Choose the letter that best describes the function of this receptor type: Meissner's corpuscle
A. tonic receptors located near the surface of the skin
B. pressure sensitive receptors deep in the subcutaneous layer
C. receptors on the face and fingertips sensitive to light touch
C. receptors on the face and fingertips sensitive to light touch
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A botanist is comparing the metabolic pathways for photosynthesis in cyanobacteria and in redwood trees. What do you expect she will find?
A. These two pathways will demonstrate dramatic differences. B. These pathways will utilize two very chemically different types of chlorophyll. C. These two pathways will actually be quite similar, though subtle differences may exist. D. It is impossible to compare metabolic pathways used in bacteria and eukaryotes.
If the recombination frequency between gene A and B is 10 out of 100 offspring, gene A and C is 30 out of 100 offspring, and gene B and C is 40 out of 100 offspring, what is the location of these genes in relation to each other on a chromosome?
A. CAB B. BAC C. ABC D. CBA E. either CAB or BAC
A change in a gene's DNA sequence is a(n)
A) genotype. B) nucleotide. C) mutation. D) genome.
What are genes that code for negative cell cycle regulatory proteins called?
a. oncogenes b. tumor suppressor genes c. proto-oncogenes d. mutated genes