Which lineage do legless caecilians belong to?

a. Gymnophiona
b. Squamata
c. Anura
d. Aves


Ans: a. Gymnophiona

Biology & Microbiology

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In glycolysis, glucose receives two phosphate groups from ____, thus forming fructose-1, 6-bisphosphate

a. ADP b. ATP c. G3P d. a bisphosphate group

e. fructose-1, 6-bisphosphate

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What is the sequence of the temperatures of a typical PCR reaction?

a. 94 °C, 72 °C, 60 °C b. 94 °C, 60 °C, 72 °C c. 72 °C, 60 °C, 94 °C d. 72 °C, 94 °C, 60 °C e. 60 °C, 72 °C, 94 °C

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An excess of T3 and T4 in the blood is hyperthyroidism, which in its most common form is called

A) goiter. B) sterility. C) Graves' disease. D) botulism.

Biology & Microbiology

Which of the following statements about bacteriocins is FALSE?

A) The genes coding for them are on plasmids. B) They cause food-poisoning symptoms. C) Nisin is a bacteriocin used as a food preservative. D) They can be used to identify certain bacteria. E) Bacteriocins kill bacteria.

Biology & Microbiology