Which of the following regions of a structural gene contains the information that specifies an amino acid sequence?
A. promoter region
B. transcribed region
C. terminator
D. regulatory sequence
E. enhancer region
B. transcribed region
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Motor proteins provide for molecular motion in cells by interacting with what types of cellular structures?
A) mitochondria and chloroplasts B) membrane proteins of the inner nuclear envelope C) free ribosomes and ribosomes attached to the ER D) components of the cytoskeleton E) cellulose fibers in the cell wall
Which of the following genotypes would result in a B blood type?
a. all of the choices b. BO and BB c. OO and BO d. AB and BB
For a typical flowering plant, the first cell of the triploid (3n) endosperm is formed from
a. one sperm fused with two antipodal cells. b. two sperm fused with the egg. c. one sperm fused with the central cell. d. one sperm fused with the egg. e. two sperm fused with a synergid.
Small effector molecules directly bind the DNA they regulate.
Answer the following statement true (T) or false (F)