Diseases caused by prions that are seen in domesticated animals and humans have which of the following manifestations in common?
A. All diseases affect the musculoskeletal system
B. All diseases cause gastrointestinal upset
C. All diseases cause neurodegeneration
D. All diseases cause skin lesions
E. All diseases affect the cardiovascular system
Answer: C
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DNA repair in eukaryotes that facilitates replication in regions of thymine dimers is mediated by a unique DNA polymerase
A) ?. B) ?. C) ?. D) ?. E) ?.
The default state for the lac operon is off, while the default state for the trp operon is on. Explain this
contradiction and the mechanism of control via the repressor proteins.
What will be an ideal response?The diploid number of chromosomes found in a eukaryotic cell
a. indicates the phylogenetic position of the organism. b. is constant during the life cycle. c. is haploid among asexually reproducers and diploid if they reproduce sexually. d. is cut in half by meiosis and is restored by fertilization. e. is dependent on the age of the tissue.
Malignant neoplasms arising from connective tissue cells are referred to as.
A) carcinomas. B) sarcomas. C) melanomas. D) fibromas.