In a pedigree, the first affected family member seeking medical attention is the
____________________. Fill in the blank(s) with the appropriate word(s).
ANS: proband
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Which of these ecosystems has the lowest productivity?
A. tropical forest B. tundra C. savanna D. open ocean E. lake
Which of the following statements is false?
a. The greatest amount of photosynthesis takes place in the palisade mesophyll. b. There are more stomata on the upper epidermis of most leaves than on the lower epidermis. c. The palisade mesophyll is more densely packed than the spongy mesophyll. d. The surface area of the root system is greater than that of the shoot system. e. Leaf hairs are extensions of single epidermal cells.
Which of the following is NOT involved in capturerecapture
methods of population sampling? a. DNA fingerprinting b. tags c. collars d. leg rings e. wing markers
Which of the following is NOT a step in bacterial cell division?
a. Disappearance of nuclear envelope b. Splitting apart of two new daughter cells c. Cell elongation d. Replication of the genetic material