What is the cyncytium?
a. rod-like structures discharged from mucus in free-living flatworms
b. a layer of cells formed by nuclear division without cytokinesis
c. a layer of fused cells that covers muscle layers in flatworms
d. a nerve structure associated with photosensory cells in tapeworms
c. a layer of fused cells that covers muscle layers in flatworms
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To find the gene that encodes for the blue-light receptor, researchers inserted the gene for the PHOT1 protein into insect cells growing in culture
When they exposed the transgenic cells to blue light, they found that the PHOT1 protein became phosphorylated. No other plant proteins were present in the insect cells. Which of the following is a reasonable conclusion from this result? The PHOT1 protein _____. A) enabled the insect cells to photosynthesize B) phosphorylated itself in the presence of blue light C) is not responsive to blue light D) is photoreversible E) is not functional in insect cells
Which of the following serves as a connection between the nervous and endocrine systems?
A. hypothalamus B. pineal gland C. thyroid gland D. pancreas E. adrenal gland
Based on your pedigree data, does the inheritance of color blindness appear to be related to the sex of the offspring?
a. Yes b. No
If an athlete's body fat level is too high, what is the best weight-loss approach?
What will be an ideal response?