Which of these is a type of posttranscriptional regulation of gene expression?
A) inactivation of tRNA
B) alteration of DNA nucleotide sequences
C) breakdown of proteins
D) binding of transcription factors to enhancers
C
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The net result of glycolysis is
a. 2 NADH, 2 ATP, and 2 pyruvates b. 8 NADH, 2 ATP, and 6 carbon dioxides c. 36 ATP d. 2 NADH, 4 ATP, and 2 pyruvates e. 2 NADH, 2 ATP, and 2 acetyl-CoAs
The area labeled “A” is
a. a nucleus. b. chromatin. c. endoplasmic reticulum. d. a vacuole. e. a nucleolus.
Particles of ________ control the water-holding capacity of soil and ion exchange
Fill in the blank(s) with correct word
The evolution of aquatic vertebrates that could live on land likely involved an intermediate species that
A) could fly. B) had a single lung. C) had a tracheal system of branching internal tubes. D) had both gills and lungs.