Which two cellular organelles in eukaryotes have both electron transport systems and chemiosmotic mechanisms?
a. Ribosomes and endoplasmic reticulum
b. Chloroplasts and endoplasmic reticulum
c. Chloroplasts and mitochondria
d. Mitochondria and nuclei
e. Nuclei and Golgi apparatus
Ans: c. Chloroplasts and mitochondria
Biology & Microbiology
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A. Kidney B. Renal pelvis C. Urethra D. Urinary bladder E. Ureters
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DNA methylation is the only known natural modification of DNA. It affects
A. cytosine bases. B. thymine bases. C. guanine bases. D. adenine bases.
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Which of the following organisms causes heartworms?
a) filarial worms b) Ascaris c) tapeworms d) flukes e) pinworms
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