Because golden rice was developed to deal with problems of ____________________ deficiency, it is considered a(n) ____________________
Fill in the blank(s) with correct word
vitamin A; functional food
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Linked genes have recombination frequencies between
A. 0 and 10% B. 0 and 25% C. 0 and 50% D. 0 and 75% E. 0 and 100%
When a gamete that is lacking a sex chromosome due to nondisjunction has fused with a gamete carrying an X chromosome, this type of abnormality leads to ________.
A. Triple X syndrome B. Down Syndrome C. Edward Syndrome D. Turner syndrome E. Klinefelter Syndrome
Common spermicidal preparations have a toxic effect on Lactobacillus species and are associated with increased risk of urinary tract infection. Which of the following statements best explains this observation?
A. Production of spermicidal chemicals must be rigorously controlled to avoid contamination with organisms like E. coli. B. Lactobacillus can cause urinary tract infections when transferred from the reproductive system to the urinary system. C. Use of spermicide must be carefully monitored so that it doesn't inadvertently enter the urinary tract. D. Without the protective coating of Lactobacillus, organisms like E. coli can attach to bladder epithelial cells.
Darwin noticed that many organisms seemed well suited to
A. Being preserved as fossils B. Providing humans with food C. Surviving in the environment in which they lived D. Swimming from South America to the Galápagos Island