A microtubule protofilament is formed by the: lateral association of only γ-tubulin subunits. head-to-tail association of only γ-tubulin subunits. lateral association of tubulin dimers. head-to-tail association of tubulin dimers.

What is a possible advantage of genetically modified crops? A) New 'super weeds' that dominate fields may result. B) New varieties of pest resistant crops can be produced. C) New varieties of allergens may emerge from the genetically modified crops.

Which structure is found in all eukaryotic cells? cell wall chloroplast mitochondria?

A client with a magnesium concentration of 2.6 meq/l (1.3 mmol/l) is being treated on a medical-surgical unit. which treatment should the nurse anticipate will be used

Which of the following chemical equations represents photosynthesis? a. carbon dioxide plus water yields glucose (sugar) and oxygen b. oxygen plus carbon dioxide yields water and glucose c. glucose plus oxygen yields carbon dioxide and water d.

Two genes of a flower, one controlling blue (b) versus white (w) petals and the other controlling round (r) versus oval (o) stamens, are linked and are 10 map units apart. you cross a homozygous blue-oval plant with a homozygous white-round plant.

How are organisms in the domain eukarya different from those in teh domain archaea?

Secondary succession occurs in ecosystems without soil.

What are some viable ways of lessening the effect that increased carbon has on the following? Impact on human life Destruction of the cycle Global warming Alteration/destruction of species, biomass

2. Describe the three layers which ocean water is divided based on temperature.

Select the correct answer. Jane is obese and suffers from osteoarthritis. What is the likely cause? A. Jane has high levels of triglycerides and LDL, as well as low levels of HDL. B.