What part of the chloroplast has photosynthetic pigments in its membrane?
A. stomata
B. mesophyll
C. chlorophyll
D. thylakoid
E. stroma
D. thylakoid
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Chargaff's rules for the pairing of nitrogen bases is
A. A = C and G = T. B. A = T and G = C. C. A = G and C = T. D. A+T = G+C.
A physician discovered a cancerous tumor in the cartilage of a patient. What type of tumor is this?
A. myeloma B. retroviral C. sarcoma D. leukemia E. cyst
Leber congenital amaurosis (LCA) is a disorder characterized by early-onset retinal dystrophy which causes severe visual impairment beginning in infancy. The most common cause of the disorder is a mutated intron located in gene CEP290. Targeted deletion of the mutated intron shows promise as a treatment for LCA. The treatment of LCA is an example of the application of which of the following types of biotechnology?
A. cloning B. genome editing C. PCR D. microarrays E. recombinant DNA technology
Plant cells typically achieve cytokinesis by:
A. chromosome condensation. B. forming a cleavage furrow that pinches the cell into two. C. binary fission. D. chromosome elongation. E. forming a cell plate across the middle of the cell.