Eyes are
a. chemoreceptors.
b. mechanoreceptors.
c. photoreceptors.
d. nociceptors.
e. none of these.
C
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Which of the following is not a common posttranscriptional modification of tRNA molecules?
A. removal of nucleotides from the 5' and 3' ends B. methylation and deamination of specific bases C. addition of a 5' cap D. attachment of the C-5 of uracil to the ribose at specific sequences
The spatial arrangement of different regions in the body is called a _______
A. pattern B. morphogen C. induction D. segment
Four of the five answers listed below concern cells with two chromosome sets. Select the exception
a. zygote b. somatic cells c. gamete d. diploid e. 46 chromosomes
What is the causative agent of Farmer's Lung and Bagossis?
A. Actinomyces israelii B. Nocardia C. Mycobacterium tuberculosis D. Bacillus anthracis E. Clostridium perfringens