Which of the following statements about the Hershey-Chase experiment is false?
A) The virus-infected bacteria showed radioactive phosphorus.
B) Protein was labeled with radioactive sulfur.
C) The virus-infected bacteria contained radioactive sulfur.
D) DNA was labeled with radioactive phosphorus.
Ans: C) The virus-infected bacteria contained radioactive sulfur.
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What avenues of research would probably not help determine if asexual organisms form species?
a. determine if a cluster of bacteria constitutes a species b. explore various niches in which different populations reside c. look into previously undiscovered types of bacteria d. genomic research e. hybridizing polyploid plants
Which of the following are never sink regions for the
pressure-flow translocation of organic compounds? a. growing leaves b. seeds c. fruits d. roots e. mature photosynthesizing leaves
What are soil particles that are decomposing organic matter called?
a. sand b. humus c. silt d. clay
Leiomyomas are a type of smooth muscle cancer that occurs in the uterine wall.
Answer the following statement true (T) or false (F)