Drosophila embryogenesis

2014)) (5). Drosophila is a commonly used ‘model organism’ in animal biology and genetics, partially because they have a short life cycle (6) and a newly fertilised egg can develop in around ten days (Figure 1). In their study, published in Nature in 1980, Nüsslein-Volhard

requires the artificial induction of embryogenic competence in cells which are not naturally embryogenic, the influence of the above factors will be more in somatic embryogenesis process thereby increasing the possibility of generating more somaclonal variants (Dodeman et al. 1997). An alternative method is the zygotic embryogenesis technique where, the above effects will be negligible because the explant zygote is intrinsically embryogenic. In short, the zygote shows some structural and functional

identified in Drosophila (Bray et al., 1989; Bray and Kafatos, 1991; Dynlacht et al., 1989; Johnson et al., 1989) and since then, they were also found in animals as diverse as nematodes and humans. Grh proteins have not yet been detected in unicellular organisms. Phylogenetic analysis subdivides this gene family into two main classes, the Grh-like sub-family and the CP2 sub-family, depending whether the family members are more related to the Drosophila grh, or to another Drosophila gene, CP2 (Ting

Mate Choice and Species Recognition amongst D. simulans and D. mauritiana Brittany Wordekemper February 23, 2016 Ecology and Evolution Lab Emily Hudson Abstract Sexual selection is a kind of natural selection that happened to come about through a specific preference by one sex for definite characteristics in individuals of the opposite sex. When it comes to choosing a mate, mate choice is very important for individuals to avoid mating with the wrong species but

HOW EFFECTIVE IS AYURVEDIC MEDICINE IN THE TREATMENT OF PARKINSON’S DISEASE? NAME : NORASIKIN BINTI BERAHIM REGISTERATION NO. : 201616788 DATE : 26/10/2016 SECTION WORD COUNT INTRODUCTION 438 DISCUSSION 1221 CONCLUSION 220 TOTAL “This report is entirely my own work. Any information taken from others have been declared and referenced in the text.” Signature : ____________________ Date : ____________________ ABSTRACT Ayurveda, an ancient system originated from India use several

ABSTRACT Evaluation of Monitoring for Drosophila suzukii (Diptera: Drosophilidae) in the Field and Laboratory in South Dakota and Infestation of Drosophila suzukii in Raspberry Crops Bennur Agbaba 2016-2017 The spotted wing Drosophila suzukii (Diptera: Drosophilidae) is an attacking pest of berries crops. Unlike most other Drosophila, this insect can oviposit into ripe and ripening berries, so that they make them unmarketable. D. suzukii is spreading quickly throughout the continental US

Cassava (Manihot esculenta) is a tuberous root crop that serves as a source of carbohydrate for more than 800 million people worldwide and its cultivation is estimated to cover more than 18.9 million hectors (FAO, 2011). It is a vital source of food and income to resource poor farmers (especially women) in the tropics and staple food crop for nearly 200 million people in the sub-Saharan Africa (Liu et al., 2011; Nyaboga et al., 2013). In Tanzania, cassava ranks only second to maize and third to rice

Abstract Genetic variation in Drosophila melanogaster and many other species is dependent upon recombination events during Meiosis I. In previous experiments, age of females, behavioral stress, and fluctuations in temperature has had an effect on the frequency of recombination. The purpose of this experiment was to observe the effects of changing incubation temperature on recombination frequency by conducting crosses in different thermal conditions of 25°C, the control, and 30°C, the experimental

Introduction: The fruit fly, Drosophila melanogaster, has key characteristics that include a short life cycle of about 30 days at 29 °C, the production of large numbers of offspring, and minimal lab maintenance that make it an excellent model organism to conduct biological experiments [1]. D. melanogaster is a complex multi-cellular organism that shares closely related behavioral and developmental features, along with a highly conserved genome, with humans which allows researchers to study parallel

Purpose The purpose of this experiment is to determine whether the fruit flies were dominant/recessive or linked/non-linked. The traits I chose for this activity was the fruit fly with vestigial wings and purple eyes, the other fruit fly I chose was a normal fly, also called wild type. While writing out my plan for this activity I thought it would be interesting to test a female mutant and the wild type male, the ratios I came up for this experiment was 2:2 and the mutant allele being recessive