In which of the following excretory tubule segments in mammals does about 65 percent of the water
from the filtrate get reabsorbed?
a. distal convoluted tubule
b. Bowman's capsule
c. descending segment of the loop of Henle
d. proximal convoluted tubule
e. ascending segment of the loop of Henle
D
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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.
What happens to a cell that is placed in a hypotonic solution?
a. The cell swells. b. The cell shrinks. c. The cells stays the same size. d. The cell will crenate.
The major and minor grooves of DNA are features of the helix that can be attributed to _______, which involves tight packing of DNA bases in a duplex
Fill in the blank(s) with correct word
The ________ coordinates muscle movements of the body
A) hypothalamus B) cerebellum C) cerebrum D) medulla E) parietal lobe