Researchers combined sequences of fruit-fly DNA from a gene for a particular trait with frog DNA. The mixture was heated to separate the DNA strands. Cooling allowed the single
strands to form pairs. The researchers observed that some of the fruit-fly DNA paired with
frog DNA
Fruit fly
Recombined fruity
and frog sequence
DNA sequence
from gene
Frog
Strands separate when
mixed and heated
Frog DNA
The results provide evidence that -
A. similar nucleotides are present in both fruit-fly and frog DNA
B. fruit flies and frogs can be made to develop some of the same physical traits
C. heat can cause mutations in the DNA sequences of organisms
D. the replication of genetic material can occur at any temperature

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

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.