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... Phases of Meiosis Meiosis is the process that separates homologous pairs of chromosomes in a diploid cell, forming a haploid gamete. The phases are as follows: Meiosis I, which is preceded by a replication of chromosomes. Its stages are  Prophase I: Each replicated chromosome pairs with its corresp ...
Document
Document

... Genes may show sequence similarity that is limited to a certain region—some parts of a protein will be similar and other parts will be different. Genes may share similar motifs, meaning that they encode regions of similar amino acid sequence that aren't located right next to each other in the linear ...
Study Guide
Study Guide

... necessary. 1. In the first box below, show what your cell would look like at the end of meiosis I. Remember, the result will be two cells that have one duplicated chromosome from each homologous pair. 2. In the second box, show what your cell would look like at the end of meiosis II. Remember, the r ...
What is the genomic location for the rice blast resistance gene Pi-ta
What is the genomic location for the rice blast resistance gene Pi-ta

... genome and compare its position to that of other mapped resistance genes. The rice disease resistance gene Pi-ta has been genetically mapped to chromosome 12 by Rybka et al. (1997). It has also been sequenced by Bryan et al. (1997). We will use sequence information to confirm the location of Pi-ta. ...
Background concepts for sequence analysis Ana, homo
Background concepts for sequence analysis Ana, homo

... "  C <-[orthologous]-> B1 "  C <-[orthologous]-> B2 "  B1 <-[paralogous]-> B2 The commonly used concept of clusters of orthologs is thus an ...
Chapter 7 - HCC Learning Web
Chapter 7 - HCC Learning Web

... Colony of revertant (his+) Salmonella ...
breeding an alpaca industry
breeding an alpaca industry

... Why is it a beginning? Because then we can start to use the results to influence genetic selection with some certainty . How long will it take? Many years, possibly between 5 and 10. ...
Transposable Elements
Transposable Elements

... Somatic Excision of Ds from C ...
pGLO
pGLO

... protein which causes them to glow a brilliant green color under ultraviolet light. In this activity, you will learn about the process of moving genes from one organism to another with the aid of a plasmid. In addition to one large chromosome, bacteria naturally contain one or more small circular pie ...
nov6_part1_Basics of molecular genetics
nov6_part1_Basics of molecular genetics

... • Recombination (to a certain extent) is also possible during mitosis • Site-specific recombination is typical for viruses when they are integrating into the host cells • Transpositional recombination (caused by transposons) does not need sequence homology --- Introductory seminar on the use of mole ...
Document
Document

... Sexual reproduction  Fusion of two gametes to produce a single zygote.  Introduces greater genetic variation, allows genetic recombination.  With exception of self-fertilizing organisms (e.g. some plants), zygote has gametes from two different parents. ...
1 - western undergrad. by the students, for the students.
1 - western undergrad. by the students, for the students.

... billion base pairs. Through a novel experimental technique she is able to recover a stretch of DNA 5,432 nucleotides long. How much information (in bits) was she was able to recover from the long extinct mammoth? A. B. C. D. E. ...
Document
Document

... The term cloning describes a number of processes that can be used to produce genetically identical copies of a biological entity. The copied material, which has the same genetic makeup as the original, is referred to as a clone. ...
presentation - Genome-to-Genome Distance Calculator
presentation - Genome-to-Genome Distance Calculator

... standardization  required ...
C1. Epigenetic refers to the idea that a genetic phenomenon seems
C1. Epigenetic refers to the idea that a genetic phenomenon seems

... not transmitted via the gametes in the same way for both sexes. For maternal inheritance, the reciprocal crosses would show that the gene is always inherited from the mother. C27. Extranuclear inheritance does not always occur via the female gamete. Sometimes it occurs via the male gamete. Even in s ...
Document
Document

... not transmitted via the gametes in the same way for both sexes. For maternal inheritance, the reciprocal crosses would show that the gene is always inherited from the mother. C27. Extranuclear inheritance does not always occur via the female gamete. Sometimes it occurs via the male gamete. Even in s ...
Chapter 13 – Genetic Mapping of Mendelian Characters
Chapter 13 – Genetic Mapping of Mendelian Characters

... • Controversy! Science published Celera’s sequence without requiring deposition to GenBank • Celera provides full access, with a catch… ...
Genes are `coded instructions` for making proteins and that DNA is
Genes are `coded instructions` for making proteins and that DNA is

... Genes are ‘coded instructions’ for making proteins and that DNA is the chemical which stores the coded instructions A gene is a code for one protein. When the cell requires a type of protein a copy of the particular gene is taken. mRNA (messenger RNA) is the name of the “photocopy” and it consists ...
Biology 155 Practice Exam 3 Name 1. Crossing
Biology 155 Practice Exam 3 Name 1. Crossing

... 28. If you were to allow a culture of bacteria to replicate for many generations in a medium containing heavy nitrogen (15N) and then transferred a sample of your culture to a medium containing light nitrogen (14N) and allowed the cells to replicate their DNA exactly 2 times, what proportion of the ...
Sample pages 2 PDF
Sample pages 2 PDF

... copies of the whole molecule are created. This is what is implied by ‘benefit’ in evolutionary terms. Through being copied in greater frequency if things go right, and in lower frequency if they don’t, costs and benefits now exist that can be counted and compared. ‘Good’ cooperation is cooperation tha ...
1 - Testbankexam
1 - Testbankexam

... recombinational analysis is that two genes that are far apart on a chromosome will have a higher frequency of recombination than two genes that are close together. Thus, if recombination between the gene of interest and a marker is very low, then the gene is likely located near that marker gene. ...
Functional Genomics
Functional Genomics

... - lethal (Nonv) genes tended to be of ancient origin - ‘animal-specific’ genes tended to be non-lethal (Vpep) - almost no ‘worm-specific’ genes were lethal ...
Introduction to Seed Development/Arabidopsis as a model organism
Introduction to Seed Development/Arabidopsis as a model organism

... a. What is the transcription factor gene? b. What other studies have been carried out on this gene? c. What is the name and chromosomal location of the gene? d. What is the size of the gene in base pairs? e. Anatomical features of the gene (exons, introns, UTR) f. What is evidence for correct gene s ...
Phenotype Sequencing - Bioinformatics Research Group
Phenotype Sequencing - Bioinformatics Research Group

... Starting with a parent organism, create many mutants using random mutagenesis (e.g. UV, NTG) ...
chromosomes
chromosomes

... (b) Nucleus and cytoplasm have different chemical properties (c) The cytoplasm is less concentrated than the nucleoplasm (d) The nucleus is in the middle of the cell ...
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Minimal genome

The concept of minimal genome assumes that genomes can be reduced to a bare minimum, given that they contain many non-essential genes of limited or situational importance to the organism. Therefore, if a collection of all the essential genes were put together, a minimum genome could be created artificially in a stable environment. By adding more genes, the creation of an organism of desired properties is possible. The concept of minimal genome arose from the observations that many genes do not appear to be necessary for survival. In order to create a new organism a scientist must determine the minimal set of genes required for metabolism and replication. This can be achieved by experimental and computational analysis of the biochemical pathways needed to carry out basic metabolism and reproduction. A good model for a minimal genome is Mycoplasma genitalium, the organism with the smallest known genome. Most genes that are used by this organism are usually considered essential for survival; based on this concept a minimal set of 256 genes has been proposed.
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