Four of the following are useful for dating fossils greater than 10 million years. Select the exception
a. Carbon-14 d. Thorium-232
b. Uranium-238 e. Rubidium-87
c. Uranium-235
A
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Which of the following molecular techniques, or combination of techniques, would be most appropriate for detection and quantitation of an RNA retrovirus, like HIV, in a blood sample in order to establish the patient's viral load?
a. RT-PCR b. Real-time PCR c. Real-time RT-PCR d. Multiplex PCR
Use the scientific method to analyze this question: Why has the population of kangaroo rats declined in Riverside County?
What will be an ideal response?
Which of the following is NOT true regarding
apoptosis? a. It is programmed cell death. b. It sculpts body parts. c. It primarily eliminates old, diseased cells. d. It involves cell self-destruction. e. The formation of the human hand is an example
On a hot sunny day, which of the following would help protect a plant from water loss?
A. both cuticle and stomata B. cuticle only C. stomata only D. both cuticle and phloem E. both phloem and stomata