Suppose an experimenter becomes proficient with a technique that allows her to move dna sequences within a prokaryotic genome.
if she moves the operator to the far end of the operon, past the transacetylase (laca) gene, which of the following would likely occur when the cell is exposed to lactose?
a) the repressor will no longer bind to the operator.
b) the operon will never be transcribed.
c) the inducer will no longer bind to the repressor.
d) the structural genes will be transcribed continuously.
e) the repressor protein will no longer be produced.

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?

How does photosynthesis show the conservation of mass and energy?