What is approximate time (in days) of Drosophila\'s life cycle from egg to adult
ID: 102200 • Letter: W
Question
What is approximate time (in days) of Drosophila's life cycle from egg to adult? A. 2 B. 5 C. 10 D. 20 At what temperature (in Celsius), flies grow the best? A. 0 B. 21 C. 39 D. 98.6 Identify the correct order of fly life cycle: A. Egg rightarrow III Instar larva rightarrow II Instar larva rightarrow I Instar larva rightarrow Pupa rightarrow Adult B. Egg rightarrow II Instar larva rightarrow Adult C. Egg rightarrow Pupa rightarrow III Instar larva rightarrow II Instar larva rightarrow I Instar larva rightarrow Adult D. Egg rightarrow I Instar larva rightarrow II Instar larva rightarrow III Instar larva rightarrow Pupa rightarrow Adult Fly-nap is used to: A. Induce female flies to secrete pheromones (sex-hormones) B. Anesthetize both males & females flies C. Anesthetize virgin flies only D. Supplement food Where is black pigment located in flies? A. Caudal (END) extremity in females B. Caudal (END) extremity in males C. Upper (ANTERIOR) extremity in females D. Upper (ANTERIOR) extremity in males How long (in hours) a female fly that emerged from pupa still remains virgin? A. 1-2 B. 8-12 C. 20-24 D. 1-2 days You crossed female apterous (an autosomal recessive disorder) flies (ww) with wild type (normal full wing) male (WW) flies. Please answer following questions based on this problem. Which of the following progeny phenotype would be produced in F 1 generation? A. All wild (normal wing) type B. All apterous C. Half-half each D. Each fly is half wild type and half apterous characters What would be the possible genotype of F 1 offspring (in the question above)? A. Ww B. WW C. ww D. All of the above If they (F 1 offspring) are self- crossed for F 2 generation, what type of fly phenotype ratio do you expect in F2 generation offspring? A. All wild type (100%) B. All apterous (100%) C 3 (normal wings): 1 (apterous wings)Explanation / Answer
1 ans-C
Fruit flies or drosohila's life cycle takes an average of between 8 and 10 days which involve in 4 stage.
2 ans-For the normal life cycle temperature of approximate 21°C to 22°C .Their growth varies with temperature, easiest way to grow flies is at room temperature
3 ans-D-Egg --- First instar---- second instar---third instar larva----pupa---adult
Day 0: Female lays eggs, Day-1 egg hetch, Day-2,3 and 5 First,Second instar,Third and final instar, Day 7-prepupa and Pupariation (pupal formation).
4 ans-B
Fly nap (triethylamine) is used to anethesize Drosophila both males and females it takes 50 minutes to hours.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.