TYPES OF REPRODUCTION ASEXUAL VS SEXUAL

Let’s do some comparing!Prokaryote/Eukaryote?Unicellular/Multicellular?Heterotroph/Autotroph?Asexual/Sexual? Eukaryote, Multicellular, Heterotroph, Sexual Eukaryote, Unicellular, Heterotroph, Asexual

Let’s do some comparing!Prokaryote/Eukaryote?Unicellular/Multicellular?Heterotroph/Autotroph?Asexual/Sexual? Eukaryote, Multicellular, Autotroph, Sexual Eukaryote, Multicellular, Heterotroph, Sexual

PRE-TEST: TRUE OR FALSE? 1. Cells in the bodies of multicelled creatures, such as humans, are reproduced in a way that is very similar to the method used by most protozoa. _____ 2. All human cells have two complete sets of chromosomes. _____ 3. In biology, fertilization is when one cell divides into two cells. _____ 4. Inside of cells, nearly all the genes are located on special structures known as microtubules. _____ 5. Cell growth takes place during the stage of a cell's life cycle known as interphase. _____

ASEXUAL REPRODUCTION All genetic information from 1 parent –Therefore, have same DNA as parent Results in clones (genetically identical orgs.)

TYPES OF ASEXUAL REPRODUCTION BINARY FISSION –Cell simply divides in half –DNA copies itself and then cell divides –results in 2 genetically identical cells EX: Bacteria, Protists

TYPES OF ASEXUAL REPRODUCTION BUDDING –NUCLEUS (CONTAINING DNA) DIVIDES EQUALLY –CYTOPLASM DOES NOT –THEREFORE, RESULTS IN “BUDS” EX: YEAST, HYDRA

TYPES OF ASEXUAL REPRODUCTION SPORULATION –“SPORE FORMATION” –SPECIALIZED SINGLE CELLS COMING FROM ONE PARENT EX: OCCURS IN MOLD AND OTHER FUNGI

SEXUAL REPRODUCTION TWO PARENTS HALF (1/2) GENETIC INFO FROM EACH PARENT –THEREFORE, OFFSPRING GENETICALLY DIFFERENT FROM PARENTS GENETIC VARIATION!!!!! –SHARE SOME SIMILARITIES GAMETES (SEX CELLS) EACH CARRY A HALF OF THE INFO

SEXUAL REPRODUCTION FERTILIZATION: –THE JOINING OF SEX CELLS ½ genetic (egg) + ½ genetic (sperm) = 1 genetically whole organism

POST QUIZ: TRUE OR FALSE? 1. Diploid cells have two full sets of chromosomes. _____ 2. DNA replication takes place during the metaphase stage of mitosis. _____ 3. Chromosomes are not visible during most of a cell's life cycle. _____ 4. Asexual reproduction requires only one parent. _____ 5. Meiosis does not occur in most types of cells. _____