Mieosis and sperm slides

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Meiosis 1 . MEIOSIS 2 . Meiosis• The form of cell division by which gametes, with half the number of chromosomes, are produced .• Diploid (2n) → haploid (n)• Meiosis is sexual reproduction .• Two divisions (meiosis I and meiosis II) . II 3 . Fertilization• The fusion of a sperm and egg to form a zygote .
Male: spermatogenesis Female: oogenesis Meiosis is similar to mitosis with some chromosomal differences . Spermatogenesis 2n=46 human sex cell diploid (2n) n=23 n=23 meiosis I n=23 n=23 n=23 n=23 sperm haploid (n) meiosis II Meiosis - mouse testes Parent cell 4 gametes 1st division 2nd division Interphase I Similar to mitosis interphase .
This process is called meiosis . • Meiosis is the process of cell division in which sex cells (eggs and sperm) are formed . • Eggs and sperm are gametes that unite toEggs and sperm are gametes that unite to produce a cell zygote that may develop into an embryo . During meiosis, a cell undergoes two divisions to produce four sex cells, each
Meiosis Provides Variation Depending on how the chromosomes line up at the equator, four gametes with four different combinations of chromosomes can result . Genetic variation also is produced during crossing over and during fertilization, when gametes randomly combine .
meiosis, rather than mitosis • Mitosis would result in offspring with 4 sets of chromosomes, doubling after each generation • Meiosis results in one set of chromosomes in each gamete • Fertilization and meiosis alternate in sexual life cycles to maintain chromosome number
Meiosis Meiosis is Two cell divisions (called meiosis I and meiosis II) IIwith only one duplication of chromosomes . 15 . Meiosis in males is calledspermatogenesis and produces sperm .Meiosis in females is called oogenesis and produces ova . 16 .
Meiosis in Males The process by which sperm are produced in male animals is called spermatogenesis . Spermatogenesis occurs in the testes (male reproductive organs), and produces male gametes called sperm . Formation of Sperm (Video clip) stDuring sperm formation, the cytoplasm is divided equally after the 1 meiotic division .
Title: Meiosis 1 Meiosis 2 Mitosis vs . Meiosis 3 Mitosis vs . Meiosis . BOTH INVOLVE CELL DIVSION ; Goal of Mitosis to produce 2 daughter cells that are genetically identical to the parent (same DNA) . -Used for growth -1 set of division -1 diploid cell ? 2 diploid cells; 4 Mitosis vs . Meiosis . Goal of Meiosis to produce sperm or eggs, also
During cytokinesis, the cytoplasm is divided into separate cells . . The process of cytokinesis differs in animal and plant cells . 0 . Cell division is a continuum of dynamic changes . Teaching Tips . Students might keep better track of the sequence of events in a cell cycle by simply memorizing the letters IPPMAT: the first letters of interphase, prophase, prometaphase, metaphase, anaphase, and . . .
Meiosis is a special type of cell division that is used in sexual reproduction . The cells that result from meiosis, such as sperm and eggs (gametes, or sex cells), have half the number of chromosomes as the parent . The sperm and egg from two different individuals can fuse to make a new, genetically different individual .
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Mieosis and sperm slides