When a group of cells works together for a common function, such as in a tissue, they must have a network to communicate with each other. What is that network called?
Ans: extracellular matrix
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Which of the following statements explains why restriction enzymes are not useful for genome-wide studies of genetic variation?
A. There is simply too much DNA that has to be cut in order to get any information. B. The differences in restriction sites are evened out when looking at the entire genome. C. Using restriction enzymes will only tell us differences in sequence variation in restriction sites. D. Restriction enzymes only recognize sequences found in genes. E. None of the answer options is correct.
In a tetraploid species, a euploid individual would have ___sets of chromosomes.
A. 2 B. 4 C. 6 D. 8 E. 2n+2
Knockin mice can be created using the Cre/loxP system. In this procedure, the loxP sites are used to
A) delete the neomycin-resistance marker gene. B) recombine the mutation into the genome. C) express Cre protein. D) flip the orientation of genomic DNA after the mutation is inserted.