evolution Flashcards
Which scientist does not match his achievements
- A. Lamarck published his theory of evolution
- B. Lyell published principles of geology
- C. Malthus published an essay on the principle of population
- D. Cuvier published papers on inheritance
Cuvier published papers on inheritance
The concept of evolution was first presented by
Aristotle
Prokaryotes are considered to be evolved
3.5 billion years ago
The process of evolution of different species in a given area starting from a point and spreading to other geographical areas is known as
migration. Example: Darwinian finches and Australian marsupials.
Philosophic zoologique was a paper published in 1809 by
Lamrack
The theory of new creation was composed by:
Louis Agassiz
The theory of uniformitarianism was proposed by:
Hutton and Lyell
give an example of analogous features
Insects use wings to fly like bats and birds, but the wing structure and embryonic origin is completely different. These are analogous structures.
different structure, similar function
Darwins finches are found in:
Galapagos Island
A Bird’s wings are homologous to:
Dog’s front legs
human forelimbs
sea flipper
cat’s paw
horse front leg
bat wing
Appendix is vestigial in man but may play role in:
immunity
Similarity in characteristics resulting from common ancestry is known as:
homology
Evolutionary convergence is characterized by:
Development of a common set of characteristics in the groups of different ancestry
Similarities in organism with different genotype indicates
Convergent evolution
Which is considered as strong evidence of evolution?
fossil record
The homologous organs are those that show similarity in
origin and structure
PROBLEMS WITH DARWIN’S EXPLANATION
- Darwin didn’t have any knowledge of Mendel’s work on genetics, so he didn’t get how heritability worked, (how were favorable traits passed from parents to offspring?)
- Mutation had not been discovered, so Darwin couldn’t explain where variation came from.
Darwin in his “Natural Selection Theory” did not believe in the role of discontinuous variation in natural selection. Darwin always believed in the universal occurrence of variation. In his opinion, variation is continuous in nature. Darwin did not understand the cause of variation and assumed it was one of the innate properties of living things. Now it is known that variation is due to mutation and thus it may be discontinuous.
Which is the most important factor for continuity of a species from
Replication of genetic material is the most important factor for continuity of a species from evolutionary point of view.
When genetic material replicates, only then it could be transferred from one generation to next resulting in continuity of a species.
Asexual animals do not produce gametes while sexual animals do. So, formation of gametes is not an important factor in asexual animals though replication of genetic material takes place in both asexual as well as sexual animals.
The first organisms’ mode of nutrition was
chemo heterotrophs.
The first cells were almost certainly heterotrophs, obtaining energy and nutrients from organic molecules in their environment
Paleontology is the study of
fossils
A respiratory protein found in all aerobic species is:
Cytochrome c
Flagella might have arisen through the ingestion of
Spirochetes
spiral-shaped bacteria
Neo-Darwinism is
Modern synthetic theory
