Who discovered that DNA was the genetic material or transforming factor that could convert nonvirulent R-type Streptococcus pneumoniae bacterium to the virulent S-type?
A. Weismann and Nageli.
B. Griffith.
C. Avery, MacLeod, and McCarty.
D. Hershey and Chase.
E. Watson, Crick, Wilkins, and Franklin.
C. Avery, MacLeod, and McCarty.
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Which of the following provides the basis for Mendel’s laws of segregation and independent assortment?
a. Meiosis I b. Meiosis II c. Interkinesis d. Cytokinesis
The ________ was developed in the late 1920s by Theodore Svedberg. He originally used it to determine the sedimentation rate of proteins
Fill in the blank with correct word.
Longer vocal cords generate higher-pitched tones than longer ones
Indicate whether the statement is true or false
Which of the following explains what happens to the circulatory system during hyperventilation?
a) oxygen levels increase, causing an increase in blood pH b) Oxygen levels decrease, causing a decrease in blood pH c) Carbon dioxide levels decrease, causing an increase in blood pH d) Carbon dioxide levels increase, causing a decrease in blood pH