Proto-cells are considered to have
a. been simple membrane-bound sacs.
b. been able to capture energy.
c. been able to engage in metabolism.
d. been able to reproduce.
e. all of these.
E
You might also like to view...
Leishmania donovani causes
A. cutaneous leishmaniasis. B. visceral leishmaniasis. C. mucocutaneous leishmaniasis. D. All of the choices are correct.
Which of the following is considered a reverse mutation that will restore the wild type phenotype?
A. Mutation to a different base sequence, but one that restores the amino acid sequence in the protein to the wild type sequence B. True reversion back to the wild type base sequence C. A mutation that restores the function of a protein, even though it does not restore the base sequence or the amino acid sequence to the wild type D. All of the choices are correct.
To inherit an autosomal dominant disorder a person could receive the disease causing allele from
a) the father only, not the mother. b) the mother only, not the father. c) the mother or the father. d) the parent who does not exhibit the disease. e) All answers are correct.
The reaction cycle that uses acetyl CoA to generate electron carrier molecules needed in the electron-transport chain is important for powering the cell. Which of the names below is not one of those commonly used to describe this reaction cycle?
(a) tricarboxylic acid cycle (b) Krebs cycle (c) oxaloacetic acid cycle (d) citric acid cycle