Which aquatic habitat contains a pelagic zone?
A) estuary
B) lake
C) salt marsh
D) open ocean
Answer: D
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A newborn is identified as having sickle-cell anemia. While both parents are healthy, a screening of both parents will most likely reveal:
A. both mother and father are carriers of a mutant ? chain gene. B. only one parent has a mutant ? chain gene since mutation is dominant. C. both mother and father are carriers of a mutant ? chain gene. D. only one parent has a mutant ? chain gene since mutation is dominant. E. both parents carry a mutant hemoglobin gene and are highly susceptible to malaria.
In binary fission, one would expect the involvement of which of the following cytoskeletal proteins?
A) FtsZ B) MreB C) plaktin D) crescentin E) tubulin
In autopolyploidy, a diploid individual may produce _____ offspring which are reproductively isolated from the parents' species
1.haploid 2.tetraploid 3.hybrid 4.allopatric 5.parapatric
During translation, which triplets signal chain termination?
What will be an ideal response?