When working with pca plants, Mendel observed several traits cross at the same time. Tall plants (TT or Tt) are completely dominant to short plants (tt). He saw that yellow sceds (YY or Yy) is completely
dominant to green seeds (yy). Diagram the crossing of two pea plants that are heterozygous for both
traits and use a Punnett Square to show the possible combinations of genotypos. List the genotype and
phenotype ratios.

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

Can a trait be both polygenic and have multiple alleles? explain why or why not.