleles, which indicates that ________ has occurred.
A) allelic exchange B) gene conversion C) crossing over D) recombination E) DNA replication
How is bacterial DNA packaged?
A) in a lattice along the capsule's inner wall B) in the nucleus as a chromosome C) at the center of the cell in a chromosome D) in dozens of small fragment at the center of the cell
What does MALDI stand for?
A) Matrix-Assisted Laser Desorption Ionization B) Maser-Assisted Ligand Desorption Ionization C) Maser-Assisted Laser Desorption Ionization D) Matrix-Assisted Ligand Desorption Ionization