The table shows the crossing-over frequencies for three genes in the fruit fly Drosophila. The greater the frequency, the more likely that crossing over separates the genes. The gene for eye color (A), wing shape (B), and body color (C) are found on the same chromosome.
Genes
Crossing-over frequency
12.5%
A and B
A and C
6%
Band C
18.5%
What are the two most likely sequences of these genes on a gene map for this chromosome? Select two options.
A. B, A, C
B. A, B,C
C. C, B, A
D. C, A, B

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels