"Monohybrid and dihybrid" Essays and Research Papers

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    Chapter 13: Meiosis and Sexual Life Cycles 1) Genes are the units of heredity‚ and are made up of segments of DNA. 2) In asexual reproduction‚ one parent produces genetically identical offspring my mitosis. In sexual reproduction‚ two parents give rise to offspring that have unique combinations of genes inherited from the two parents. 3) Humans have somatic cells‚ which are any cell other than a gamete‚ have 23 pairs of chromosomes. A karyotype is an ordered display of the paired of chromosomes

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    Fly Lab Instructions

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    the beginning of class before the quiz. Late assignments WILL NOT be accepted. DON’T FORGET: Fly lab/epistasis assignment on pgs. 41-42 in lab manual is also due at the beginning of lab. Assignment 1: Getting to Know FlyLab: Performing MonohybridDihybrid‚ and Trihybrid Crosses 1.c. Based on what you know about the principles of Mendelian genetics‚ predict the phenotypic ratio that you would expect to see for the F1 offspring of this cross and describe the phenotype of each fly. 1.d. Are the

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    Fruit Fly Lab Report

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    The Dumpy Sepia X Wild Type Dihybrid cross using Drosophila Melanogaster. Abstract An experiment was performed on the fruit fly (Drosophila Melanogaster) in order to investigate Gregor Mendel’s postulates and determine if his laws were in fact correct. This was done by crossing Virgin Wild type females with Dumpy sepia males‚ and then inter-crossing their progeny (the first filial generation) in order to produce the second filial generation which was then studied. The results of this were designed

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    (b) heterozygous (c) a monohybrid (d) a dihybrid 2. At the end of meiosis‚ how many haploid cells have been formed from the original cell? (a) one (b) two (c) three (d) four 3. When Mendel transferred pollen from one pea plant to another‚ he was ___ the plants. (a) self pollinating (b) cross pollinating (c) self fertilizing (d) cross fertilizing 4. A short pea plant is (a) homozygous recessive (b) homozygous dominant (c) heterozygous (d) a dihybrid 5. Which describes a dominant

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    ¬¬¬Biology Exam 4 Energy III – Cellular Respiration (Krebs Cycle and Electron Transport Chain) A. The Krebs Cycle a. Energy i. The net gain of 2 ATP and 2 NADH represents an effective transfer of 20 kcal of energy to ATP (about 10 kcal each) about 80 kcal of energy to NADH (about 40 kcal each)‚ for a total of about 100 kcal ii. Complete oxidation of glucose results in the release of 684 kcal of energy‚ significant energy still remaining in pyruvate b. Eukaryotes i. Pyruvate is transported

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    in offspring. 2. Define the following terms: true-breeding‚ hybridization‚ monohybrid cross‚ P generation‚ F1 generation‚ and F2 generation. True breeding: When true-breeding plants self-pollinate‚ all their offspring are of the same variety. For example‚ purple flowers give rise to plants with purple flowers. Hybridization: The crossing of two true-breeding varieties is hybridization. Monohybrid cross: A monohybrid cross is a genetic cross using a single trait with two alleles. P generation:

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    11. What is the structure of a DNA molecule? a. What forms the backbone of the DNA molecule? b. What kind of bonds occur between the 3’ OH on the 3’ C of one nucleotide and the phosphate of the next? b. What forms the “steps of the ladder”? c. What kind of bonds hold the nitrogen bases together? d. What is meant by anti-parallel strands? 12. What is Chargaff’s rule (what binds with what?) 13. How does DNA fold into a chromosome? (the 6 steps) 14. What is a nucleosome? 15. What are

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    Lab 9 Elizabeth Stassenko 11/25/14 Plant Genetics Purpose: To predict and to identify the genotype of offspring using a Punett Square Exercise 1: Observing a Monohybrid Cross Hypothesis using Punett square: Gametes X x X XX Xx x Xx xx Data: Questions: A. What are the predicted ratios of the phenotypes in the plants? I predicted ¾ will germinate as green and ¼ will germinate as yellow B. What was the total number of seeds that germinated? 80 C.

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    Punnet Square Lab

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    http://www.mhhe.com/biosci/genbio/virtual_labs/BL_05/BL_05.html Upon completion of the Punnett Squares Virtual Lab‚ please answer the following questions thoroughly using complete sentences and proper grammar and spelling. 1. For one of the monohybrid crosses you performed in this Investigation‚ describe how to use the phenotype ratios to determine the percentage of offspring displaying each trait. Well for one once you have the phenotypes all done on your Punnet Square then you go through and

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    Ap Bio Lab Fruit Flies

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    AP Lab Seven Genetics of Organisms Dan Torres AP Biology Block 1 January 24‚ 2011 Introduction & Background Fruit flies have made a huge contribution towards knowledge about genetics‚ but for most people‚ they are just annoying insects that are attracted to their fruit. Their scientific name is Drosophila melanogaster‚ and to scientists‚ they have been a key to understand many principles of heredity including sex linked inheritance‚ epistasis‚ multiple alleles‚ and gene mapping. Fruit

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