Bio Review: Unit 1 Diversity of Living Things Diversity- all the different kinds of life on Earth Species Diversity- variety of species‚ abundance of the species in a given area Genetic Diversity- variation of genes within a species Ecosystem Diversity- diverse range of habitats‚ various organisms within habitats & relationships between them Prokaryotes Eukaryote Appearance Size - Always smaller - 1000x larger DNA structure - Plasmid (one strand circular DNA) - Dna in nucleoid
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AB blood. A & B alleles are codominant‚ so if both A and B are present they will be expressed together. O alleles have neither A or B antigens. O and O will result in O or O‚ an O or B will result in an O or B. A and A can result in A or O (same for B and O). AB and AB can result in A‚ B‚ or AB. They inherit it depending on the combo of their parent’s blood type. The Rh blood group is also a human blood system group. It is independently inherited from the ABO blood group alleles. Rh has Rh+ and Rh-
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one golden bodied fly. We would expect to see the same outcome for the F2 Generation. The trait for body color is autosomal recessive in the golden bodied drosophila. The allele for the tan bodyis dominant over the recessive golden body‚ because tan bodies are standard in flies where as golden bodies are a recessive mutant allele. After collecting data from the entire class and performing a chi square analysis
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Gregor Mendel believed that genes followed “natural laws” and could be expressed in simple mathematical terms (Brooker 19). He was mostly intrigued by how genes varied as they pass from generation to generation (Brooker 18). Mendel decided to test his mathematical hypothesis using pea plants since they came “in several varieties‚ which varied in height and in the appearance of their flowers‚ seeds‚ and pods‚” (Brooker 19). He also decided to use self-fertilization and cross-fertilization to see which
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Statistics: • Science of gathering‚ analyzing‚ interpreting‚ and presenting data • Measurement taken on a sample • Type of distribution being used to analyze data Descriptive statistics: Using data gathered on a group to describe or reach conclusions about that same group only. Descriptive statistics are the tabular‚ graphical‚ and numerical methods used to summarize data. Collect‚ organize‚ summarize‚ display‚ analyze Eg: According to Consumer Reports‚ General Electric washing machine
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Maintaining a Balance Enzymes 1.1 Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are biological catalysts‚ meaning they are organic and speed up a chemical reaction without taking part in it. This means it has a vital role in metabolism where it ensures that the chemical reactions that make up metabolism can function fast enough to sustain life by lowering activation energy. Metabolism
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chromosomes which decide if we are a boy or girl phenotypically‚ XX means girl whereas XY means boy. Alleles are basically alternatives to each gene‚ there can be recessive or dominant alleles. There are 6 pattern of inheritances‚but i’m only going to talk about 5 because Mr.O said there would be no polygenetics so there is: Complete Dominance‚ Incomplete Dominance‚ Codominance‚ Multiple Alleles and Sex Linked Traits. Complete Dominance is when there is one allele and two possibilities you either get the phenotype or you don’t
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animation‚ fill in the following data table to help you generate your hypothesis‚ outcomes‚ and analysis: Punnett Square Complete the following (Audesirk‚ Audesirk‚ & Byers‚ 2008): 1. Assign letters to the different alleles; use uppercase for dominant and lowercase for recessive. 2. Determine all of the types of genetically different gametes that can be produced by the male and female parents. 3. Draw the Punnett Square‚ with each row and column labeled with one of
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monohybrid and dihybrid crosses. Two crosses were performed. Cross one consisted of heterozygous alleles crossed with another set of heterozygous alleles. Cross number two consisted of a set of homozygous dominant and homozygous recessive alleles. Completing the monohybrid and dihybrid crosses using Mendel’s Punnett Square system allows the results for the possible gametes to be viewed by the different alleles being crossed. Methods and Materials Blue Beads Green Beads Red Beads Yellow beads (2) 100
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Mark scheme June 2002 GCE Biology B Unit BYB4 Copyright © 2002 AQA and its licensors. All rights reserved. The Assessment and Qualifications Alliance (AQA) is a company limited by guarantee registered in England and Wales 3644723 and a registered charity number 1073334 Registered address: Addleshaw Booth & Co.‚ Sovereign House‚ PO Box 8‚ Sovereign Street‚ Leeds LS1 1HQ Kathleen Tattersall: Director General klm SECTION A Question 1 (a) GCE: Biology B – BYB4 June 2002 X = grana/lamellae/thylakoid
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