New species evolve by sudden and distinct heritable changes called mutations and not by Natural Selection. The idea was put forward by:
A.Herbert Spencer
B.Muller
C.De Vries
D.Alfred Russell Wallace
Category: Organic Evolution Theories Mcqs
In formulating his theory of organic evolution by Natural Selection, Darwin was greatly influenced by the writings of:
A.Malthus
B.Mendel
C.De Vries
D.Lamarck
Hugo De Vries pioneered the theory of mutations to explain the mechanism of organic evolution. The material on which he performed experiments was:
A.Drosophila melanogaster
B.Pisum sativum
C.Oenothera Lamarckiana
D.Escherichia coli
Mutations are generally:
A.Recessive
B.Dominant
C.Harmful
D.Useful
Initial material to Medern Synthetic Theory of Organic Evolution was provided by Dobzhansky’s book entitled:
A.Natural Selection and Origin of Species
B.Origin of Species
C.Genetics and Origin of Species
D.Philosophie Zoologique
Mutations are due to:
A.Infection by micro-organisms
B.Abrupt changes in genes
C.Nutritional factors
D.Hybridization
Jean Baptist de Lamarck – a French Naturalist, besides giving his famous theory of organic, Evolution, also coined the word:
A.Biology
B.Invertebrates
C.Both (a) & (b)
D.None of these
Which of the following was most influential in formulation of Theory of Natural Selection:
A.Inheritance of acquired characters
B.Malthus’s essay on population
C.Struggle for existence
D.Mendel’s laws of inheritance
Currently Evolution and Natural Selection are regarded as natural phenomena. Principles of Genetics applied to Population Dynamics have removed the drawbacks of Darwin’s Theory as a result neo Darwinism has emerged out as Modern Synthetic Theory of Organic Evolution. The theory was designated to explain organic evolution by:
A.Charles Lyell
B.Herbert Spencer
C.Huxley
D.De Vries
Darwin’s finches are found in:
A.Australia
B.New Zealand
C.Iceland
D.Galapago Islands
