Genetics, 25 microscope specimens

Description

Mitosis – Onion. Root tip of onion with growth zone and mitotic divisions in all stages
Pollen – Golden poppy. Pollen with germinating pollen
Meiosis – Lily. Microspore mother cells, 1st cell division: Leptotene-zygote
Meiosis – Lily. Microspore mother cells, 1st cell division: Diakinesis – telophase
Meiosis – Lily. Microspore mother cells, 1st cell division: Interkinesis (4 stages)
Archegonium – Virgin hair. Female, bottle-shaped genitalia of mosses, where the egg sits.
Archegonium – Virgin hair. Longitudinal section
Coupling – Spirogyra (algae). Coupling between strands with coupling channels and formation of zygotes
Egg development – Sea urchin. Different larval stages up to the pluteus stage in the same preparation
Giant chromosomes – Dance mosquito larvae. Salivary gland tissue is stained to highlight DNA, squash technique
Giant chromosomes – Dancing mosquito larvae. Salivary gland tissue is stained to highlight DNA, section
Fertilization – Tapeworm. Fertilization of eggs. Section
Pronucleus – Coilworm. Female and male pronucleus, haploid nucleus in egg and sperm cells. Cut
Splitting – Coilworm. Meiosis and early cleavage. Cut
Spermatogenesis – Crab. Testis with meiosis and spermatogenesis. Section
Spermatogenesis – Mouse. Testis with spermatogenesis. Cross Section
Follicle – Rabbit. Ovary with follicles in different stages. Longitudinal section
Embryology – Fish. Undeveloped shows mitosis in animal cells. Longitudinal section
Chromosomes, female – Human.
Blood
Chromosomes, male – Human. Blood
Banana fly – Wild type
Banana fly – “Barr-eye”, mutant with barred eye
Banana fly – “Brown eye”, mutant with brown eye
Banana fly – “Vestigal wing”, mutant with rudimentary wing
Banana fly – “White eye”, mutant with white eye