Biology 1108 exam review Questions and Answers 100% Verified

Biology 1108 exam review Questions and Answers
100% Verified

Question:
mutations

Answer:

changes to the dna sequence



Question:
recombination

Answer:

shuffles dna



Question:
gene pool

Answer:

total genes present in the population



Question:
allele frequency=

Answer:

number of copies of allele/ actual number of alleles in the population

,Question:
genotype frequency =

Answer:

number of individuals with geno/ number of individuals in the popu- lation



Question:
conditions for hardy Weinberg equilibrium

Answer:

no selection, no genetic drift, no migration, no mutation, random mating



Question:
theory of evolution by natural selection:

Answer:

variation in the population, variation is heritable



Question:
fitness

Answer:

the relative contribution of an individual to the future gene pool



Question:
natural selection

Answer:

increases reproductive of heritable traits

, Question:
natrual selections types

Answer:

: stable, directional, disruptive



Question:
stabalizing selection:

Answer:

after phentotypes go more towards middle



Question:
directional slection

Answer:

moves from one phentotype to another phenotype shifts



Question:
disruptive selection:

Answer:

goes from stable --> moving two too extremes



Question:
natrual selections is...

Answer:

adaptive