Answer: The probability of white puppies is Zero.
Genotype of the black dog is BB. This is a dominant trait, meaning that the presence of a single dominant allele ( Bb) will also give black color.
The genotype of white dog is bb. This is a recessive trait. It means that dog will express white color only if it is homozygous recessive ( bb).
When BB mates with bb, it results in all black puppies. This is so because the genotype of all puppies is Bb. Refer the Punnett square for this.
Thus, the probability that the match will produce white puppies is zero.
<h3> Answer:</h3><h3>•A catalyst is substance i.e a element or a compound that increases the rate of chemical reaction. </h3><h3>Examples: </h3><h3>1) Nickel, Ni is used in hydrogenation of palm oil into margarine.</h3><h3>2) Iron, Fe is used in Haber process. (Manufacturing of ammonia)</h3><h3>3) Nickel, platinum, or palladium.</h3><h3>4) Copper(II) oxide, vanadium(V) oxide, platinum, palladium.</h3><h3>5) Aluminum chloride, hydrogen chloride.</h3><h3>Explanation:</h3>
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<span>Water is nonpolar covalent, so all substances dissolve in it. </span>
I think that is A is the answer.