Genome sequence analysis suggests that Neanderthals
A) never interbred with humans.
B) are more closely related to chimpanzees than humans.
C) were lactose intolerant as adults.
D) could not speak.
Answer: C
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________ of cytosine bases in mammals causes decreased accessibility of DNA to the transcriptional machinery, resulting in transcriptional repression
Fill in the blank with correct word.
Competency has been observed in only a limited number of species in nature, but we have found ways to induce the process upon other species in the laboratory.
Answer the following statement true (T) or false (F)
Which of the tools below is used to cut the gene from its normal location?
A. restriction enzyme B. plasmid C. bacteriophage D. vector
While studying the plant Arabidopsis, a botanist finds that an RNA probe produces colored spots in the sepals of the plant. From this information, what can be inferred?
a. The differently colored plants will attract different pollinating insects. b. The RNA probe is transported only to certain tissues. c. The colored regions were caused by mutations that occurred in the sepals. d. The RNA probe is specific to a gene active in sepals. e. More research needs to be done on the sepals of Arabidopsis.