Which of the tools below is used to cut the gene from its normal location?
A. restriction enzyme
B. plasmid
C. bacteriophage
D. vector
Ans: A. restriction enzyme
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Structures that have similar structure and function but different evolutionary origins are called:
A. inherited. B. evolutionary modifications. C. analogous. D. homologous. E. uniform.
Consider the development of a fossil record for a watershed. A current inventory of all species already has been taken. Which microorganisms might you first consider looking for with the objective of developing a microbial fossil record? Why?
Also, what might depth profiling accomplish? What will be an ideal response?
Which of the following statements about heartwood is false?
a. It functions in conduction. b. It is a storage site for waste products. c. It is resistant to decay. d. It provides structural support. e. It is located in the center of a tree.
A zygote initially divides into smaller cells, each called a(n)
A. blastomere. B. gastrula. C. neurula. D. embryonic cell. E. cleavage cell.