Class 12th Biology 2012 Set3 Delhi Board Paper Solution
Question 6
Mention the unique feature with respect to flowering and fruiting in bamboo species.
Answer
Bamboo species flower only once in their lifetime.
Popular Questions of Class 12th biology
- Q:- What is spermatogenesis? Briefly describe the process of spermatogenesis.
- Q:- Why is reproduction essential for organisms? Answer
- Q:- Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals. - Q:- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.
- Q:- What is DNA fingerprinting? Mention its application.
- Q:- What is oogenesis? Give a brief account of oogenesis.
- Q:- Describe the structure of a seminiferous tubule.
- Q:- What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.
- Q:- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- Q:- Explain the Law of Dominance using a monohybrid cross.
Recently Viewed Questions of Class 12th biology
- Q:- If a marine fish is placed in a fresh water aquarium, will the fish be able to survive? Why or why not?
- Q:- Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?
- Q:- Discuss with your teacher what does a suitable gene means, in the context of DNA vaccines.
- Q:- How many eggs are released by a human ovary in a month?
How many eggs do you think would have been released if the mother gave birth to identical twins?
Would your answer change if the twins born were fraternal? - Q:- Write two major functions each of testis and ovary.
- Q:- What is the major advantage of producing plants by micropropagation?
- Q:- What are the various public health measures, which you would suggest as safeguard against infectious diseases?
- Q:- Suggest some methods to assist infertile couples to have children.
- Q:- If a double stranded DNA has 20 per cent of cytosine, calculate the per cent of adenine in the DNA.
- Q:- How did Hershey and Chase differentiate between DNA and protein in their experiment while proving that DNA is the genetic material?