11. Which one of the following cultivation is related to Floriculture?
[A] Cultivation of Vegetables and Fruits
[B] Cultivation and Study of Ornamental Flowers
[C] Cultivation of crops
[D] None of these
Show Answer
Correct Answer: B [Cultivation and Study of Ornamental Flowers]
Notes:
Floriculture in the branch of biology is related cultivation and Study of Ornamental Flowers.
12. Which of the following branch of biology deals with the study of behavioral aspects of animals?
[A] Myrmecology
[B] Palaeozoology
[C] Psychobiology
[D] Parazoology
Show Answer
Correct Answer: C [Psychobiology]
Notes:
Psychobiology is branch of biology which deals with the study of behavioral aspects of animals.
13. Who introduced the three kingdoms of classification?
[A] RH Whittaker
[B] Ernest Haeckel
[C] Copeland
[D] Carolus Linnaeus
Show Answer
Correct Answer: B [Ernest Haeckel]
Notes:
Plantae, Protista and Animalia are the three kingdom of Classification introduced by Ernest Haeckel.
14. Cell theory was formulated by __?
[A] Charles Darwin
[B] Theodor Schwann
[C] Robert Hooke
[D] Robert Koch
Show Answer
Correct Answer: B [Theodor Schwann]
Notes:
The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory. In the first part explains that all organisms are made up of cells. The second part explains that cells are the basic units of life. The third part, explains that cells come from preexisting cells that have multiplied. It was described by Rudolf Virchow in 1858.
15. Which of the following virus has its envelope from the host cell nucleus?
[A] Paramyxoviruses
[B] Retroviruses
[C] Orthomyxoviruses
[D] Herpesviruses
Show Answer
Correct Answer: D [Herpesviruses]
Notes:
The Herpesviridae are a large family of DNA viruses. It causes infections and some diseases in animals, including humans. Herpes viruses are divided into three groups: α herpesviruses, herpes simplex virus types 1 and 2.
16. To which plant kingdom does Wolffia belong?
[A] Angiosperms
[B] Gymnosperms
[C] Pteridophytes
[D] None of these
Show Answer
Correct Answer: A [Angiosperms]
Notes:
Wolffia belong to Angiosperms. Angiosperms are seed-bearing vascular plants that have a well-differentiated plant body. The seeds of angiosperms are enclosed within the fruit.
17. In bryophytes, antherozoids are__?
[A] Biflagellate
[B] Multiflagellate
[C] Sometimes biflagellate and sometimes multiflagellate
[D] Biflagellate in a few species and multiflagellate in the rest
Show Answer
Correct Answer: A [Biflagellate]
Notes:
Antheridium is a type of spherical male sex organ that produces dizygotic spermatozoa (antherozoid). Both flagellae are similar, apically fused, and are whiplash-type.
18. Which of the following is not a characteristic of gymnosperms?
[A] Parallel venation
[B] Perennial plants
[C] Distinct branches
[D] Xylem with vessels
Show Answer
Correct Answer: D [Xylem with vessels]
Notes:
The characteristics of gymnosperms: They do not produce flowers, Seeds are not formed inside a fruit, they are found in colder regions where snowfall occurs, they develop needle-like leaves, they are perennial or woody, forming trees or bushes, they are not differentiated into the ovary, style, and stigma.
19. What are the vegetative parts of a flower?
[A] Sepals
[B] petals
[C] Both 1 & 2
[D] None of these
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Sepals and petals are the vegetative parts of a flower.
20. Which of the following is the formation of male and female gametes?
[A] Gametogenesis
[B] Gamete transfer
[C] Megasporogenesis
[D] Microgametogensis
Show Answer
Correct Answer: A [Gametogenesis]
Notes:
Gametogenesis is the formation of male and female gametes while Gamete transfer brings the male and female gametes together.
