MCQ Bank
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
Both Wallace’s and Darwin’s papers were published in the Journal of the Proceedings of the Linnean Society in__________.
- A) 1859
- B) 1829
- C) 1849
- D) 1839
Formation of new forms from an ancestral species, usually in response to the opening of new habitats is_________.
- A) Genetic drift
- B) Adaptive radiation
- C) Speciation
- D) Adaptation
Enzyme lactate dehydrogenase catalyzes the conversion of _________ to lactate.
- A) Amino acid
- B) Cholesterol
- C) Pyruvate
- D) Uric acid
It tends to favor the common phenotypes and eliminate variation from a population.
- A) Oscillating selection
- B) None of these
- C) Positive frequency-dependent selection
- D) Negative frequency dependent selection
In __________ any allele may increase or depart the population.
- A) Natural selection
- B) Mutation
- C) None of these
- D) Genetic drift
Extinct hippopotamus like animal, now called
- A) Greater Rhea
- B) Toxodon
- C) Thoantherium
- D) Glyptodonts
Stock of different genes in an interbreeding population is called as________.
- A) Gene pool
- B) Genetic drift
- C) Gene flow
- D) Gene reservoir
In___________, the fitness of a phenotype does not depend on its frequency
- A) Oscillating selection
- B) Both of these
- C) None of tese
- D) Frequency dependent selection
Gradual changes over the time with changing environment was foundation of
- A) Theory of uniformitarianism
- B) Theory of natural selection
- C) None of these
- D) Theory of inheritance of acquired characteristics
Inbreeding is common in ________population.
- A) Small
- B) Endangered
- C) Large
- D) Conspicuous
Which of the following is NOT the component of Fitness?
- A) Mating success
- B) Survival
- C) High mortality rate
- D) Number of offspring per mating
Who suggested that genes are responsible for traits?
- A) Lamarck
- B) Mendel
- C) Darwin
- D) Weismann