ATP is produced mostly by the electron transport located in ____ of a human breast cancer cell
a. plasma membrane
b. peptidoglycan
c. inner mitochondrial membrane
d. mitochondrial matrix
Answer: c. inner mitochondrial membrane
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The streptomycetes form spores on their substrate mycelia.
Answer the following statement true (T) or false (F)
Most of the energy within an ecosystem is lost ____
a. when organisms disperse b. when organisms die c. as a result of metabolism d. by organisms at the top of the food web e. by organisms at the bottom of the food web
The Dunkers are a religious group that moved from Germany to Pennsylvania in the mid-1700s. They do not marry with members outside their own immediate community
Today, the Dunkers are genetically unique and differ in gene frequencies, at many loci, from all other populations including those in their original homeland. Which of the following likely explains the genetic uniqueness of this population? A) population bottleneck and Hardy-Weinberg equilibrium B) heterozygote advantage and stabilizing selection C) mutation and natural selection D) founder effect and genetic drift
The standard or housekeeping sigma factor used most often by E. coli RNA polymerase under normal growth conditions is called sigma ________.
A. 32 B. E C. 70 D. S