Cells removed from callus that can grow into plantlets illustrates that differentiated cells can be
returned to a totipotent state.
Indicate whether the statement is true or false.
T
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What results would you expect if mitochondria are inherited biparentally?
A) Some, but not all, yeast colonies found on the plate without chloramphenicol will also grow on the plate with chloramphenicol. B) All of the yeast colonies on the plate without chloramphenicol will also grow on the plate with chloramphenicol. C) Many yeast colonies will grow on the plate without chloramphenicol and no colonies will grow on the plate with chloramphenicol. D) No colonies will grow on either plate.
In the polymerase chain reaction, what is the purpose of the initial high temperature? What is the purpose of cooling in the second step?
What will be an ideal response?
The specific causative agent of a disease is called ______ and the way the disease develops is ____
a. Portal of entry; portal of exit b. Medical infection; pathogenic microbiology c. Invasiveness;progression d. Etiology;pathogenesis
During protein synthesis in eukaryotes, which molecule passes from the nucleus to the cytoplasm and specifies the sequence of amino acids in the new polypeptide?
A. mRNA B. tRNA C. rRNA D. RNA polymerase E. DNA