1
BIOL 3001 MIDTERM EXAM QUESTIONS WITH
COMPLETE ANSWERS/NEWEST UPDATE
What are the learning objectives for Lab 1? - (answers)- 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
modes of inheritance - (answers)manner in which a genetic trait or disorder is
passed from one generation to the next
What family, order, and class is Drosophila melanogaster classified in? -
(answers)Family: Drosophilidae
Order: Diptera (which also includes flies, mosquitoes and midges)
Class: Insecta (insects)
What does Drosophila (genus name) mean? - (answers)dew-lover
What does melanogaster mean? - (answers)black abdomen
What other names do fruit flies have? - (answers)red-eyed pomace fly, vinegar fly
and wine fly, all relating to this species' attraction to fermenting fruits
, 2
How did fruit flies get their name? - (answers)because they are collected by
placing a bottle containing over-ripe fruit (often bananas) outside
wild-type - (answers)phenotype most commonly captured in the wild
How many chromosomes do fruit flies have? - (answers)4 pairs (2n=8)
What chromosome in fruit flies determines sex? - (answers)chromosome I
lygaues mode - (answers)presence of different sex chromosomes
T or F: Sex-determination in fruit flies follows the lygaeus mode. - (answers)true
T or F: In fruit flies, females are XX and males are XY. - (answers)true
T or F: Sex is dependent on the actual number of X chromosomes in fruit flies. -
(answers)true
How can the genders be distinguished in fruit flies? - (answers)- Females are
larger than males.
- Females have a "knob" (ovipositor) on the tip of the abdomen.
- Males have a solid abdomen while females have stripes.
BIOL 3001 MIDTERM EXAM QUESTIONS WITH
COMPLETE ANSWERS/NEWEST UPDATE
What are the learning objectives for Lab 1? - (answers)- 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
modes of inheritance - (answers)manner in which a genetic trait or disorder is
passed from one generation to the next
What family, order, and class is Drosophila melanogaster classified in? -
(answers)Family: Drosophilidae
Order: Diptera (which also includes flies, mosquitoes and midges)
Class: Insecta (insects)
What does Drosophila (genus name) mean? - (answers)dew-lover
What does melanogaster mean? - (answers)black abdomen
What other names do fruit flies have? - (answers)red-eyed pomace fly, vinegar fly
and wine fly, all relating to this species' attraction to fermenting fruits
, 2
How did fruit flies get their name? - (answers)because they are collected by
placing a bottle containing over-ripe fruit (often bananas) outside
wild-type - (answers)phenotype most commonly captured in the wild
How many chromosomes do fruit flies have? - (answers)4 pairs (2n=8)
What chromosome in fruit flies determines sex? - (answers)chromosome I
lygaues mode - (answers)presence of different sex chromosomes
T or F: Sex-determination in fruit flies follows the lygaeus mode. - (answers)true
T or F: In fruit flies, females are XX and males are XY. - (answers)true
T or F: Sex is dependent on the actual number of X chromosomes in fruit flies. -
(answers)true
How can the genders be distinguished in fruit flies? - (answers)- Females are
larger than males.
- Females have a "knob" (ovipositor) on the tip of the abdomen.
- Males have a solid abdomen while females have stripes.
