In cats, orange colour is due to the allele B and black colour is due to the allele b. A cat that is heterozygous (Bb) has a colouration known as tortoise shell (black and orange patches of fur). The alleles for this character are located on the X chromosome.

A. What phenotypes would be expected in the offspring resulting from a cross between a black male cat and a
tortoise-shelled female?
B. What kind of dominance relationship exists between the alleles for coat colour in these cats?

its d lol

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imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy

the correcdt answer shoukld be a