In fruit flies, the gene for red eyes (r) is dominant and the gene for sepia eyes (r) is recessive. if two red-eyed heterozygous flies (rr) mate together, what are the possible genotypes of their offspring? (hint: you many want to complete a punnett square.) rr and rr rr only rr and rr rr, rr, and rr

The ratio of the possible genotypes of their offsprings are: 1 RR : 2 Rr : 1 rr

The punnet square is a diagram in a square form that is used to forecast the possible genotypes of offspring during breeding experiments.

From the given information:

If two heterozygous flies Rr mate together, the number of the possible genotypes of their offspring can be determined by using the punnet square.

            R        r

R          RR     Rr

r           Rr      rr

Therefore, the genotypes are:

Therefore, we can conclude that the ratio of the possible genotypes of their offsprings are: 1 RR : 2 Rr : 1 rr

Learn more about monohybrid crossing here:

link

amber has allowed scientists to study dna that has been preserved over millions of years.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.