MEDGAR EVERS COLLEGE-CUNY 8. Which of the following statement is true? A fruit f
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MEDGAR EVERS COLLEGE-CUNY 8. Which of the following statement is true? A fruit fly generation could be produced in two years Thomas Hunt Morgan first generated the A. IOLOGY DEPARTMENT OL- GENETICS LABORATORY TEST-II SUMMER- JULYY 2018(Total points: 40) B. specific chromosome in the early 1900s C. D. Morgan used red eye as the mutant allele Morgan's theory ?pported the law of What are the diffierent stages of Drosophila development A Egg larval, pupal, adult R Egg cocoon, fetus, adult C Egg adult, neonate, adult D. All of the above Which is the location of Mendel's heritable factors? A. Chromosome B. Mitochondria C. Endoplasmic reticulum D. Cytoplasm 9. 2 Which of the following is a fieature of larval 10. Traits alternative to the wild type is known as stage? A use black mouth hooks to eat B Eggs are oval shaped, and have two. A. Dominant phenotype B. Recessive phenotype C. Mutant phenotype D. Wild type ilaments at one end D. Live a month or so and then die Which two organisms are used for demonstrating classical Mendelian's law? A. Drosophila and maize B. Drosophila and peas C. Maize and peas D. Drosophila and polytene chromosomes I1. Which of the following is are the reason for using Drosophila in experiments? A Short life cycle B. Inexpensive C. Clear genetic background D. All of the above 4 Drosophila melanogaster is used to study the 12. Which of the following is true for Drosophila? A. following biological process; A Embryonic development 8. Gastrointestinal diseases C. Bone marrow disorder D. All of the above They are put to sleep by using chloroform B. They are hatched at 25 degree Fahrenheit C. They pass through a complete D. They can grow without nutrient 5. Alternating dark and light bands can be seen on 13. the entire rear portion of the A. Fetal pig B. Experimental frog C. Female Drosophila melanogaster D. Cray fish After putting etherizer, how long it takes to cease movement of the Drosophila? A. 30 seconds B. 3-5 minutes C. 30 minutes D. None of the above 6. What is the entire time period of complete "life cycle" for Drosophila? 14. Which of the following is the best criteria to distinguish male and female Drosophila? A. Male flies exhibit dark colored external 1 day B. 10 days C. 100 days D. 1000 days genitalia on the tip of abdomen B. Only male Drosophila are red eyed C. Females are smaller in size D. All of the above Which of the following is the list of characteristics used to distinguish male and female drosophila? 15. Which of the following is the example of alleles used in Mendel's experiment? A. A. Size, shape, color B. Dimorphism C Chromosomal abundance D. None of the above B. C. D. Yellow vs. Green or Wrinkled vs. Smooth White vs. purple or Wrinkled vs. Smooth Yellow vs. Green or short vs. long White vs, purple or short vs. longExplanation / Answer
answer 1
egg, larval, pupal, adult
because this is a Tife cycle of Drosophila melanogaster which comprises these four successive stages,
Answer 2
use black mouth hooks to eat in larval stage
because Larvae use their cephalopharyngeal sclerites (mouth hooks) to eats almost continuously
Answer 3
All of the above
Because all the features above suits for drosophila having life cycle which only takes about 12 days to complete at room temperature & easily available
Answer 4
All of the above
Because the study of this model organism for genetic investigations for various disorders in human & other organism
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