What is a homeobox?
A. a cluster of homeotic genes
B. a sequence within a homeotic gene that encodes the DNA-binding portion of a transcription factor
C. the portion of the promoter to which a homeoprotein binds to activate transcription of genes important for development
D. an enhancer region needed for expression of a homeotic gene
E. none of these are correct
B. a sequence within a homeotic gene that encodes the DNA-binding portion of a transcription factor
You might also like to view...
Glycolysis is a series of chemical reactions (endergonic and exergonic) by which the cell can obtain ATP. NAD+ plays a crucial role in the reactions of glycolysis by:
A. accepting electrons from glucose so that glucose gets partially oxidized to pyruvate. B. donating electrons to pyruvate when glucose gets partially oxidized. C. converting endergonic reactions to exergonic reactions so that there is an output of energy to make ATP. D. donating electrons to ADP to make ATP.
Which of the following is associated with retrograde movement?
A) dynein B) actin C) tubulin D) myosin E) kinesin
Which statement is true?
a. Translation cannot proceed until eIF-2 is phosphorylated. b. eIF4F bonds to the 40S ribosome after GTP is hydrolyzed. c. Phosphorylation of a protein can alter RNA stability. d. GTP bonds to the 5’ cap of the mRNA during translation.
Which of the following is NOT characteristic of a tropical rain forest?
A. warm climate B. nutrient-rich soil C. a year-round growing season for plants D. a tremendous diversity of animal life E. a location near the equator