Which cells in the immune system produce memory cells?
A) lymphocytes B) eosinophils C) mast cells D) dendritic cells
Answer: A
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Which is incorrect about inducible operons?
A. They have genes turned off by a buildup of end product. B. They are turned on by the substrate of the enzyme. C. They include the lac operon. D. They are often for use in catabolic pathways. E. They are normally turned off.
Centromere
What will be an ideal response?
It has been proposed that large brains evolved in Homo species because
A) large brains allowed better visual acuity, which was favored by natural selection. B) large-brained individuals were better able to outwit and escape predators. C) natural selection favored large-brained individuals because they were better in social interactions. D) genetic drift increased the frequency of large-brained alleles. E) evolution of a large brain was a consequence of evolution of overall larger body size.
Two monosaccharides bonded together through a dehydrations reaction is called a ____________ linkage.
Fill in the blank(s) with the appropriate word(s).