What is the phenotypic ratio of the offspring of two parents who do not show any signs of the deafness but are carriers (Dd)?
Answer: 3:1
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Helicobacter pylori appears to have some connection with
A. acid reflux disease. B. ulcers. C. dental caries. D. stomach cancer. E. ulcers AND stomach cancer
Florists often create brightly colored flowers by immersing the stems in colored water. Which
cells are primarily responsible for this color change?
a. phloem b. xylem c. xylem and phloem d. neither xylem nor phloem
The smallest and most numerous blood vessels are the ______.
a) veins b) artery c) capillaries d) venules e) arterioles
Answer the following questions true (T) or false (F)
1. Chromatin is composed of DNA and special packaging proteins called hopanoids. 2. A resolution of 1 ?m would be better than a resolution of 0.5 ?m. 3. All types of radiation are used for microscopy.