What is found within the intercalated disks of cardiac muscle?
A. bone
B. sarcoplasmic reticulum
C. gap junctions
D. dense connective tissue
E. myoglobin
Answer: C
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Esherichia coli and Clostridium acetylbutylicum are reported to be derived from a common ancestor. They both have similar but not identical gene sequences. Which of the following could best explain this difference in genetic coding?
A. They have a common ancestor, their DNA has been inherited from the common ancestor, therefore it will be similar. B. The two species never diverged but they were discovered by two different scientists and therefore given different names. C. These orthologs show identical gene segments, but the entire sequence has differences, therefore they are related through ancestoral genes. D. Gene duplication created paralogs. E. After the two species diverged, the genes accumulated random mutations that resulted in similar but not identical gene sequences.
a. isoleucine (Ile)
a. DNA degradation level b. transcriptional level c. post-transcriptional level d. translational level
Which of the following structural brain components are most directly involved in the control of movement?
a. Cerebellum b. Cerebrum c. Brainstem d. Diencephalon e. all of the above
Stratified epithelium is composed of multiple layers of flattened cells that can often be found in the lining of blood vessels.
Answer the following statement true (T) or false (F)