Anoxygenic photosynthetic bacteria
A. obtain electrons from water.
B.
do not produce oxygen as a by-product.
C. may obtain electrons from H2S.
D. are obligate aerobes.
E.
do not produce oxygen as a by-product AND may obtain electrons from H2S.
E
You might also like to view...
What is occurring in step 6?
a. fission b. fusion c. fertilization d. the first meiotic division e. the second meiotic division
Choose the statement that best describes the role of restriction enzymes in DNA profiling.
Restriction enzymes are used to replicate specific sequences of DNA. Restriction enzymes are used to cut DNA at specific locations. Restriction enzymes are used to join different segments of DNA. Restriction enzymes are used to sequence long stretches of DNA. Restriction enzymes are used to purify DNA.
In eukaryotic cells, the function of the nucleolus is which of the following?
A) It is where all the nuclear DNA is located. B) It is where cellular respiration takes place. C) It is where ribosomal RNA is synthesized and ribosome assembly begins. D) It is where transcription and translation of all gene products take place.
Most patients with toxoplasmosis that are not immunocompromised experience
A. fever, swollen lymph nodes, and joint pain. B. chills, fever, and sweating. C. sore throat, low grade fever, and swollen lymph nodes. D. urinary frequency and pain, and vaginal discharge. E. bloody, mucus-filled stools, fever, diarrhea, and weight loss.