Five sample bags of rice seed arrive at a lab that includes both GMO blight-resistant rice and
rice that does not have the disease-resistant gene. Assuming the scientist has a known sample
of the blight-resistant rice, how might she determine bags contain additional samples of this
rice strain?
a. by using a DNA profile
b. by developing a genetic marker
c. by inserting the gene into a plasmid
d. by extracting stem cells
A
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What can scientists study in the fossil record to learn about the distribution of grasses in the past? Select all correct choices
A. herbivore teeth B. herbivore hooves C. stromatolites D. phytoliths E. the ratio of different carbon isotopes in fossils
Some protist cell surfaces have __________, including silica or calcium carbonate.
Fill in the blank(s) with the appropriate word(s).
ATP acts as what type of agent in almost all metabolic pathways?
a. energy transfer b. feedback c. catalytic d. synthetic e. enzymatic
Which of the following describes the correct path of light in a compound light microscope, from the illumination source to the eye of the observer?
a. Condenser lenses ? prism ? specimen ? objective lenses ? body tube ? ocular lens ? eye b. Ocular lens ? body tube ? condenser lens ? specimen ? objective lens ? prism ? eye c. Objective lenses ? specimen ? condenser lenses ? body tube ? prism ? ocular lens ? eye d. Condenser lenses ? specimen ? objective lenses ? body tube ? prism ? ocular lens ? eye