The data below shows recombination of genes (1-5) according to the amount of time available for transfer of the bacterial chromosome during conjugation between different genetic strains in E coli. Based on these data, which gene is closest to gene 1? (Note: The entire chromosome is transferred in 100 minutes.)
A. gene 2
B. gene 3
C. gene 4
D. gene 5
A. gene 2
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The stable daughter element, or final decay product, of uranium 238 is ________
a. nitrogen-14 b. thorium 234 c. lead 206 d. plutonium-239
In living organisms, emergent properties
A. functionally arise from smaller successful parts and work together for a more successful organism. B. are produced in a new generation of offspring that will show the properties. C. develop tissue and organ systems, which show higher levels of complexity. D. functionally arise from larger successful parts working together for stronger organism. E. evolve new properties from other similar organisms.
Which of the following is the site where mature
sperm are stored? a. ureter b. urethra c. vas deferens d. bulbourethral gland e. epididymis
Enzymes work by lowering the ________ energy of a reaction.
a) kinetic b) potential c) released d) activation