Determine the pattern of inheritance of mutant traits in Drosophila melanogaster (fruit flies) The pattern of inheritance will either show... incomplete.

Slides:



Advertisements
Similar presentations
CHAPTER 15.
Advertisements

Fruit Fly Genetics Drosophila melanogaster
Virtual Fly Lab AP Biology
Fruit Fly Genetics.
Lab Hours / Procedure You are responsible for your flies! Before or after school is your time to work –or- lunch on Monday and Friday Respect each other.
Getting to know Drosophila melanogaster RS: Maribel Alvarez Nelida Rojas, Santa Ana High School _Alvarez/Welcome.html.
Drosophila Jeopardy Developmental Stages HeredityMutationsExperiments General Characteristics
Lab 7 – Heredity Is there a fly in here?
*Lab manual protocol will not be used
Female and male (wild-type) Sex comb on male No sex comb on female Dark pigmented spot on rounded abdomen of male; male is also usually smaller than female.
Sex-Linkage (X-Linked Traits)
The Chromosomal Basis of Inheritance Connecting Mendel's Work to Chromosomes.
POST MENDELIAN GENETICS. ANNOUNCEMENTS Genetics Problems (set #2) will be posted Fri.
POST MENDELIAN GENETICS
Key Terms- P1 + F1 Generations. Boy or a Girl? If you was two have a child, what would be the likelihood of them being a boy or girl? How do you know.
The Genetics of the Fruit Fly Drosophila melanogaster Pick Up Handout! A.P. Biology Mr. Knowles.
Even primitive organisms display principles of genetics.
PATTERNS OF INHERITANCE. What type of inheritance pattern is represented?
Chromosomal Basis of Inheritance Featuring fruit fly: Drosophila Melanogaster.
Sex-linked Traits. Sex Determination  Sex chromosomes – determines the sex of an individual YY XX  Males have X and Y  Two kinds of gametes  Female.
Dominant AlleleRecessive AlleleR = red eyesr = white eyes A = curly wingsa = straight wings B= long, thin bristlesb=short, forked bristles Y = tan bodyy.
In your lab notebook, answer these questions in complete sentences. What is a genotype? What is a phenotype?
The Chromosomal Basis of Inheritance Chapter 15. The Chromosomal Theory of Inheritance chromosomes and genes are present as pairs in diploid cells homologous.
Getting to know Drosophila melanogaster RS: Maribel Alvarez Nelida Rojas, Santa Ana High School _Alvarez/Welcome.html.
1/14/15 Objective: How do sex-linked genes produce different inheritance patterns in males and females? Do Now: Take out assigned homework.
The Chromosome Theory of Inheritance Chpt. 15 Chpt. 15.
Chromosomes & Inheritance The chromosomal basis for inheritance was described in 1902 independently by a group of scientists. It basically states that.
Chromosomal Basis of Inheritance Chapter 15. Slide 2 of 36 Mendel & Chromosomes  Today we know that Mendel’s “hereditary factors” are located on chromosomes.
SEX-LINKED TRAITS Solving pedigrees for traits with genes located on the X and Y chromosome.
Human Sex Chromosomes & linked Genes
Welcome What is a dihybrid cross?. Agenda Quiz Sex Linked Traits Mutations.
Drosophila melanogaster Life cycle and introduction to genetics.
Sex-linked Traits Ch
Lecture #30 Introduction to Sex Linkage Honors Biology Ms. Gaynor.
Chromosomal Patterns of Inheritance The Next Step – Relating Mendel to Genes.
Fruit Fly Basics Drosophila melanogaster. Wild Type Phenotype Red eyes Tan Body Black Rings on abdomen Normal Wings.
Genetics: Sex-Linked Inheritance
Drosophila Identification of various phenotypes.
Drosophila melanogaster OR The Fruit fly labs
1 Fly Project Begins Objectives: Organize groups - 4 members maximum Start notebooks - Describe traits and strains, etc. Understand traits and obtain needed.
D. melanogaster exhibits complete metamorphism, meaning the life cycle includes an: egg, larval (worm-like) form, pupa and finally emergence (eclosure)
Genetics - Introduction.  Genetics is the study of inheritance.  In terms of agriculture, genetics is everything.  An understanding of genetics is.
Linkage Groups & Chromosome Maps
Do Now 2.3 Objective: Be able to describe some basic characteristics of Drosophila, including their chromosome number and types Task: Be ready to turn.
Mendelian Genetics Sample word problems. 1. In labrador retrievers, black fur (B) is dominant to yellow fur (b) Predict the offspring from a cross between.
Other Patterns of Inheritance 5.5. Heredity: Other Patterns of Inheritance 5.5  There are many different __________________. 1._______________ The dominant.
©2000 Timothy G. Standish Matthew 18:11 11For the Son of man is come to save that which was lost.
Drosophila. Why Fruit Flies? Fruit Flies (Drosophila melanogaster) have been used to study genetics for the past 90 years.Drosophila melanogaster Why?
 Genes on the X chromosome determine X-linked characteristics; those on the Y chromosome determine Y-linked characteristics.  Because the Y chromosome.
Drosophila Identification of various phenotypes.
FRUIT FLY GENETICS. DO NOW TUESDAY Let’s see what you remember. Give the genetics term that describes each of the following: a) AA b) Aa c) Aa d) Red.
AP Biology The Chromosomal Basis of Inheritance “Linked Genes”
Female and male (wild-type)
Virtual Fly Lab AP Biology
Sexing Fruit Flies
Getting to know Drosophila melanogaster
Drosophila melanogaster
Fruit Fly Genetics Drosophila melanogaster
Do Now 1.29 FLYDAY 1 Objective: Be able to describe some basic characteristics of Drosophila, including their chromosome number and types Task: Take out.
Matthew 18:11 11 For the Son of man is come to save that which was lost.
Virtual Fly Lab AP Biology
Drosophila Identification of various phenotypes.
Drosophila melanogaster
Drosophila Identification of various phenotypes.
CHAPTER 12 SEX-LINKED TRAITS
The Chromosomal Basis of Inheritance
Genetics: Sex-Linked Inheritance
Fly culture 3주차.
Unit C: Cell Division, Genetics and Molecular Biology
Drosophila Genetics Inheritance of Body Color B. Three Point Testcross.
Presentation transcript:

Determine the pattern of inheritance of mutant traits in Drosophila melanogaster (fruit flies) The pattern of inheritance will either show... incomplete dominance or reveal the dominant and recesssive strains sex linkage or autosomal inheritence

Easy to Culture New generation every weeks Produce numerous offspring Many genes to study & experiment Low rate of mutations Takes up little space

adult female Egg Larva Pupa Adult adult male

Male Sex Combs Sex combs on front legs Females large pointed abdomen light posterior generally larger no sex combs Males smaller, rounder abdomen dark posterior generally smaller sex combs Comparing Abdomens FemaleMale

X Wild (normal wings) Apterous (wingless) X Wild (normal wings) Vestigial wings X Wild (red eyes) White eyes