Which is the order of airflow during inhalation?
a) nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli
b) nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli
c) nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli
d) nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli
Ans: b) nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli
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Which of the following is NOT found in a prokaryote?
A) DNA B) a cell wall C) a mitochondrion D) a plasma membrane
Base pairing
a. occurs between identical bases. b. requires hydrogen bonds. c. takes place between sugars and phosphates on the two strands in a helix. d. explains the X-ray results from Rosalind Franklin. e. occurs between A and C.
What is the difference between cytokinesis and karyokinesis? Which process needs to be more precise for accurate cell division?
What will be an ideal response?
Which of the following is a serious concern when performing PCR?
A. Restriction enzymes are difficult to obtain in adequate quantities. B. The high temperature needed may denature the DNA. C. Lab personnel may be exposed to radiation. D. PCR is a very time-consuming process. E. Contaminating DNA may be introduced and amplified.