In dogs, phenotype a (erect ears and barking while following a scent) is caused by dominant alleles; phenotype b (droopy ears and silent while following a scent) is caused by recessive alleles. a dog that is homozygous for both traits of phenotype a is mated to a dog with phenotype b. if the genes for the two traits are unlinked, what is the expected f1 phenotypic ratio?

1:0

Explanation:

A dominant trait can be described as a trait which masks the effect of a recessive trait. A recessive trait can be described as a trait which gets suppressed by a dominant trait.

In the above-mentioned scenario as the dog carrying the dominant traits has homozygous alleles for both the traits, this means that the offsprings produced will have the same phenotype as the parent with the dominant alleles.

The genes received by the recessive parent will be suppressed.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.