A tabacco plant can be made to express a gene from fireflies, resulting in the emission of light. Which of the following is the basis for this phenomenon?
A. Chloroplasts can be made to produce light if firefly proteins are injected into plant cells
B. Fireflies and tobacco plants share a recent common ancestor
C. Fireflies and tabacco plants are infected by the same kinds of bacteria
D. Transcription and translation are fundamentally similar in both fireflies and tobacco plants
E. Most enzymes in fireflies have the same amino acid sequence as the enzymes in tabacco plants
Ans: D. Transcription and translation are fundamentally similar in both fireflies and tobacco plants
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The questons below refer to the following phylogenetic trees
I. II. III. IV. 12) Which tree depicts the microsporidians as a sister group of the ascomycetes? A) I B) II C) III D) IV
The energy currency of a cell is _______
A. ATP B. glucose C. glycogen D. triglycerides E. proteins
Which of the following functions best explains the reason for the asymmetrically oriented structure of
the proteins in the cell membrane? a. These proteins are manufactured by free ribosomes. b. Each type of protein has its own function. c. These proteins pass through the ER membrane into the ER lumen. d. Enzymes are needed to modify the carbohydrate chains on these proteins. e. These proteins are initially formed by ribosomes on the rough ER.
Which of the following would most likely interact by forming an ionic bond?
A.) the enzyme hexokinase and its substrate glucose B.) ATP and magnesium cations C.) two strands of DNA D.) fatty acid chain and inorganic phosphate E.) urea and water