Scientists are trying to find ways to induce tumor angiogenesis
a. true
b. false
Ans: b. false
You might also like to view...
Scientists have found that the lifetimes of mRNAs coding for pair-rule regulatory elements in Drosophila embryos may last only a few minutes. What does this suggest about the overall developmental plan of an animal body?
A) The role of mRNAs is less important than the position of genes in chromosomes. B) Homeotic genes have greater impact in forming an embryo than mRNA from pair-rule genes. C) Building an animal body requires a sequence of precisely timed steps. D) Timing of pair-rule sequence determination is not as important as spatial signaling.
What specifically happens when the myosin
bound ATP is hydrolyzed to ADP and Pi?
a. the myosin converts to a high energy state b. the myosin converts to a low energy state c. the energy released from ATP causes the release of calcium from endoplasmic reticula d. myosin and actin form a cross-bridge e. the sarcomere contracts
The pairing of homologous chromosomes
A. only occurs in mitosis. B. is called synapsis. C. is called crossing over. D. occurs during telophase I. E. occurs during anaphase II.
Phospholipids are important components of the ______.
a) waxy coverings on leaves b) ring structures of steroids c) double bonds in hydrocarbon chains d) plasma membranes of cells