2) The E. coli bacteria can have several mutations that affect the lac operon
system. One mutation inhibits the ability of RNA polymerase to bind to the
lac operon. How would this affect the cell?

A)
The cell would make more lactose.
B)
There would be no lactose outside of the cell.
C)
The cell would not be able to process tryptophan.
D)
The cell would not be able to process lactose

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only