Which type of plants will only use the Calvin-Benson cycle for photosynthesis?
a. CAM
b. C3
c. All of them use the Calvin-Benson cycle
d. None of them use the Calvin-Benson cycle.
e. C4
b
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You are working in a cancer lab and are interested in identifying some genes that are important in the onset of lung cancer. You have several genes you think may be involved, so you "print" spots of the DNA sequences of interest on a microarray slide. After doing this, you isolate mRNA from both normal lung cells and cancerous lung cells. Before you use these mRNAs to probe the microarray slide, you need to
A. make cDNA and amplify the cDNA using PCR. B. amplify the mRNA using PCR. C. clone each mRNA into a BAC vector. D. add reverse transcriptase and fluorescent nucleotides to the mRNA to make cDNA. E. sequence the mRNA.
The cellular basis of muscular dystrophy is that some of a child's muscle cells
A) have combined into a structure that cannot contract. B) lack DNA. C) lack a protein that enables them to withstand the force of contraction. D) have too much of a contractile protein and become weak.
The outer ring of leaflike sepals that serves to protect the more delicate parts of a flower is referred to as the ____
a. carpel b. stamen c. corolla d. calyx e. ovule
The arrangement of organisms into taxa
A) shows degrees of relatedness between organisms. B) shows relationships to common ancestors. C) was designed by Charles Darwin. D) is arbitrary. E) is based on evolution.