White eyes are recessive in flies. can two red eyed flies have white eyed offspring

Considering that white eyes are a recessive trait in flies, it is possible for two red-eyed flies to have offspring with white eyes only if both are heterozygous for this trait.

Explanation:

For two individuals with dominant phenotype for a trait to have offspring with the recessive trait, both must have a heterozygous genotype.

In the case of the characteristic eye color of the flies :

When both parents are heterozygous, their genotype is Rr

In Punnett Square it can see the result of the crossing of these individuals:

Punnett Square :

Rr X Rr

Alleles     R     r

R              RR   Rr

r               Rr    rr

In the offspring, the probabilities are:

This is the possibility of two red-eyed flies having white-eyed offspring.

it will increase due to the time span

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."