Agar is used as a solidifying agent in microbiological media since few bacteria can degrade it
Indicate whether the statement is true or false
TRUE
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In the bacterial world, a gene located on which of the following would be the LEAST likely to be transferred?
A) R factor B) F+ C) the phage Mu D) the chromosome
Which birth control method is implanted in the uterus to prevent implantation?
a. diaphragm b. IUD c. vasectomy d. ligation e. condom
Assume that in watermelon plants the genes for flower color (Y = yellow; y = orange flowers) and fruit shape (R = round; r = oval) are on the same chromosome. You cross two true-breeding plants, one with yellow flowers and round fruit and the other with orange flowers and oval fruit. You take one of the F1 individuals and cross it with a plant that is homozygous recessive for both traits. You get the following in the F2: 300 yellow flowers, round fruit; 300 orange flowers, oval fruit; 100 yellow flowers, oval fruit, 100 orange flowers, round fruit.What is the map distance between the genes for flower color and fruit shape?
A. 100.0 B. 40.0 C. 33.0 D. 25.0 E. 4.0
In North America, how does beta diversity of plants (from east to west) change as one moves from south to north?
A) It increases. B) It remains constant. C) It decreases. D) It exhibits no consistent pattern.