Bio 311d - Study guides, Class notes & Summaries

Bio 311D Exam 2 Dr English To have no change in allele frequencies, you'll need... (H-W assumptions) - 1. No mutations 2. Random mating 3. no heritable advantages 4. enormous population 5. No incoming/outgoing individuals Evolution - change is proportion of alleles in a population Descent with modification - 1. organisms look different today 2. organisms look different than their predecessors 3. that change in appearance is -heritable -adaptive Natural selection means - ...

This is a comprehensive and detailed review note on exam 1 for Bio 311d. Quality stuff!! U'll need it for effective study!!

all about plant growth and reproduction

BIO 311D - Exam 2 Review. 1. Populations Population definition: a group of interbreeding individuals -group of individuals of the same species that lives and reproduces from year to year in a particular location (lecture) Population size is dependent on growth factors ● Exponential growth ○ Resources are plentiful ○ Influenced by birth rate and death rate ○ Proportional to the size of the population

BIO 311D - Exam 3 Review. VocabBIO 311D - Exam 3 Review Sections 32.1 and 34.5 Being an Animal; Being Terrestrial • Tissues: any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products. • Cleavage: succession of mitotic cell divisions without cell growth between divisions • Blastula: hollow ball • Gastrulation: layers of embryonic tissues that will develop into adult body parts are produced and results in a gastr...

BIO 311D - FINAL EXAM REVIEW 2. MEIOSIS Prophase I – 4DNA, 2n - Homologous chromosomes here have already been replicated - Homologous chromosomes line up along their lengths and are connected by synaptonemal complex (protein complex) o Synapsis - Homologous chromosomes = a duplicated pair from mom similar in length and gene position to a duplicated pair from dad o They pair up during meiosis I

BIO 311D - EXAM 1 REVIEW. QUESTIONS 1. Compare and contrast mitosis and meiosis in terms of cell activities and chromosome number in daughter cells. a. Mitosis: 2n, two daughter cells b. Meiosis: n, four daughter cells 2. Describe how genetic variation among individuals is generated by meiotic independent assortment and recombination. Be able to label and follow alleles on chromosomes. a. Independent assortment: each pair of alleles separate from each other during gamete formation ...

BIO 311D - Exam 2 Review. Speciation: 1. Biological Series Concept - a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring, but do not produce viable, fertile offspring with members of other such groups → reproductive isolation 2. Speciation - species arise when individuals in a population become isolated from one another 2.1. Genetic drift 2.2. Natural selection 2.3. Recombination

BIO 311D - Final Exam Study Guide. Handout 16 – competing plant & animal defense systems Body structures for anti-predator defenses: Plants – thorns, sticky microscopic hairs on leaves irritating to insects, toxic oils (poison ivy) Animals – structures (hard shell), behavior, coloration (camouflage or warning coloration such as coral snakes or bees = protective or warning coloration & mimics that are harmless but resemble a harmful animal) How long can mimics continue their char...