Class 12th Biology 2014 Set1 Delhi Board Paper Solution
Question 7
Identify 'a' and 'b' in the figure given below representing proportionate number of major vertebrate taxa.
Answer
In the given figure, a represents amphibians and b represents mammals.
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:- Describe the structure of a seminiferous tubule.
- Q:- What is oogenesis? Give a brief account of oogenesis.
- 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:- A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?
- Q:- Amniocentesis for sex determination is banned in our country. Is this ban necessary? Comment.
- Q:- What is point mutation? Give one example.
- Q:- Explain what is meant by metastasis.
- Q:- Describe the post-fertilization changes in a flower.
- Q:- Draw a well-labelled diagram of an antibody molecule.
- Q:- What is primary productivity? Give brief description of factors that affect primary productivity.
- Q:- Can we call human evolution as adaptive radiation?
- Q:- Which part of the plant is best suited for making virus-free plants and why?
- Q:- What are chasmogamous flowers? Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.