True or False: Only humans have a biological clock

A. true
B. false


B

Biology & Microbiology

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Protein disulfide isomerase:

A. reduces disulfide bonds. B. facilitates posttranslational modification of a protein. C. catalyzes the breakage and formation of disulfide bonds. D. reduces disulfide bonds and facilitates posttranslational modification of a protein. E. reduces disulfide bonds, facilitates posttranslational modification of a protein, and catalyzes the breakage and formation of disulfide bonds.

Biology & Microbiology

If one of the parents in a dihybrid cross possesses the PpTt alleles, which allele combination is not possible in their gametes?

a. PT b. Pp c. Pt d. pT e. pt

Biology & Microbiology

Members of the phylum ____ exhibit radial symmetry, with their body parts arranged regularly around

a central axis.

a. Porifera b. Mollusca c. Cnidaria d. Platyhelminthes e. Chordata

Biology & Microbiology

The reactant (reactants) of photosynthesis is (are)

A. oxygen. B. water and carbon dioxide C. chlorophyll. D. glucose. E. glucose and oxygen.

Biology & Microbiology