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Q 1. Selecting for arrested flower development in wild cabbage led to the development of which plant?
Cauliflower
Kohlrabi
Broccoli
Kale
Q 2. Identify the incorrect statement:
Initially, feathers probably evolved to provide insulation in cold weather.
Gradually over a period of time, feathers became useful for flight.
All dinosaurs possessing feathers adapted them to flight.
Birds evolved later than dinosaurs and used feathers to fly.
Q 3. The term speciation was coined by
C. Darwin
F. Cook
Lamarck
A. V. Leeuwenhoek
Q 4. If a population of insects faces a food scarcity in the environment, then which of the following remain unchanged?
the protein content of insects
the amount of energy obtained through food
DNA of germ cells
movement of the body
Q 5. Which is not correct regarding the relation of human beings with chimpanzees?
Both had a common ancestor long time ago
Human beings evolved from chimpanzees
Chimpanzees are very closely related to humans in DNA structure
Both evolved due to generation of diversity and its selection by nature
Q 6. By studying the ratio of different isotopes of the same element in a material we can know the age of
Living animals
Fossil
Dead animals and plants remains
Living plants
Q 7. Which is not correct regarding the relation of human beings with chimpanzees?
Both had a common ancestor long time ago
Human beings evolved from chimpanzees
Chimpanzees are very closely related to humans in DNA structure
Both evolved due to generation of diversity and its selection by nature
Q 8. The study of fossils is helpful to know:
Evolutionary relationships
Environment of earth
Hierarchical relationships
Biodiversity in an ecosystem
Q 9. In living organisms, how many gene set(s) does each germ cell has?
one
two
either one or two
multiple
Q 10. Which of the following is correct?
Fossil found near earth surface is more recent
Fossil found in deeper layers is more recent
Age of fossil is not related to the depth where it is found
Fossil found in the rocks is more recent
Q 11. The traits which are expressed in first filial (F1) generation are known as
dominant
recessive
acquired
inherited
Q 12. Which of the following act as an information source for making proteins in a cell?
RNA
Lipids
DNA
Chromosome
Q 13. Which of the following is not a characteristic of genetic drift?
Occurs in large sized population
Confer no survival advantage
Occurs due to chance factor
Causes change in the gene frequency.
Q 14. Archaeopteryx is a missing link between:
Fishes and Amphibians
Reptiles and Aves
Aves and Mammals
Amphibians and Reptiles
Q 15. What is the genotypic ratio of plants in an F2 generation when a tall pea plant (TT) is crossed with a dwarf pea plant (tt)?
1(TT) : 2(Tt) : 1(tt)
3(Tt) : 1 (tt)
1(Tt) : 2(TT) : 1(tt)
3(TT) : 1 (tt)
Q 16. Change in gene frequency of a small population due to some accident is called
Selection
Adaptation
Genetic drift
Evolution
Q 17. Which are the organisms that are not affected by geographic isolation?
Aquatic organisms
Organisms with a short reproductive cycle
Self-pollinating plants
Plants which are pollinated by insects
Q 18. On which plant did Mendel conduct his experiments to study the mechanism of inheritance?
pea
gram
bean
moong
Q 19. The number of successful variations is maximised by the process of:
mutation
sexual reproduction
evolution
inheritance
Q 20. Different kinds of wild cabbage are evolved as a result of:
Natural selection
Reproduction
Artificial selection
Decomposition
Q 21. The normal number of chromosomes in the progeny is maintained when the germ cells:
divide by the process of mitosis
take one chromosome from each pair
take all maternal and paternal chromosomes
divide by mitosis and take all maternal and paternal chromosome
Q 22. Among the following who gave the idea of 'natural selection'?
Charles Darwin
Mendel
Stanley L. Miller
J.B.S. Haldane
Q 23. The initial function of feathers is to provide:
Shape
Strength
Beauty
Flight
Q 24. What will happen if change occurs in the reproductive tissues of an organism?
It will have no effect
The changes will be inherited
The organism will not be able to survive
The changes will be restricted to that generation only
Q 25. Which is not a tool of tracing evolutionary relationships?
Time- dating
Excavating
Determining DNA sequences
Historical details
Q 26. The first human-like creature found in East African grasslands was known as:
Homo habilis
Dryopithecus
Australopithecines
Ramapithecus
Q 27. In humans, the sex of children is determined by
The chromosome inherited from father
The chromosome inherited from mother
somatic cells
Chromosomes present in non-reproductive cells
Q 28. Eyes in the form of eyespots exist in
Amoeba
Flatworm
Octopus
Crab
Q 29. Theoretically taking about a common ancestor and making small groups of species on this basis, we keep going
Forward
Backward
Both forward and backwards
None of these
Q 30. A pea plant with round and yellow seeds (RRYY) is crossbred with another pea plant having wrinkled and green seeds (rryy). Among the offspring obtained in an F2 generation, plants with which traits were found to be maximum in number?
Round green seeds
Wrinkled green seeds
Round yellow seeds
Wrinkled yellow seeds
Q 31. The term used to express details of appearance or behaviour is:
Classification
Characteristic
Relation
Life-cycle
Q 32. The wings of a bat are basically
Feathery covering all along the arm
Modified limbs
Feathery skin folds of fingers
Skin folds stretched between elongated fingers
Q 33. What is correct about human evolution?
Though there is great diversity in human forms and features, all humans are a single species.
The earliest human members can be traced to Europe.
From Europe, the earliest humans migrated to Africa and then Asia.
Each human race has evolved separately and hence belongs to different species.
Q 34. The term speciation was coined by
C. Darwin
F. Cook
Lamarck
A. V. Leeuwenhoek
Q 35. Among the following which is the most fundamental characteristic of all living organisms?
Their cells can do photosynthesis
Presence of nucleus in their cells
Cell is the basic unit of life
Presence of a body skeleton
Q 36. Genes are segments of:
DNA
chromosomes
RNA
amino acids
Q 37. Different kinds of plants like broccoli, cauliflower and kale have been bred from wild cabbage as a result of
Natural selection
Regeneration
Artificial selection
Dihybrid cross
Q 38. In humans, the sex of children is determined by
The chromosome inherited from father
The chromosome inherited from mother
somatic cells
Chromosomes present in non-reproductive cells
Q 39. Which feature has to be selected in wild cabbage if the vegetable kale has to be artificially bred from it?
Very short distance between leaves
Swollen parts of flowers
Slightly larger leaves
Sterile flowers
Q 40. The number of differences that appear in the new progeny in the case of sexual reproduction is termed as
heredity
inheritance
variation
evolution

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