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.

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

Longer vocal cords generate higher-pitched tones than longer ones

Indicate whether the statement is true or false

Biology & Microbiology

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

Biology & Microbiology