Two genes, A and B, each with two alleles, control cucumber fruit color. In examining the results of genetic crosses, you find that the following genotypes are associated with specific colors: AllA or Aa produces white, ala; B/B or ala; B/b produces yellow and ala; b/b produces green cucumbers.
A. Determine the genotypes, phenotypes and phenotypic ratios of the P1 and F1 when two doubly heterozygous plants are crossed.
B. What type of gene interaction is illustrated in this cross?
C. Which allele is masking the expression of which allele?

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.