Choose the true statement about foreign DNA in the human genome.
A. Most of the foreign DNA in the human genome is ancient.
B. Most of the foreign DNA in the human genome is coding DNA.
C. Like the Drosophila genome, the human genome is constantly eliminating its foreign DNA.
D. New foreign DNA is regularly entering the human genome.
A. Most of the foreign DNA in the human genome is ancient.
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You have isolated a piece of DNA that you believe contains an interesting gene. Using a mix of RNA polymerase and ribonucleotides, you perform in vitro transcription
However, even though all of your controls work, no mRNA is created from your DNA fragment. Working backward, you note that your DNA preparation removed approximately 250 base pairs from the 5' end of the gene. The most likely explanation is that during DNA preparation A) the termination signal was removed. B) the RNA polymerase became inactivated. C) the 5' methyl guanosine cap was removed. D) the promoter was removed. E) None of these explains the negative results.
You are riding on your bike and stop pedaling, coasting along the road. Eventually, your bike slows down and stops. What happened to the energy of your motion when your bike stopped?
A) It was returned to the bicycle. B) It was converted back to chemical energy. C) It was released as heat. D) It was used to chemically break down the tires.
For the role of partner or spouse of the addict/alcoholic, the present text recommends use of the term?
a) ?scapegoat. b) ?family manager. c) codependent d) ?chief enabler.
Which taxon is NOT gram-positive?
A) Actinobacteria B) Firmicutes C) Sphingobacteria D) Streptococcus