Biol 316 Exam 2 WKU Questions With
Correct Answers
Directional |selection |- |CORRECT |ANSWER✔✔-results |in |change |of |average |value |of |trait, |
progress |moves |in |one |direction, |does |not |necessarily |affect |variance
Stabilizing |selection |- |CORRECT |ANSWER✔✔-maintenance |of |average |value, |variation |is |
reduced
Disruptive |selection |- |CORRECT |ANSWER✔✔-lower |fitness |for |average |value, |increases |
variance, |prefers |one |of |two |extremes, |can |lead |to |speciation
Natural |selection |- |CORRECT |ANSWER✔✔-difference |between |average |survival |of |individuals |
with |certain |phenotypes
Mutation |- |CORRECT |ANSWER✔✔-Changes |in |genes |of |organism |- |results |in |something |not |
seen |in |parents
Gene |flow |- |CORRECT |ANSWER✔✔-the |movement |of |alleles |from |one |population |to |another
Genetic |drift |- |CORRECT |ANSWER✔✔-changes |in |allele |frequencies |resulting |from |errors |
drawing |from |gene |pool, |random |chance
Genetic |variation |- |CORRECT |ANSWER✔✔-variation |with |genetic |basis
, Environmental |variation |- |CORRECT |ANSWER✔✔-variation |caused |environmental |effects |of |
phenotype
Genotype |by |environment |interactions |- |CORRECT |ANSWER✔✔-variation |from |genetic |
differences |and |affected |by |environment
Variable |component |of |nucleotides |is? |- |CORRECT |ANSWER✔✔-base
Purines |- |CORRECT |ANSWER✔✔-A |and |G, |double |ring |of |nitrogen
Pyrimidines |- |CORRECT |ANSWER✔✔-T |and |C |single |ring |of |nitrogen
Central |DOGMA |- |CORRECT |ANSWER✔✔-DNA |transcribed |to |RNA |translated |to |protien
Codons |- |CORRECT |ANSWER✔✔-triplit |of |nucleotide
Amino |acids |in |polypeptide |chain |form? |- |CORRECT |ANSWER✔✔-protiens
Most |mutation |is |negative |t |or |f |- |CORRECT |ANSWER✔✔-True
Point |mutation |- |CORRECT |ANSWER✔✔-changes |single |base
Transitions |- |CORRECT |ANSWER✔✔-replaces |purine |with |purine |or |pyrimidines |with |
pyrimidines
Transversions |- |CORRECT |ANSWER✔✔-replaces |purine |with |pyrimidine |or |vise |versa
Correct Answers
Directional |selection |- |CORRECT |ANSWER✔✔-results |in |change |of |average |value |of |trait, |
progress |moves |in |one |direction, |does |not |necessarily |affect |variance
Stabilizing |selection |- |CORRECT |ANSWER✔✔-maintenance |of |average |value, |variation |is |
reduced
Disruptive |selection |- |CORRECT |ANSWER✔✔-lower |fitness |for |average |value, |increases |
variance, |prefers |one |of |two |extremes, |can |lead |to |speciation
Natural |selection |- |CORRECT |ANSWER✔✔-difference |between |average |survival |of |individuals |
with |certain |phenotypes
Mutation |- |CORRECT |ANSWER✔✔-Changes |in |genes |of |organism |- |results |in |something |not |
seen |in |parents
Gene |flow |- |CORRECT |ANSWER✔✔-the |movement |of |alleles |from |one |population |to |another
Genetic |drift |- |CORRECT |ANSWER✔✔-changes |in |allele |frequencies |resulting |from |errors |
drawing |from |gene |pool, |random |chance
Genetic |variation |- |CORRECT |ANSWER✔✔-variation |with |genetic |basis
, Environmental |variation |- |CORRECT |ANSWER✔✔-variation |caused |environmental |effects |of |
phenotype
Genotype |by |environment |interactions |- |CORRECT |ANSWER✔✔-variation |from |genetic |
differences |and |affected |by |environment
Variable |component |of |nucleotides |is? |- |CORRECT |ANSWER✔✔-base
Purines |- |CORRECT |ANSWER✔✔-A |and |G, |double |ring |of |nitrogen
Pyrimidines |- |CORRECT |ANSWER✔✔-T |and |C |single |ring |of |nitrogen
Central |DOGMA |- |CORRECT |ANSWER✔✔-DNA |transcribed |to |RNA |translated |to |protien
Codons |- |CORRECT |ANSWER✔✔-triplit |of |nucleotide
Amino |acids |in |polypeptide |chain |form? |- |CORRECT |ANSWER✔✔-protiens
Most |mutation |is |negative |t |or |f |- |CORRECT |ANSWER✔✔-True
Point |mutation |- |CORRECT |ANSWER✔✔-changes |single |base
Transitions |- |CORRECT |ANSWER✔✔-replaces |purine |with |purine |or |pyrimidines |with |
pyrimidines
Transversions |- |CORRECT |ANSWER✔✔-replaces |purine |with |pyrimidine |or |vise |versa
