Second Year Biology Chapter 18 Short Questions Online Preparation (Reproduction)

Online Short Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 18 Short Questions Preparation

  • Total Questions10

  • Available Sets6

Start Test Download PDF

Biology - 12th Class Biology Chapter 18 Short Questions Preparation

Question # 1

What is diplohaplontic life cycle? Give its types.

  • Ans 1: In sexual reproduction,plants have diplohaplontic life cycle with alternating diploid sporophyte and haploid gametophyte generations. its type are isomorphic generations and heteromorphic generations.
Submit

Prepare Complete Set Wise Questions For Chapter 4 "12th Class Biology Chapter 18 Short Questions Preparation "

12th Class Biology Chapter 18 Short Questions Preparation - Set 1

Question # 1

What is diplohaplontic life cycle? Give its types.

  • Ans 1: In sexual reproduction,plants have diplohaplontic life cycle with alternating diploid sporophyte and haploid gametophyte generations. its type are isomorphic generations and heteromorphic generations.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 2

Question # 1

What is seed dormancy?

  • Ans 1: It is special condition of rest, which enables an embryo to survive the long period of unfavorable environmental conditions such as water shortage or low temperature.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 3

Question # 1

Differentiate between isomorphic and heteromorphic generation.

  • Ans 1: Isomorphic:If gemetophtye and sporophyte generation are vegetatively and morphologically similar then they are called isomorphic generation.
  • Ans 2: Heteromorphic: Ifgametophyte and sporophyte generations are vegetatively and morphologically dissimilar then they are called heteromorphic generations
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 4

Question # 1

Give the function of interstitial cells of testis.

  • Ans 1: Interstitial cells produce testosterone. This hormone is essential for the successful production of sperms.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 5

Question # 1

Define seed dormancy. Write its signifance. Give Its importance.

  • Ans 1: it is special condition of rest, which enables an embryo to survive the unfavorable environmental conditions.
  • Ans 2: Its importance is that during this period of rest the embryo ceases its growth.
  • Ans 3: This is of great survival importance to the plant in that it prevents the dormant seeds from germinating in response to condition such as long spell of warmth in winter.
Submit

12th Class Biology Chapter 18 Short Questions Preparation - Set 6

Question # 1

State two methods of asexual reproduction in animals.

  • Ans 1: Binary fission is a method of asexual reproduction in which animals like amoeba. During binary fission nucleus elongates and then divides into two nuclei, at the same time cytoplasm divides and two daughter cells are formed.
  • Ans 2: Regeneration is another method of asexual reproduction in which missing part of the body which is separated from the main body part develops into a complete organism.
Submit

ic-science-white
Biology
18th Chapter

12th Class Biology Chapter 18 Short Questions

Here you can prepare 12th Class Biology Chapter 18 (Reproduction). Click the button for 100% free full practice.

Start Chapter 18 Preparation

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!