What is the main advantage of the settling-point model of body-weight regulation over then body-fat set-point model?
What will be an ideal response?
It's more consistent with the data and in those cases in which both models make the same prediction, the settling-point model does so more parsimoniously - that is, with a simpler mechanism that requires fewer assumptions
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The polysaccharide that helps strengthen cell walls in transport tissues of hornworts is called ____
a. xylan b. chlorophyll c. lignin d. chlorophyll a e. chlorophyll b
Identify the mode of inheritance of the trait.
Above is a pedigree for a common human trait (not a disease) controlled by a single gene. Shaded symbols are for individuals exhibiting the trait.
A) Dominant
B) Recessive
C) Either dominant or recessive
D) Cannot be determined
You have evidence that a gene, VTE4, of known sequence and well-understood transcriptional regulation, is available from another lab
The product of this gene enables seeds to produce a significantly increased amount of vitamin E from a substrate already produced in Brassica napus, the plant that gives us canola oil. To produce canola oil with increased vitamin E, how would you proceed? A) Select Brassica plants with the highest titer of the vitamin, isolate the genes responsible, and cause these genes to duplicate. B) Use a yeast system to engineer yeasts that produce the vitamin, and get manufacturers to add this to the canola oil during bottling. C) Introduce the gene and necessary cis elements into Brassica, along with a reporter gene, then measure the vitamin E produced. D) Clone VTE4 in A. tumefaciens and use these bacteria to produce transgenic Brassica. E) Introduce VTE4 into tomato plants or another food that humans eat more than Brassica.
Gastrin is a hormone secreted by the ________
Fill in the blank(s) with correct word