What stimulates the production of antibodies by B-cells?
a. B-cells bind to and recognize specific antigens and immediately start to produce
antibodies.
b. T-helper cells recognize specific antigens and signal B-cells.
c. Antigens are recognized by macrophages as nonself, and macrophages signal B-cells.
d. Antibodies are produced any time an antigen enters the body.
B
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"Tardigrada" means ____
a. tough exoskeleton b. many proglottids c. slow walker d. short digestive system e. Coelom
Change in state form a liquid to a gas
What will be an ideal response?
The Encyclopedia of DNA Elements (ENCODE) project aims to discover functional elements in DNA. One technique employed is DNase-seq. This technique employs a DNase enzyme that digests accessible regions of chromatin, while inaccessible regions remain undigested. The undigested DNA is then sequenced. Which of the following is likely true of the DNase-seq results?
A. The sequenced DNA will be the same from cell type to cell type. B. Centromeric DNA is likely to be sequenced in all samples. C. Unsequenced DNA is likely part of euchromatin. D. Unsequenced DNA regions were likely bound to nucleosomes.
What is present in both the light-dependent and light-independent reactions?
A. ATP B. Oxygen C. Glucose D. Rubisco E. water