Which of the following combinations could result in Rh incompatibility?
a. Rh-positive mother, Rh-negative father
b. Rh-positive mother, Rh-positive father
c. Rh-negative mother, Rh-positive father
d. Rh-negative mother, Rh-negative father
e. More than one of the above.
c
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Which of the following groups do not contain any species that are autotrophs?
A. Bacteria B. Protista C. Plants D. Archaea E. Fungi
Which of the following has a ventral nerve cord?
A) Shark B) Frog C) Coelacanth D) Earthworm E) Hummingbird
A pattern of inheritance in which the form of a single trait is collectively determined by alleles of several genes is called _______.
A. polygenic inheritance B. pleiotropic C. multiple allele system D. codominance E. epigenetic
The enzyme ribulose bisphosphate carboxylase (Rubisco) normally adds carbon dioxide to ribulose 1,5-bisphosphate
However, it will also catalyze a competing reaction in which O2 is added to ribulose 1,5-bisphosphate to form 3-phosphoglycerate and phosphoglycolate. Assume that phosphoglycolate is a compound that cannot be used in any further reactions. If O2 and CO2 have the same affinity for Rubisco, which of the following is the lowest ratio of CO2 to O2 at which a net synthesis of sugar can occur? (a) 1:3 (b) 1:2 (c) 3:1 (d) 2:1