Dolly the sheep ________
A) was the first mammal cloned from an adult cell
B) was the first mother who gave birth to a cloned sheep
C) received its mother's nucleus from her bone marrow
D) received its nuclear DNA from the foster mother
Answer: A
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Glyoxysomes play an important role in the germination of fat-storing seeds and are considered to be specialized ________.
A) peroxisomes B) lysosomes C) vacuoles D) centrioles E) ribosomes
If genetic drift is not accompanied by natural selection, mutation, or migration, then the frequencies of alleles will "wander" between 0 and 1. Using the accompanying figure, which of the following is an accurate statement?
A) Random sampling error generates fluctuations in allelic frequencies over generations, so all populations—both simulated and real—have been found to follow the same evolutionary trajectory. B) The effects of genetic drift are more immediate, and more pronounced, on small population sizes. C) Genetic drift will have no long-term effect on allelic frequencies if the population numbers more than 40 individuals. D) None of these is an accurate statement.
What product that is required by plants do animals–as well as plants–produce during cellular respiration?
A) CO2 B) oxygen C) glucose D) ADP
A scientist is using a microarray containing all the genes of a single species. What is the scientist likely to be using this microarray for?
A. gene expression analysis B. investigating a microbial community C. diagnosis of infectious disease D. determining the genetic sequence E. creating a clone library