A cladogram grouped birds with reptiles because the bird characteristic of ________ was not emphasized.
Fill in the blank(s) with the appropriate word(s).
feathers
A cladogram grouped birds with reptiles because the bird characteristic of feathers was not emphasized.
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Supercoiling has been observed in:
A. chromosomal DNA. B plasmid DNA. C. genomes of double-stranded DNA viruses. D. most circumstances where double-stranded DNA is present in the cell. E. most circumstances of double-stranded cellular DNA, but not double-stranded viral DNA.
The technique of transferring proteins from SDS-PAGE gels onto a membrane and using labeled antibodies to identify particular proteins is known as a(n) ________.
Fill in the blank(s) with the appropriate word(s).
Veins from the ____ join together and form the hepatic portal vein
a. large intestine b. liver c. pancreas d. small intestine e. stomach
The first repair of mistakes during DNA replication is made by:
A: the mismatch repair system. B: excision repair. C: DNA polymerase. D: SOS repair. E: postreplication repair.