Objective

Ans- Variation

Ans- heredity

Ans- genetics

Ans- symptom type

Ans- gene variant

Ans- by johnsen

Ans- student from china

Ans- to Gregor John Mandel

Ans- genetic trait

Ans- chromosomes or chromosomes

Ans- in the nucleus

Ans- by Darwin

Ans- 23 pair

Ans- Darbinism

Ans- of natural selection

Ans- Variation

Ans- (c) Human

Ans- (c) Chimpanzee

Ans- from reptiles

Ans- Y-chromosome

Ans- based on heredity

Ans- Deoxyribonucleic Acid

Ans- in organisms that produce offspring by sexual reproduction

Ans- phenotype or phenotype

Ans- in the snail

Ans- of genes

Ans- of acquired symptoms

Ans- by gradual and continuous development

Ans- dominant trait

Ans- recessive trait

Ans- (a) tall

Ans- (b) Dwarf

Ans- (d) all of them

Ans- by artificial selection

Ans- diploid hybridization

Ans- Characteristics

Ans- genetic deviation

Ans- gene cell

Ans- first progeny generation (F₁)

Ans- Mendel's first law or separation law

Ans- 9:3:3:1

Ans- hybrid tall plants

Ans- pure parent dwarf plants

Ans- recessive symptoms and dwarfism

Ans- all round and yellow

Ans- spherical, yellow and green

Ans- parent generation

Ans- first child

Ans- second child

Ans- (d) the ability to reproduce

Ans- (b) Feet of bird and human

Ans- Same Structure, Different Functions

Ans- homozygous part

Ans- reducing

Ans- in the category of heterogeneous

Ans- Lamarckism and Darbinism

Ans- African continent

Ans- when there is interbreeding between them

Ans- organic evolution

Ans- about 3.5 billion years ago

Ans- micro evolution

Ans- Due to natural selection and genetic divergence

Syntactic Ratio → 3:1

Isomorphic ratio → 1:2:1

Ans- residual organ

Ans- homologous organs

Ans- homozygous part

Ans- micro evolution

Ans- archeopteryx

Ans- molecular phylogenetic

Ans- Mollusca

(a) Eye color (b) Skin color (c) Body shape (d) Nature of hair

Ans- (b) Skin color

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Objective

Lesson-9 Heredity and Evolution

Question-1. What is the difference between different members of the same species called?

Question-2. What is the transmission of different traits from one generation to another of an organism called?

Question-3. What is the study of the methods of transmission of genetic traits from generation to generation called?

Question-4. What are the symptoms that are visible from outside called?

Question-5. What are the genetic traits that are not visible from outside called?

Question-6. Who propounded the law of inheritance of traits in humans?

Question-7. The part of DNA that contains the information necessary for the synthesis of a protein is called

Question-8. Who introduced the word gene?

Question-9. To whom do we have more in common from a developmental standpoint?

Question-10. Who is called the father of genetics?

Question-11. What is the trait that is transmitted from parents to their offspring called?

Question-12. What is the gene carrier structure responsible for the transmission of ancestral traits called?

Question-13. Where are chromosomes found?

Question-14. Who wrote the book On the Origin of Species?

Question-15. What is the number of chromosomes in the human gamete?

Question-16. What is the evolution of organisms by natural selection called?

Question-17. Who controls the hereditary traits?

Question-18. What is needed for caste origin?

Question-19. How many sex chromosomes are there in human?

Question-20. What is the difference between individuals of the same species called?

Question-21. In which of the following organisms is there more variation?

(a) Bird (b) Animal (c) Human (d) Insect

Question-22. Which of the following is similar to human?

(a) Bird (b) Dog (c) Chimpanzee (d) Cow

Question-23. What is the bird closely related to?

Question-24. Which chromosomes are there in flowers?

Question-25. What are the masculine-determining chromosomes in humans?

Question-26. On what basis is sex determination done in humans?

Question-27. What is the full name of DNA?

Question-28. In which organisms most of the variation is found?

Question-29. What is a genetic trait or trait that is clearly visible called?

Question-30. Name one animal in which sex determination is not genetic.

Question-31. What are the remains of extinct organisms found on the rocks of the earth called?

Question-32. What is the role of determinant of heredity in organisms?

Question-33. Which traits are not hereditary?

Question-34. There is physical variation.

Question-35. What is the preserved remains of living organisms called?

Question-36. How did the complex parts of living organisms arise?

Question-37. What is the name of the trait that appears between pairs of opposite traits in the first generation after crossbreeding?

Question-38. What is the name of the trait that is not visible from the pairs of opposite traits in the first generation after crossbreeding?

Question-39. Which of the following is a dominant trait?

(a) tall (b) midget (c) both tall and dwarf (d) none of these

Question-40. Which of the following is a recessive trait?

(a) tall (b) midget (c) both tall and dwarf (d) none of these

Question-41. Which vegetable was selected from wild cabbage?

(a) Cauliflower (b) Cabbage (c) Broccoli (d) All of these

Question-42. How did different types of vegetables develop from wild cabbage?

Question-43. When a new plant is produced by the hybridization of two plants having different characteristics, it is called?

Question-44. What is a hybridization experiment to study the inheritance of two pairs of opposite traits called?

Question-45. What is the characteristic phenotypic ratio of monohybrid hybridization?

Question-46. What is the description of the external shape and behavior of different organisms called?

Question-47. What is an unintentional change in the frequency of a gene called?

Question-48. What constitutes all the genes located in a population or population of a particular species?

Question-49. What is the generation resulting from the crossbreeding of two parents with different traits called?

Question-50. In crossbreed generations, dominant and recessive traits co-exist, but in subsequent generations, they become distinct, this is called?

Question-51. What is the phenotypic ratio of diploid hybridization?

Question-52. Which plant was first selected by Mendel for his experiment?

Question-53. Mendel's first progeny generation (F₁) plants were—

Question-54. What does Tt stand for in Mendel's experiment?

Question-55. What does tt stand for in Mendel's experiment?

Question-56. What does t represent in Mendel's experiment?

Question-57. Which type of seed plants were obtained in F generation by diploid hybridization?

Question-58. Which type of seed pea plants did Mendel choose for diploid hybridization?

Question-59. What did Mendel name two parent plants with opposite properties in his experiment?

Question-60. What is the meaning of F₁ generation.

Question-61. F₂ means generation.

Question-62. Which of the following is not an acquired quality?

(a) the ability to swim (b) the ability to fencing (c) the ability to speak a special language (d) the ability to reproduce

Question-63. Which of the following is a homologous part?

(a) Wings of bird and bat (b) Feet of bird and human (c) Feet of bird and reptile (d) None of these

Question-64. It is a homogeneous part.

Question-65. What are the wings of insects and wings of bats?

Question-66. What was the Earth's atmosphere like when life originated?

Question-67. Wings of birds and bats come under the category of which type of part?

Question-68. Name two main principles of biological evolution.

Question-69. Which continent of the world is considered to be the original origin of mankind?

Question-70. When are two organisms called the same species?

Question-71. The branch of biology in which the origin of living organisms and the history of their ancestors is studied is called