Why do water and small molecules move from the glomerulus into the filtrate?
A. glomerular blood pressure
B. active transport
C. diffusion against the concentration gradient
D. diffusion down the concentration gradient
E. secretion
Answer: A
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The number of linkage groups in an organism with sex chromosomes equals:
A. 1n B. 2n +1 C. 1n + 1 D. 2n + 2
Which of the following regions of a structural gene contains the information that specifies an amino acid sequence?
A. promoter region B. transcribed region C. terminator D. regulatory sequence E. enhancer region
If tyrosine and isoleucine undergo condensation, the new bond that is formed is between the:a
oxygen of the R group and the hydrogen of the amino group. b. carbon of the R group and the nitrogen of the amino group. c. carbon of the carboxyl group and the hydrogen of the R group. d. carbon of the carboxyl group and the hydrogen of the amino group. e. carbon of the carboxyl group and the nitrogen of the amino group.
A(n) ________ is a bacterial virus which is integrated into the host cell DNA.
A. lytic phage B. prophage C. plasmid D. transposon E. insertion phage