By weight, the amount of DNA in chromatin is less than that of histone
Indicate whether the statement is true or false
FALSE
Explanation: The weights of DNA and histone in chromatin are equal.
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From the equator to latitudes 10° north and south,
high rainfall, high humidity, and mild temperatures can support __________. Fill in the blank(s) with the appropriate word(s).
Tall (D) is dominant to dwarf (d). Give the F2 genotypic and phenotypic ratios of a cross between a
pure-breeding, tall plant and a pure-breeding, dwarf plant. What will be an ideal response?
A negative feedback system is designed to set off mechanisms that will:a
lower the abnormal value until it reaches its normal level. b. increase the abnormal value until it reaches normal levels. c. return the system to steady-state levels. d. speed up the body's response until it reaches its normal levels. e. slow down the metabolic rate until steady-state levels are reached.
Which of the following statements about the colon is NOT true?
A. The colon is active in water absorption, removing about 95% of the water that enters it and returning it to the bloodstream. B. Feces consists of about 25% water and 75% solids that are mainly bacteria from the intestinal tract. C. Insufficient absorption of water can result in diarrhea that may be life-threatening. D. Cells in the walls of the large intestine absorb vitamin K that is produced by bacteria resident in the colon. E. The last section of the colon is the rectum, which terminates in the anus.