Free Concept of Evolution MCQs with Answers

• A. Natural selection
• B. Artificial selection
• C. Evolution
• D. Genetic drif

Explanation: When humans purposefully apply selection pressure to populations, such as in breeding programs for plants or animals, it is known as…

• A. Amphibians and reptiles
• B. Reptiles and birds
• C. Birds and mammals
• D. None of these

Explanation: Archaeopteryx is known to be a communicating connection between reptiles and birds because it looks like a bird and has bird wings.

• A. Analogous organs
• B. Homologous organs
• C. Convergent organs
• D. Divergent organs

Explanation: Analogous organs are similar in function but different in structure. These organs have evolved independently in different species to…

• A. Darwin's theory of evolution
• B. Lamarckism
• C. Neo-darwinism
• D. Endosymbiont Hypothesis

Explanation: This statement aligns with the endosymbiotic theory, which suggests that mitochondria and chloroplasts were once free-living bacteria that…

• A. Organisms ranged from simple to complex.
• B. One type of organism gives rise to another type of organism.
• C. Both a and b.
• D. All living things are specially created by nature.

Explanation: During Aristotle's time, it was though that organisms ranged from simple to complex. All other options are incorrect.

• A. Organisms ranged from simple to complex
• B. One type of organism gives rise to another type of organism
• C. Both Options A and B are correct
• D. Only living things are created by nature

Explanation: In Aristotle's time, with respect to the theory of inheritance, it was already known that organisms varied on the basis of their…

• A. Analogous.
• B. Homologous.
• C. Unilogous.
• D. Hypologous.

Explanation: Homologous organs are defined as the organs of different animals that are having a similar structure but differ in their functions.

• A. DNA and proteins
• B. DNA and gene
• C. RNAs and proteins
• D. DNA and RNAs

Explanation: Explanation:Evolutionary relationships among species are reflected in their DNA and proteins - in their genes and gene products.

• A. Random in population's pool
• B. Random in a species
• C. Fixed in population's pool
• D. Fixed in the gene pool

Explanation: Explanation:If all individuals in a population are homozygous for the same allele, then that allele is fixed in the population's gene…

• A. Haemoglobin
• B. Myoglobin
• C. Cytochrome c
• D. Pilin

Explanation: [A] Haemoglobin is not found in aerobic bacteria only in man[B] Myoglobin is found in man only[C] found in both man and aerobic bacteria s…

• A. Embryology Record
• B. Molecular Record
• C. Biochemical Record
• D. Fossil Record

Explanation: Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.

• A. Homologous
• B. Analogous
• C. Vestigial
• D. Fossilized

Explanation: Homologous organs can be defined as the organs of different animals that are similar in structure but perform different functions.

• A. Development of branchial arches invertebrate embryo.
• B. Distribution of species
• C. Comparison of genes and proteins in different species
• D. Study of vestigial organs

Explanation: To compare species to see how they have evolved differently, we look at their gene sequences or the amino acid sequence of essential…

• A. Hardy-Weinberg Theorem
• B. Mendel's law of independent assortment
• C. Mendel's law of segregation
• D. Theory presented by Schleiden and Schwann

Explanation: Hardy-Weinberg Theorem allows us to calculate the allele frequency in populations where the phenotype that we are examining is the same…

• A. Introduction of heterospory
• B. Rentantion of the megaspore within megasporangium
• C. Fertilization of the egg prior to discharge.
• D. All of the above

Explanation: All of the options given in the question are correct as there are various steps involved in the evolution of seed habit which are as…

• A. Appendix
• B. Leg muscles
• C. Coccyx
• D. Nictitating membrane

Explanation: Vestigial organs are rudimentary anatomical structures that are retained in a species despite having lost their primary ancestral…

• A. Homologous
• B. Analogous
• C. Acquired
• D. Vestigial

Explanation: These are the organs that have similar anatomical structures but perform different functions.

• A. Equus
• B. Eohippus
• C. Mesohippus
• D. Merychippus

Explanation: The modern horse is called Equus caballus.

• A. Digestion
• B. Excretion
• C. Immunity
• D. Movement

Explanation: The appendix has been found to play a role in mammalian mucosal immune function.

• A. Gene pool
• B. Genetic drift
• C. Gene mutation
• D. Gene flow

Explanation: Genetic drift is a mechanism of evolution, it refers to random fluctuations in the frequencies of alleles from generation to generation…