BIOL 3001 MIDTERM TEST QUESTIONS WITH VERIFIED ANSWERS

Page | 1



BIOL 3001 MIDTERM EXAM
QUESTIONS WITH COMPLETE
ANSWERS/NEWEST UPDATE✓
Question: What are the learning objectives for Lab 1?
Answer:


✓ - Understand the basic attributes of Drosophila melanogaster


✓ - Conduct crosses and collect progeny data using the fly portal


✓ - Design and diagram monohybrid crosses


✓ - Complete chi-squared analyses to compare observed versus expected
traits


✓ - Better understand the effects of different progeny number (sample
size) on expected ratios


Question: modes of inheritance
Answer:


✓ manner in which a genetic trait or disorder is passed from one
generation to the next


Question: What family, order, and class is Drosophila melanogaster classified
in?
Answer:

, Page | 2

✓ Family: Drosophilidae


✓ Order: Diptera (which also includes flies, mosquitoes and midges)


✓ Class: Insecta (insects)


Question: What does Drosophila (genus name) mean?
Answer:


✓ dew-lover


Question: What does melanogaster mean?
Answer:


✓ black abdomen


Question: What other names do fruit flies have?
Answer:


✓ red-eyed pomace fly, vinegar fly and wine fly, all relating to this
species' attraction to fermenting fruits


Question: How did fruit flies get their name?
Answer:


✓ because they are collected by placing a bottle containing over-ripe
fruit (often bananas) outside


Question: wild-type

, Page | 3

Answer:


✓ phenotype most commonly captured in the wild


Question: How many chromosomes do fruit flies have?
Answer:


✓ 4 pairs (2n=8)


Question: What chromosome in fruit flies determines sex?
Answer:


✓ chromosome I


Question: lygaues mode
Answer:


✓ presence of different sex chromosomes


Question: T or F: Sex-determination in fruit flies follows the lygaeus mode.
Answer:


✓ true


Question: T or F: In fruit flies, females are XX and males are XY.
Answer:


✓ true