Which of these statements best describes a scientific theory?
It is a description of an observation which does not change over time.
It is a description of an observation after research over a period of time.
It is an explanation for an observation which is not based on data.
It is an explanation for an observation after several valid experiments.

Can you answer all these questions?

In camellia plants, flower color is controlled by a single gene with codominant alleles. a camellia plants with red flowers (rr) is crossed with a camellia plant with white flowers (ww). what are the expected phenotypes of the offspring of this cross? a. half will have red flowers and half will have white flowers. b. all will have pink flowers. c. all will have red flowers. d. all will have both red and white flowers.

Which statement correctly describes why the dna synthesis is discontinuous on one template strand while continuous on the other? (select all that apply.) a. it is due to the semiconservative nature of dna replication. b. it is due to the nature of the dna polymerase which can only add new nucleotide at the 3' end. c. it is due to difficulty in unwinding the dna template for replication. d. it is due to antiparallel nature of the dna molecule. e. it is due to the fact that the dna polymerase is not active enough.