Which of the following is NOT a developmental process that explains the relationship beteween the notochord, somites, and limb muscles?
A. induction
B. proliferation
C. differential expansion
D cell movement
E. differentiation
F. all of these describe the relationship between somites and limb development
Answer: C. differential expansion
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(a) resolving power. (b) magnification. (c) contrast. (d) all of the above.
Which of the following is NOT a source for stem cells?
a) sperm and eggs b) early embryos c) certain adult tissues d) umbilical cord blood
Which chromosomes do not determine the set of an individual?
What will be an ideal response?
The plant pathogen ________ is a member of the alphaproteobacteria that alters plant cells by introducing DNA into them.
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