9. In squash, the allele for white fruits (W) is dominant over the allele for yellow plant is crossed with a yellow-fruited plant and all the offspring are yellow, what are the possible
genotypes of the parents and the offspring?
a. parents
b. offspring

The parents are homo-zygous ww and therefore their offspring will be homo-zygous ww.

A purebred organism is an individual that exhibits the same alleles for a given gene locus (w allele).

In conclusion, in this case, the parents are homo-zygous ww and therefore their offspring will be homo-zygous ww.

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parents: ww

offspring : ww

Explanation:

Purebred is the organism living beings that has their allele in their authentic form such as WW as tall and ww small and not heterozygous.

The combination of the two alleles of a gene determines the genetic trait of an organism.

Recessive alleles formed when the allele is masked by other alleles in the heterozygous condition always.

parents: ww

offspring : ww

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.