Approximately how many genes are contained in the human genome?
25
250
20,000
2.5 million
20,000
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According to critics, the PACE Trial team are operating within a ______.
A. exploratory research design where they are trying to explore the outcomes of various interventions B. closed system or groupthink in which they ‘know’ their theory is correct C. research design where they are trying to replicate pre-existing the outcomes of various interventions D. none of these
Before meiosis, the sperm cell:
a. contains 46 chromosomes. b. is significantly larger than the egg cell. c. contains two X chromosomes. d. is more likely to conceive a girl than a boy.
What technique ensures that personal characteristics that might affect the outcome of the experiment are divided proportionally among the participants in the different groups, making groups equivalent?
a) Dependent variables b) Random assignment c) Independent variables d) Statistics
In the DSM-5, there are __________ chapters of childhood disorders
a) 2 b) 3 c) 4 d) 5