According to bacterial abundance studies done so far on soils, the ________ represent the most abundant phylum
A) Proteobacteria
B) Acidobacteria
C) Actinobacteria
D) Firmicutes
Answer: A
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Embryonic stem cells are harvested from the inner cell mass of an early stage embryo called a(n)
____________________. Fill in the blank(s) with the appropriate word(s).
The trait for medium-sized leaves in iris is determined by the genetic condition PP'. Plants with large leaves are PP, whereas plants with small leaves are P'P'. The trait for red flowers is controlled by the genes RR, pink by RR', and white by R'R'
A cross is made between two plants each with medium-sized leaves and pink flowers. If they produce 320 seedlings, what would be the expected phenotypes, and in what numbers would they be expected? Assume no linkage.
Monoclonal antibodies are obtained from
A) human serum. B) animal serum. C) hybridomas. D) human B cells in culture. E) both human and animal serum
Why does sour cream have a sharp, tart flavor
A) from the ADP produced by microbes during glycolysis B) from the lactic acid, produced anaerobically by microbes C) from the ethyl alcohol formed as the cream is broken down by microbes D) from the citric acid released by microbes during the citric acid cycle