After 38 weeks, the fetus turns its head to the lower part of the womb, preparing for its birth. After 28 weeks, the fetus develops and it’s weight increasses until the delivery time. After 12 weeks, the embryo is called fetus which is in the size of strawberry, the hands and feet have developed. After 5 weeks, the embryo is as big an apple seed with hand and foot primordia, and the tail reduces. After 4 weeks, the embryo floats in a sack containing liquid the heart beats and the brain has developed. After 72 hours from fertilization, the zygote divides into 16 cells which will stick on the uterus in several days later. About 36 hours after fertilization,the fertilized ovum divides once into 2 cells. Fertilization : the fusion of sperm nucleus with ovum nucleus producing fertilized ovum (zyogte). In humans, when embyrogenesis finishes, by the end of the 10th week of gestational age, the precursors of all the major organs of the body have been created. After fertilization the embryogenesis starts. Prenatal development is the process in which a human embyro or fetus gestates during pregnancy, from fertilization until birth. Metamorfosa: Journal of Biological Sciences: Vol 7 No 1 (2020)īiological Aspects And Family Relationship Of Local Rice (Oryza sativa L. Propagation Of Begonia Bimaensis Undaharta & Ardaka Using Tissue Cultura Technique Metamorfosa: Journal of Biological Sciences: Vol 7 No 2 (2020) Induction Of Protoplast Fusion Citrus In Vitro Germination In Medium By Addition Of Gibberellic Acid Metamorfosa: Journal of Biological Sciences: Vol 4 No 2 (2017) PANJANG BATANG DAN KONSENTRASI ZAT PENGATUR TUMBUH ZEATIN BERPENGARUH TERHADAP PERTUMBUHAN VEGETATIF ANGGREK Dendrobium sonia Metamorfosa: Journal of Biological Sciences: Vol 3 No 2 (2016) PENYELAMATAN EMBRIO Dendrobium anosmum Lindl. italica Plenck.) INTRODUKSI DI DESA BATUR, KECAMATAN KINTAMANI, KABUPATEN BANGLI, BALI PERTUMBUHAN VEGETATIF DAN PRODUKTIVITAS BERBAGAI KULTIVAR BROKOLI (Brassica oleracea L. Metamorfosa: Journal of Biological Sciences: Vol 2 No 2 (2015) italica) INTRODUKSI DI KOPANG, LOMBOK TENGAH KEMAMPUAN ADAPTASI, PENGARUH PUPUK DAN KANDUNGAN GIZI BERBAGAI KULTIVAR BROKOLI (Brassica oleracea L. SECARA IN VITRO DENGAN MEDIA YANG BERBEDA 
PERBANYAKAN ANGGREK Dendrobium heterocarpum Lindl. Metamorfosa: Journal of Biological Sciences: Vol 2 No 1 (2015) PENGARUH KOMBINASI ZAT PENGATUR TUMBUH INDOLE-3-BUTYRIC ACID (IBA) DAN 6-BENZIL AMINO PURIN (BAP) PADA KULTUR IN VITRO TUNAS AKSILAR ANGGUR (Vitis vinifera L.) VARIETAS PRABU BESTARI DAN JESTRO AG 86 Best hormone combination that can induce multiplication of new shoots are medium Z 4N 3 and Z 5N 1. Z 5N 3 medium revealed significantly different on amount of leaves and shoot height and also the best medium on amount of roots. The quantitative data which include number of leaves and shoots after 12 weeks, were analyzed using Analysis of Variance (ANOVA) and if significantly different, tested further using Duncan Multiple Range Test (DMRT) at 5% level. Variable recorded include such as the number of shoots, roots and explant’s vigor.
The treatment werer addition of Zeatin and NAA, with five concentrations of Zeatin (0, 0.1, 0,5, sweet corn and hybrids corn as the natural Zeatin) four NAA concentrations (0, 0.05, 0.1 and 0.5). The experiment employed Completely Randomized Design (CRD) with 20 combinations of treatments, with three replicates each treatment. The research was conducted in Tissue Culture Laboratory, Department of Biology, Faculty of Mathematics and Science, Udayana University from November 2015 until March 2016. grown in Murashige and Skoog (MS) basic medium. This research aimed to determine effect of hormone addition (Zeatin and NAA) to induce shoot multiplication of D. One solution to increase its population is via in vitro technique propagation.
Its population continue to decline due to unsustainable exploitation.
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