Which of the following is a characteristic of savannas?
a. plants with extensive root systems
b. short dry seasons and no trees
c. grasses that survive cold winters
d. evergreen conifers and frequent rain
a. plants with extensive root systems
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The major obstacle to the use of xenotransplants is _____
a. the lack of human donors b. finding nonhumans with similar-sized organs c. resistance from opponents of genetically modified animals d. organ rejection by recipients e. the possibility of viral transfer from nonhuman primates to human patients
Rosalind Franklin died from ovarian cancer at the age of 37. Her cancer was probably caused by DNA mutations that
arose from _____.
a. extensive exposure to long wavelength radiation b. contaminated DNA samples c. chemical exposure d. unrepaired DNA replication errors e. extensive exposure to x-rays
Cells obtained from a Triplo-X woman would contain ________ Barr bodies
A) 0 B) 1 C) 2 D) 3 E) 4
The uptake of foreign DNA into bacterial cells is called ________
A) translation B) transcription C) transgenesis D) transfection E) transformation