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Transcript
Midterm Review Meiosis • • • • • Oogenesis Synapsis forms – When Homologous pairs separateBoth male and female gonads – Fusion of Gametes + Development • Genetic Makeup • External Fertilization – – Egg numbers – Where • • • • Differentiation Gastrula Mesoderm Blastula • Ectoderm – • Endoderm – • Mesoderm - Reproductive Cycle • • • • Ovulation Menstruation Follicle Stage Corpus leuteum • Each Hormone involved • Permanent Cessation Asexual Compare and Contrast • • • • • How many individuals needed Where it occurs Genetics Chromosome numbers Organisms • Chromosome Numbers • Uncontrolled • In Plants – Genetics • Mother is Hybrid Brown eyes • Father is Blue eyes • Percent of children with brown eyes • One pea plant grown indoors • Another outdoors • Why are the pods a different color • Change in Nitrogen Bases • Caused by Blood Types • IA • IB • i DNA • Basic Unit • Shape • Who • A T C C C GG T T AA T CCC • What will happen if one kind of nucleotide is substituted for another? Replication • What takes place first – • What is the original Strand called – • What does it also synthesize? • What determines the sequence of amino acids that make up molecules? RNA • What base is different Microscope • Total Magnification • Field of View – Low – High Operating • Steps – 1. – 2. – 3. – 4. • Provides more light • To move the specimen to the right • Stain used for Plant Cells – Also used to detect starch • Stain used for cheek cells Plant Cell • What happened? Field of view is 1.5 mm • Size of each cell In microns KR Genetic Disorders • • • • • • • • RG Colorblindness PKU Tay-sacs Hemophilia Down’s Syndrome Klinefelter’s Syndrome Albinism Sickle Cell Anemia Cloning • • • • How is it done Genetics Advantages Disadvantages Laboratories • Technique • Used to treat the DNA Starch Glucose Iodine Transcription- Translation • DNA CCC CTC ATG ATC AAA GTC • mRNA - • Amino Acid - • Define Evolution • Are similar in structure and origin • A characteristic that makes an organism well suited fro its environment • Which of Darwin’s principles demonstrates a struggle for existence among organisms • Which process has the most influence on the rate of evolution • Existing forms have evolved from _______ • How have mosquitoes gone through the process of Natural Selection • Where did the resistance come from • When • How does natural selection work
