Evidences of Evolution

Q.

What are the four types of evidence that support the theory of evolution?

Q. ________ is a placental mammal showing convergent evolution with numbat.

1. Mole
2. Lemur
3. Spotted cuscus
4. Anteater

Q. Mendel's experiments failed to explain the concept of linkage because

1. genes of seven types of traits selected by him were located on four different chromosomes and behaved independently
2. genes selected by him were discrete and stable
3. genes selected by him were located on seven non homologous chromosomes
4. pea plant does not show linkage

Q.

What is human morphology?

Q. The sequence of which of the following is used to know the phylogeny :

1. DNA
2. m - RNA
3. r - RNA
4. t - RNA

Q.

Which of the following is not a vestigial organ in man?

1. Nail

2. Tail vertebra

3. Wisdom tooth

4. Vermiform appendix

Q. Identify the correct statements regarding the origin of life.
(i) Swan-neck flask experiment was performed by Francesco Redi
(ii) Louis Pasteur disproved theory of spontaneous generation completely
(iii) Cosmozoic theory of origin of life was proposed by Richter

1. (i), (ii) and (iii)
2. (ii) and (iii)
3. (i) and (iii)
4. only (ii)

Q. Which of the following statements about natural selection is most correct?

1. Well adapted individuals leave more offspring than poorly adapted individuals and thus, they contribute more gene pool to next generation
2. Adaptations beneficial in one given condition should be beneficial in all other conditions too
3. Different species that occupy a habitat would have undergone the same genetic changes
4. All of the above

Q. Which one of the following pairs of items correctly belongs to the category of organs mentioned against it ?

1. Wings of honeybee and wings of crow - Homologous organs
2. Nephridia of earthworm and malpighian tubules of cockroaches - Excretory organs
3. Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
4. Nictitating membrane and blind spot in human eye - Vestigial organs

Q. Identify A, B, C, D in the given diagram of E. coli cloning vector pBR322.

1. A–Hind I, B–EcoRI, C–$am{p}^R$, D–Ori
2. A– Hind I, B–BamH I, C–$ka{n}^R$, D–$am{p}^R$
3. A–BamH I, B–Pst I, C–Ori, D–$am{p}^R$
4. A–EcoR I, B–BamH I, C–$am{p}^R$, D–Ori

Q. Which of the following structures is homologous to the forelimbs of birds?

1. Wings of moth
2. Dorsal fin of shark
3. Forelimbs of bats
4. Hind limbs of rabbit

Q. How many of the following statement(s) are correct ?

I. Stanley Miller created electric discharge in a closed flask containing CO₂, H₂, NH₃ and water vapour at 200°C.

II. Haldane proposed the concept of a "primordial soup".

III. Water was not essential for the origin of life.

IV. The first non-cellular forms of life could reproduce and might have originated 3 billion years back.

1. All
2. Two
3. One
4. Three

Q. Single step large mutation leading to speciation is termed as___(i)_____by ___(ii)___.

1. (i)-saltation, (ii)-Darwin
2. (i)-saltation, (ii)-Hugo de Vries
3. (i)-variation, (ii)-Hugo de Vries
4. (i)-natural selection, (ii)-Darwin

Q.

In the developmental history of mammalian heart, it is observed that it passes through a two-chambered fish like heart, three-chambered frog-like heart and finally four-chambered stage. To which hypothesis can this above cited statement be approximated?

1. Lamarck’s principle

2. Mendelian principles

3. Biogenetic law

4. Hardy Wienberg law

Q. Forelimbs of cat, whale, and bats are used in walking, swimming, and flying respectively. Choose the correct option which describes the describes the relationship between the above organs.

1. Analogous organ
2. Homologous organ
3. Adaptive radiation
4. Convergent evolution

Q. An intermediate species that exhibits traits common to both its ancestral and descendant groups is known as species.

1. missing
2. link
3. transitional
4. fossil

Q.

Vestigial organs are rudimentary and _______ organs present in organisms. (functional/ non-functional)

Q. Given below is the diagrammatic representation of a key concept from Darwinism. Identify the correct option.

1. Natural selection
2. Branching descent
3. Saltation
4. Mutation

Q. Short/Long answer type questions
Differentiate between cultural evolution and biological evolution. Give one example of each in humans.

Q. Identify the correct statements regarding the origin of life.
(i) Swan-neck flask experiment was performed by Francesco Redi
(ii) Louis Pasteur disproved theory of spontaneous generation completely
(iii) Cosmozoic theory of origin of life was proposed by Richter

1. (i), (ii) and (iii)
2. (ii) and (iii)
3. (i) and (iii)
4. only (ii)

Q.

Which one of the following is the vestigial organ in human beings?

1. Femur

2. Tibia

3. Spleen

4. Nictitating membrane

Q. Who coined the term alleles?

Q. Which of the following characteristic is an exception to crocodiles from rest of the reptiles?

1. Capacity to come on land
2. Capacity to lay shelled eggs
3. Presence of four-chambered heart
4. Presence of powerful jaws

Q. If the frequency measured in a Hardy-Weinberg population is different from the expected, then the difference in value indicates:

1. extent of mutation in the population
2. extent of external change
3. extent of evolutionary change
4. that the population is in the Hardy - Weinberg equilibrium

Q. Which one of the following pairs of items correctly belongs to the category of organs mentioned against it ?

1. Nephridia of earthworm and malpighian tubules of cockroaches - Excretory organs
2. Wings of honeybee and wings of crow - Homologous organs
3. Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
4. Nictitating membrane and blind spot in human eye - Vestigial organs

Q. Which is the correct statement from the folowing?

1. Biogenetic law- Recapitulation theory
2. Lamarck's theory- Theory of continuity of germplasm
3. Lamarck's theory- Struggle for existence
4. Darwin's theory- Use and misuse of organs

Q. What is organic evolution? Describe Palaeontological and Embryological Evidence in favour of organic evolution.

Q. Mendel's experiments failed to explain the concept of linkage because

1. genes of seven types of traits selected by him were located on four different chromosomes and behaved independently
2. genes selected by him were discrete and stable
3. genes selected by him were located on seven non homologous chromosomes
4. pea plant does not show linkage

Q.

Study of fossils comes under

1. organic evolution

2. palaeogeography

3. paleontology

4. herpetology

Q. Development of which trait freed land vertebrates from water.

1. Four appendages
2. Cleidoic egg
3. Four chambered heart
4. Lungs