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Drosophila Jeopardy Developmental Stages HeredityMutationsExperiments General Characteristics 100 200 300 400 500.

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Presentation on theme: "Drosophila Jeopardy Developmental Stages HeredityMutationsExperiments General Characteristics 100 200 300 400 500."— Presentation transcript:

1 Drosophila Jeopardy Developmental Stages HeredityMutationsExperiments General Characteristics

2 Developmental Stages for 100 The Drosophila life cycle consists of ___ stages. What is 4 (egg, larva, pupa, adult)? Home

3 Heredity for 100 How many pairs of chromosomes do Drosophila have? What are four pairs? Home

4 Mutations for 100.Flies with this type of mutation require only one copy of the gene to exhibit the mutation in the phenotype. What is a Dominant gene? Home

5 Experiments for 100 The reason a fly media is used in genetic crosses of Drosophila. What is a food/water source? Home

6 General Characteristics for 100 How large is the average specimen of Drosophila? What is 2-4 mm? Home

7 Developmental Stages for 200 The pupal stage consists of ___ days. What is 4 days? Home

8 Heredity for 200 Based on the assumption that a Drosophila has the normal number of autosomes, what would be the sex of a Drosophila having XXY sex chromosomes? What is female? Home

9 Mutations for 200 Flies that exhibit a “normal” phenotype, the one most common in their population, are said to have this type of phenotype. What is a wild-type (gene,allele,phenotype)? Home

10 Experiments for 200 Genetic crosses involving Drosophila mutants is generally associated with this type of genetics. What is forward genetics? Home

11 General Characteristics for 200 What is the common term for an instar larva? What is a caterpillar? Home

12 Developmental Stages for 300 The average generation time of Drosophila is ___ to ___ days. What is 9 to 10? Home

13 Heredity for 300 In Drosophila, eye color follows what pattern or inheritance? What is X-linked inheritance? Home

14 Mutations for 300 Flies with this mutation produce no red pigment in their eye. What is the White-eyed mutation? Home

15 Experiments for 300 Overanesthetizing a fruit fly can cause _____ or _____. What is sterility or death? Home

16 General Characteristics for 300 What was the major discovery by Thomas Hunt Morgan using Drosophila? What is X-linked inheritance? Home

17 Developmental Stages for 400 Name 3 physical differences between male and female Drosophila. What is body size, wing size, genitalia color, presence/absence of sex combs on forelimbs, or abdomen shape (any 3). Home

18 Heredity for 400 Why must virgin females be used in genetic crosses of Drosophila? What is that females are capable of storing sperm from multiple partners and using it to fertilize eggs at a later time, which could skew results. Home

19 Mutations for 400 There is a form of color mutation in flies that is responsible for building up tan- colored pigments in normal fruit flies. A mutation that produces a deficiency in the production of the mentioned gene will produce this abnormal color body. What is Ebony(black) or what is the ebony gene? Home

20 Experiments for 400 The phenotypic and genotypic ratios of resulting progeny from a cross between a white-eyed female Drosophila and a red- eyed male. What is ½ X w+ X w, red-eyed females and ½ X w Y, white-eyed males? Home

21 General Characteristics for 400 What year was the Drosophila genome sequenced? What is 2000? Home

22 DAILY DOUBLE!!!!!! ___ to ___ hours after emergence, female Drosophila can begin to mate. What is 8-12 hours? Home

23 Heredity for 500 In Drosophila, sex is determined by the ratio of _________ to _________. What is the number of X chromosomes to the number of haploid sets of autosomes? Home

24 Mutations for 500 Flies with this recessive mutation have a defect in the second chromosome in their “vestigial gene” that inhibits their ability to fly. What is the short-winged mutation? Home

25 Experiments for 500 Five reasons Drosophila make a good model organism. What is they produce many progeny, they are small in size, have a short generation time, are inexpensive, easy to culture/maintain in a lab, have large chromosomes, have many mutations available, a small genome (any 5)? Home

26 General Characteristics for 500 What percentage of genes do Drosophila have in common with humans? What is about 50%? Home

27 Brenna Carlson John Lee Chelsea Micheals Kelsey Stupica Independent Project – 4/19/11


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