Mitosis, Meiosis and Fertilization

Mitosis, Meiosis and Fertilization T separatelyer Prep Notes By Dr. Scott Poethig, Ingrid Waldron and Jennifer Doherty, reciprocation section of Biology, University of Pennsylvania, 2007 Equipment and Supplies: Sockosomes (1 per student or 4 per group -- forgather graph on page 2) Optional: st multitude to survive for spindle fibers Sockosome supplies: Small or medium childrens socks (no more(prenominal) than fractional of any wiz color; even chip of pairs of each(prenominal) color sock; preferably one-half wasted and half medium or disparatewise all of one size) post fill Small squares or circles of Velcro Needle and pull back or cloth glue Ma come upg enter and Sharpies teacher Preparations: To produce sockosomes 1.Sew (or glue) one-half of a piece of Velcro (the hazy half) to the heel of one sock, and sew together the other half (the disjoint with hooks) to the heel of the other sock. 2.Fill each sock with fiber fill, and sew the c heck of each sock closed (sewing works lots offend than gluing for this step). 3.Stick the socks together at the heels. You now have a chromosome with two chromatids, where each sock represents a chromatid. 4.Pairs of homologous chromosomes attract on be represented by two sockosomes of the aforesaid(prenominal) color, one with a stripe marked along the length of each sock with a permanent marker (representing the different alleles on the two homologous chromosomes). Add a ring of tape around each sock in each sockosome to represent a gene that is inherited by aboveboard Mendelian transmission. For each pair of homologous sockosomes, dog the tape on each sockosome with a different allele of the equivalent gene. For drill: Albinism (a) (Albino) Albinism (A) (Pigmented skin) Obviously the allele differentiateed on both socks in a single sockosome should be the same. Use the graph on the next page to guide you, as you label half the pairs of homologou s sockosomes of each color with the alleles ! for skin pigmentation (A for pigmented skin and a, the albino allele) and label the other half of the pairs of...If you want to get a estimable essay, order it on our website: OrderEssay.net

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