Certain species of lilies, if eaten by pregnant ewes, can cause the ewes to produce lambs with severe birth defects because the plants' cyclopamine can block embryonic response to Shh
This type of birth defect is a phenocopy of mutations in which genes?
Shh
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Which of the following statements about mutations is false? a. Most mutations are neutral or deleterious
b. Mutations are small scale changes in DNA. c. Mutations affect individuals but cannot be passed on to offspring. d. Mutations can improve an organism's adaptation to its environment.
Which of the following is used as an electron carrier by living organisms?
A. NADP+ B. Ubiquinone C. NAD+ D. All of the choices are correct.
Antidiuretic hormone and oxytocin are products of
a. endocrine glands. b. neurosecretory cells. c. blood capillaries. d. the anterior pituitary. e. kidney and uterine wall cells, respectively.
Spreading contaminated soil on a pad so that water and other compounds can leak out of the soil is known as ________
A) bioprocessing B) biostimulation C) bioventing D) composting E) landfarming