The coefficient of inbreeding quantifies the probability that two alleles in a homozygous individual are ________, having descended from the same copy of the allele carried by a common ancestor of the inbred individual
Fill in the blank(s) with correct word
identical by descent (IBD)
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What accounts for the fluidity that defines the fluid mosaic model of a typical plasma membrane?
a. The proteins, being large, cause the membrane to jiggle around. b. The phospholipids collectively form a jelly-like substance similar to the cytoplasm. c. The phospholipids are not bonded to each other and thus are freer to move around. d. Water molecules infiltrate the bilayer causing it to become more watery and thus more fluid. e. The phospholipids in a typical plasma membrane form covalent bonds which are elastic and allow the membrane to stretch.
Why do researchers often include DNase in their antibiotic preparations to eliminate biofilms?
A. The antibiotics cannot readily penetrate the extracellular debris, which often includes DNA from lysed cells. B. Targeting the bacterial chromosome is the most effective way to kill biofilm bacteria. C. If the microbe's genome can be destroyed, the cell will die. D. The antibiotics target the cell wall and the DNase targets the genome, effectively destroying the biofilm.
In order to reproduce, to what type of wetland must certain species of salamanders migrate so their aquatic eggs can develop free of predatory fish that are unable to survive the annual drying up of this wetland?
A) vernal pond B) intertidal zone C) marsh D) swamp
Proteins are polymers of how many different amino acids?
a. 16 b. 20 c. 24 d. 64