The widespread use of insecticides has led to the rapid evolution of resistance in more than ________pest species.

• A) 50
• B) 5000
• C) 500
• D) 50,000

Genetic drift leads to a _________in the frequency of an allele that is favored by selection.

• A) No change
• B) Amplify
• C) Increase
• D) Decrease

Elimination of birds with intermediate-sized beaks is the example of ____________selection.

• A) Disruptive
• B) Stabilizing
• C) Oscillating
• D) Directional

Which of the following is a non random process?

• A) Mutation
• B) Natural selection
• C) Genetic drift
• D) None of these

Taxonomists use all of the following criteria to describe species, except________criteria

• A) Immunological
• B) Embryological
• C) Morphological
• D) Physiological

_____________ leads to balanced polymorphism.

• A) Mutation
• B) Homozygocity
• C) Heterozygocity
• D) Natural selection

_______alleles for sickle cell anemia carriers are less susceptible to malaria.

• A) Heterozygous
• B) None of these
• C) Homozygous recessive
• D) Homozygous dominant

In house fly resistance allele at the pen gene_______ the uptake of insecticide.

• A) Decrease
• B) Has no effect on
• C) Amplify
• D) Increase

Natural selection removes inferior alleles while ______can bring them back.

• A) None of these
• B) Mutation
• C) Genetic drift
• D) Gene flow

The most obvious differences among Galapagos finches were in their __________and Shape and size of bill.

• A) Dietary habitat
• B) Habitat
• C) Reproductive behavior
• D) Mode of nutrition

Traits that promote successful reproduction are said to be___________.

• A) Harmful
• B) Maladaptive
• C) Adaptive
• D) Advantageous

Which of the following factor contributes in reduction in number of population in Bottle neck effect?

• A) Competition
• B) Habitat destruction
• C) Predation
• D) Migration

which of these is the limitation to Natural selection?

• A) Evolution requires genetic similarity
• B) None of these
• C) Gene interactions affect fitness of alleles
• D) Genes don not have multiple effects

Which of the following results in the evolution of multiple new groups?

• A) Adaptation
• B) all of these
• C) Mutation
• D) Genetic drift

In _________ a few individuals from a parental population colonize new habitats.

• A) Greenhouse effect
• B) Inbreeding
• C) Bottle neck effect
• D) Founder effect

----------------occurs when different phenotypes are maintained at relatively stable frequencies in the population.

• A) Balanced polymorphism
• B) Momentary polymorphism
• C) Transient polymorphism
• D) None of these

___________ is a group of populations in which genes are actually, or potentially, exchanged through interbreeding.

• A) Individuals
• B) Species
• C) Community
• D) Colony

Formation of new forms from an ancestral species, in response to the opening of new habitats is called ___________.

• A) Systematic
• B) Natural selection
• C) Adaptive radiations
• D) Gene flow

The vital force behind adaptations is change in _______.

• A) Environment
• B) Forms
• C) Genotype
• D) Gene frequency

A requirement of speciation is that subpopulations are prevented from _____________.

• A) Resettlement
• B) All of these
• C) Migration
• D) Interbreeding