A given organism has 46 chromosomes in its karyotype. Therefore, we can conclude that it must _____
A) be human
B) be an animal
C) reproduce sexually
D) have gametes with 23 chromosomes
D
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As the result of exposure to a mutagen, cytosine is substituted for thymine in one strand of DNA. Upon subsequent DNA replication, one of the daughter cells will have a GC pair in this position instead of an AT pair. This is called a(n) ________ mutation.
A. insertion B. transition C. frameshift D. transversion
Immune complexes
A. consist of antigen-antibody bound together. B. are usually cleared rapidly from the body. C. bind to Fc receptors on cells. D. are involved in type III hypersensitivity reactions. E. All of the choices are correct.
Clays do not facilitate the formation of phospholipid bilayers
What will be an ideal response?
Energy storage is the primary function of:
A) phospholipids. B) triglycerides. C) waxes. D) cholesterol. E) estrogen