Lamarckism

Q. Lamarckism and Neo-lamarckism agree on this particular point:

1. Environment has an effect on the organisms which leads to evolution
2. The use and disuse theory
3. Characters acquired by the germplasm are inherited
4. Internal Vital force

Q. The technique of genetic engineering include

1. Creation of recombinant DNA
2. Gene transfer
3. Gene cloning
4. All of the above

Q.

The gases present in the atmosphere of primitive earth were:

1. Nitrogen and oxygen

2. Carbon dioxide and carbon monoxide

3. Ozone and hydrogen

4. Methane, ammonia, and water

Q.

Q. Why it is said that ' The geological history of earth closely correlates with the biological history of earth' ?

Q. The first non-cellular forms of life are believed to be giant molecules of

1. RNA
2. Proteins
3. Polysaccharides
4. All of these

Q. Cranial capacity of $Australopithecus$ was

1. 
   $675–719$ cc
2. 
   $882–897$ cc
3. 
   $390–510$ cc
4. 
   $1015–1075$ cc

Q. Which of the following statements do not reflect the views of the critics of Lamarckism?

1. There is no internal vital force in living organisms
2. Germplasm has no role in evolution
3. Characters acquired during the lifetime are not inherited
4. New characters do not develop according to the new needs of the organism

Q. Theory of inheritance of acquired characters was given by

1. Darwin
2. De Vries
3. Wallace
4. Lamarck

Q.

Which of the following is a living fossil?

1. Moss

2. Saccharomyces

3. Spirogyra

4. Cycas

Q. What is the current era in the geologic time scale known as?

1. Paleozoic era
2. Mesozoic era
3. Cenozoic era
4. Jurassic era

Q. Define variation.

Q. According to theory of Pangenesis of Drawin

1. only germ cells produce pangenes.
2. organism is performed
3. every somatic cell and tissue of body produces pangenes which are heritable.
4. only male produces pangenes

Q. Which of the following statements is FALSE based on Darwin’s theory of evolution?

1. Natural selection is the driving force of evolution
2. New characters are acquired by the living beings either due to the use or disuse of the organs
3. Gradual accumulation of useful variations results in the origin of new species
4. Fitness is measured in terms of reproductive success

Q. Among the human ancestors given below, cranial capacity was the least in _____ and highest in _____.
i) Homo erectus, ii) Homo habilis iii) Homo neanderthalensis, iv) Australopithecines

1. i and ii respectively
2. iii and ii respectively
3. iv and iii respectively
4. iv and ii respectively

Q. The following events occur during the various phases of the cell cycle. Name the phase against each of the events.

a. Disintegration of nuclear membrane __________________

b. Appearance of nucleolus ______________________

c. Division of centromere _____________________________

d. Replication of DNA ________________________________

Q. Select the correct match among the following:

1. Analogous organs - bones of forelimbs of vertebrates; Homologous organs - wings of butterfly and birds
2. Analogous organs - thorns of Bougainvillea and tendrils of Cucurbita; Homologous organs - eyes of octopus and mammals
3. Analogous organs - eyes of octopuses and mammals; Homologous organs - forelimbs bones of whale and bat
4. Analogous organs - thorns of Bougainvillea and tendrils of Cucurbita; Homologous organs - wings of butterflies and birds

Q. Which of the following options given are correct examples each of convergent evolution and divergent evolution?

1. Convergent evolution	Divergent evolution
   Eyes of octopus and mammals	Bones of forelimbs of vertebrates

2. Convergent evolution	Divergent evolution
   Thorns of Bougainvillea and tendrils of Cucurbita	Wings of butterflies and birds

3. Convergent evolution	Divergent evolution
   Bones of forelimbs of vertebrates	Wings of butterflies and birds

4. Convergent evolution	Divergent evolution
   Thorns of Bougainvillea and tendrils of Cucurbita	Eye of octopus and mammals

Q. In convergent evolution, organisms share physical similarities that can be seen because they

1. have a common ancestor
2. live in the similar environment towards the same function
3. develop homologous structures
4. live in the similar environment towards different function

Q.

explain eith suitable examples importance of anatomical evidences in evolution

Q.

An important evidence in favour of organic evolution is the occurrence of the following organs:

1. Homologous organs only

2. Homologous and analogous organs

3. Analogous and vestigeal organs

4. Homologous and vestigeal organs

Q.

Choose the correct statement(s) with reference to organic evolution.
I. Flippers of whales and wings of bats exhibit analogy.
II. Wings of butterflies and wings of birds exhibit homology.
III. Organs with dissimilar structures, performing similar functions are called analogous organs.
IV. Organs with similar structure and origin are called homologous organs.

1. I and III
2. II and IV
3. I and II
4. III and IV

Q. The present giraffe has a long neck as compared to its ancestors. Lamarck believed it could be due to

1. Continuity of germplasm
2. Inheritance of acquired characteristics
3. Natural selection
4. Descent with change

Q. Appearance of short legged Ancon sheep to normal legged parents substantiated:

1. Darwin’s theory of origin of species by natural selection
2. Modern synthetic theory of evolution
3. Mutation theory of evolution
4. Lamarck’s theory of inheritance of acquired characters

Q. In which book Lamarck proposed the theory of evolution ?

Q.

What is the meaning of evolution?

Q. Select the incorrectly matched pair(s):

1. Only 2
2. Only 1
3. 1 and 2
4. 1 and 3

Q. How many of the following statements are true regarding Neo-Darwinism?
I - According to Neo-Darwinism, all useful variations are inheritable
II - Ernst Mayr was one among a group of scientists that proposed the theory of Neo-Darwinism
III - It does not take the gene pool of a population into consideration
IV - It is the theory of origin of species proposed by Darwin

1. 1
2. 2
3. 3
4. 4

Q. Which among the following statements are correct regarding Neo-Darwinism?
I. It explains how variations appear in a population
II. It explains the difference between somatic and germinal variations
III. Dobzhansky, Fisher, Mayr, Stebbins, Haldane and Wright proposed the modern synthetic theory of evolution

1. Only I
2. I and III
3. Only II
4. I, II and III

Q. Advancements in genetic engineering has been possible due to discovery of

1. Transposons
2. Exonucleases
3. Restriction endonucleases
4. Oncogenes

Q.

What are vestigial organs? How their existence is satisfactorily explained by the doctrine of organic evolution?