BIOL 3001 MIDTERM EXAM QUESTIONS WITH
COMPLETE ANSWERS NEWEST UPDATE
What |are |the |learning |objectives |for |Lab |1? |- |CORRECT |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
modes |of |inheritance |- |CORRECT |ANSWER✔✔-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? |- |CORRECT |
ANSWER✔✔-Family: |Drosophilidae
Order: |Diptera |(which |also |includes |flies, |mosquitoes |and |midges) |
Class: |Insecta |(insects)
What |does |Drosophila |(genus |name) |mean? |- |CORRECT |ANSWER✔✔-dew-lover
What |does |melanogaster |mean? |- |CORRECT |ANSWER✔✔-black |abdomen
What |other |names |do |fruit |flies |have? |- |CORRECT |ANSWER✔✔-red-eyed |pomace |fly, |vinegar |
fly |and |wine |fly, |all |relating |to |this |species' |attraction |to |fermenting |fruits
How |did |fruit |flies |get |their |name? |- |CORRECT |ANSWER✔✔-because |they |are |collected |by |
placing |a |bottle |containing |over-ripe |fruit |(often |bananas) |outside
, wild-type |- |CORRECT |ANSWER✔✔-phenotype |most |commonly |captured |in |the |wild
How |many |chromosomes |do |fruit |flies |have? |- |CORRECT |ANSWER✔✔-4 |pairs |(2n=8)
What |chromosome |in |fruit |flies |determines |sex? |- |CORRECT |ANSWER✔✔-chromosome |I
lygaues |mode |- |CORRECT |ANSWER✔✔-presence |of |different |sex |chromosomes
T |or |F: |Sex-determination |in |fruit |flies |follows |the |lygaeus |mode. |- |CORRECT |ANSWER✔✔-true
T |or |F: |In |fruit |flies, |females |are |XX |and |males |are |XY. |- |CORRECT |ANSWER✔✔-true
T |or |F: |Sex |is |dependent |on |the |actual |number |of |X |chromosomes |in |fruit |flies. |- |CORRECT |
ANSWER✔✔-true
How |can |the |genders |be |distinguished |in |fruit |flies? |- |CORRECT |ANSWER✔✔-- |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.
standard |F1 |cross |- |CORRECT |ANSWER✔✔-crosses |offspring |from |the |F1 |Generation |to |each |
other
backcross |- |CORRECT |ANSWER✔✔-performed |by |crossing |one |of |the |F1 |progeny |back |to |one |
of |the |original |parents |to |produce |the |F2 |generation
COMPLETE ANSWERS NEWEST UPDATE
What |are |the |learning |objectives |for |Lab |1? |- |CORRECT |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
modes |of |inheritance |- |CORRECT |ANSWER✔✔-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? |- |CORRECT |
ANSWER✔✔-Family: |Drosophilidae
Order: |Diptera |(which |also |includes |flies, |mosquitoes |and |midges) |
Class: |Insecta |(insects)
What |does |Drosophila |(genus |name) |mean? |- |CORRECT |ANSWER✔✔-dew-lover
What |does |melanogaster |mean? |- |CORRECT |ANSWER✔✔-black |abdomen
What |other |names |do |fruit |flies |have? |- |CORRECT |ANSWER✔✔-red-eyed |pomace |fly, |vinegar |
fly |and |wine |fly, |all |relating |to |this |species' |attraction |to |fermenting |fruits
How |did |fruit |flies |get |their |name? |- |CORRECT |ANSWER✔✔-because |they |are |collected |by |
placing |a |bottle |containing |over-ripe |fruit |(often |bananas) |outside
, wild-type |- |CORRECT |ANSWER✔✔-phenotype |most |commonly |captured |in |the |wild
How |many |chromosomes |do |fruit |flies |have? |- |CORRECT |ANSWER✔✔-4 |pairs |(2n=8)
What |chromosome |in |fruit |flies |determines |sex? |- |CORRECT |ANSWER✔✔-chromosome |I
lygaues |mode |- |CORRECT |ANSWER✔✔-presence |of |different |sex |chromosomes
T |or |F: |Sex-determination |in |fruit |flies |follows |the |lygaeus |mode. |- |CORRECT |ANSWER✔✔-true
T |or |F: |In |fruit |flies, |females |are |XX |and |males |are |XY. |- |CORRECT |ANSWER✔✔-true
T |or |F: |Sex |is |dependent |on |the |actual |number |of |X |chromosomes |in |fruit |flies. |- |CORRECT |
ANSWER✔✔-true
How |can |the |genders |be |distinguished |in |fruit |flies? |- |CORRECT |ANSWER✔✔-- |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.
standard |F1 |cross |- |CORRECT |ANSWER✔✔-crosses |offspring |from |the |F1 |Generation |to |each |
other
backcross |- |CORRECT |ANSWER✔✔-performed |by |crossing |one |of |the |F1 |progeny |back |to |one |
of |the |original |parents |to |produce |the |F2 |generation
