The sky is blue due to Rayleigh scattering.
Particles in our atmosphere split the white light that the sun emits to the shortest wave length
(Blue)
Skies becomes red during the sunset since an angle forces the light to travel through more dust particles making it a longer wavelength
(Red)
Water in the clouds are not small enough to split light into a specific colour so it remains the same
(White)
I would appreciate a brainliest.
Answer:
A white mouse is purely recessive, and will produce black offspring if the other mouse contributes a black gene.
Explanation:
If Bb then the offspring will be 50% Bb and 50% bb. This is called a test cross, where we use a recessive to determine the genotype of a dominant phenotype.
An antibody, because antibodies are produced for a specific virus and are unique to that virus, that protein is the response to influenza.
Answer: D. Individuals may now have their DNA analyzed to determine ancestry.
Explanation:
Answer:
It decreases the levels of cAMP in the cell, repressing transcription from the lac operon.
Explanation:
When glucose is absent, cAMP serves as coactivator binds to CRP, the catabolite gene activator protein. The CRP-cAMP complex binds to the site near the lac promoter and stimulates the expression of the operon by RNA polymerase many folds.
Catabolite repression refers to inhibition of the synthesis of enzymes of lactose catabolism when glucose is present as an energy source. In the presence of glucose, synthesis of cAMP is inhibited resulting in its lower cellular concentration. The lower cAMP levels do not allow the binding of cAMP and CRP. The result is reduced expressed of lac operon.
