evolution

Question 1

Which scientist does not match his achievements

1. A. Lamarck published his theory of evolution
2. B. Lyell published principles of geology
3. C. Malthus published an essay on the principle of population
4. D. Cuvier published papers on inheritance

Answer 1

Cuvier published papers on inheritance

Question 2

The concept of evolution was first presented by

Answer 2

Aristotle

Question 3

Prokaryotes are considered to be evolved

Answer 3

3.5 billion years ago

Question 4

The process of evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

Answer 4

migration. Example: Darwinian finches and Australian marsupials.

Question 5

Philosophic zoologique was a paper published in 1809 by

Answer 5

Lamrack

Question 6

The theory of new creation was composed by:

Answer 6

Louis Agassiz

Question 7

The theory of uniformitarianism was proposed by:

Answer 7

Hutton and Lyell

Question 8

give an example of analogous features

Answer 8

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

Question 9

Darwins finches are found in:

Answer 9

Galapagos Island

Question 10

A Bird’s wings are homologous to:

Answer 10

Dog’s front legs
human forelimbs
sea flipper
cat’s paw
horse front leg
bat wing

Question 11

Appendix is vestigial in man but may play role in:

Answer 11

immunity

Question 12

Similarity in characteristics resulting from common ancestry is known as:

Answer 12

homology

Question 13

Evolutionary convergence is characterized by:

Answer 13

Development of a common set of characteristics in the groups of different ancestry

Question 14

Similarities in organism with different genotype indicates

Answer 14

Convergent evolution

Question 15

Which is considered as strong evidence of evolution?

Answer 15

fossil record

Question 16

The homologous organs are those that show similarity in

Answer 16

origin and structure

Question 17

PROBLEMS WITH DARWIN’S EXPLANATION

Answer 17

1. 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?)
2. 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.

Question 18

Which is the most important factor for continuity of a species from

Answer 18

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.

Question 19

The first organisms’ mode of nutrition was

Answer 19

chemo heterotrophs.
The first cells were almost certainly heterotrophs, obtaining energy and nutrients from organic molecules in their environment

Question 20

Paleontology is the study of

Answer 20

fossils

Question 21

A respiratory protein found in all aerobic species is:

Answer 21

Cytochrome c

Question 22

Flagella might have arisen through the ingestion of

Answer 22

Spirochetes
spiral-shaped bacteria

Question 23

Neo-Darwinism is

Answer 23

Modern synthetic theory