To verify a gene was cloned into a vector successfully, sequencing the vector as well as ________ are commonly performed
A) agarose gel electrophoresis
B) fluorescence in situ hybridization
C) protein purification
D) northern blots
Answer: A
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Under the best case scenario, the majority of water should be lost via transpiration.
a. True b. False
In the construction of a phylogenetic tree, a ______ considers the overall similarities among a group of species without trying to understand their evolutionary history, whereas a ______ considers the possible pathways of evolution to find the best possible tree.
A. cladistic approach; phenetic approach B. phenetic approach; cladistic approach C. shared derived character; ancestral character D. ancestral character; shared derived character
The primary role of the two sperm produced in the germ tube of the pollen is to
A. release proteins for germination B. aid the plant's seed production C. ensure that there will be fertilization of the egg and the two central cells D. ensure production of an embryo E. allow the endosperm to become a seed
A particular haploid strain of yeast contains a temperature-sensitive mutation in its cdc2 gene resulting in no functional Cdc2 protein at the nonpermissive temperature
At the nonpermissive temperature, each of the following events would fail to occur at the appropriate cell cycle stage except A) replication of DNA. B) fragmentation of the nuclear envelope. C) condensation of chromosomes. D) appearance of the mitotic spindle. E) prevention of fusion of chromosome ends.