Larvae of the silkworm ( Bombyx mori) may display surface patterns called striped and plain. Another pattern is called moricaud, in which the larva is delicately marked with lighter dark lines and dots. Crosses between true-breeding silkworm moths in the three possible combinations yield F1 generations and F2 generations (produced by inbreeding the respective F1 flies) as follows.

Parents F1 F2 Stripedx plain striped 1001 striped: 316 plain Striped x moricaud striped 725 striped : 227 moricaud Plain x moricaud moricaud 1421 moricaud : 443 plain

A. How many genes control this pattern in the larvae?

B. How many alleles does each gene have?

C. Define symbols for the alleles then write the dominance relationships among the alleles.

D. List the possible genotypes for each phenotype using the symbols assigned above: striped Plain Moricaud

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium