With the help of labelled diagram only, show the different stages of embryo development in a dicot plant.
Show Hint
Solution and Explanation
Top Questions on Human Development
- Describe the different steps in the sexual mode of reproduction in the life cycle of a malarial parasite from the time of its initiation till where it is completed and ready to start a fresh cycle.
- CBSE CLASS XII - 2024
- Biology
- Human Development
- State with highest density of population:
- CBSE CLASS XII - 2024
- Geography
- Human Development
- Luteal phase/secretory phase
- CBSE CLASS XII - 2024
- Biology
- Human Development
- Why does endosperm development precede embryo development in angiosperm seeds? State the role of endosperm in mature albuminous seeds.
- CBSE CLASS XII - 2024
- Biology
- Human Development
- In a human female, the probability of an ovum to get fertilised by more than one sperm is impossible. Give reason.
- CBSE CLASS XII - 2024
- Biology
- Human Development
Questions Asked in CBSE CLASS XII exam
- Write the symptoms of malaria in human and explain what causes these symptoms.
- CBSE CLASS XII - 2024
- Environment
Read the following characteristics of retail trading carefully and choose the correct option:
I. This is concerned with the sale of goods directly to the consumers.
II. Most of the retail trading takes place in fixed establishments or stores.
III. It is formed by many middlemen, traders, and suppliers.
IV. Hawkers, street peddling, automatic vending machines, etc., are its examples.
- CBSE CLASS XII - 2024
- The Earth: Our Habitat
Read the programmes related to the proposed Bharatmala umbrella scheme carefully and choose the correct option:
I. Backward areas, religious and tourist places connectivity programme
2. To interconnect the four metropolitan cities of the country
3. To develop State roads in adjoining coastal areas
4. To connect non-major ports in coastal states
- CBSE CLASS XII - 2024
- Motions of the Earth
- If any land remains uncultivated for more than five years, then it falls in which of the following categories?
Write a user-defined function in Python named showGrades(S) which takes the dictionary
Sas an argument. The dictionaryScontains Name: [Eng, Math, Science] as key:value pairs.
The function displays the corresponding grade obtained by the students according to the following grading rules:
\[ \begin{array}{|c|c|} \hline \textbf{Average of Eng, Math, Science} & \textbf{Grade} \\ \hline \geq 90 & A \\ \hline < 90 \text{ but } \geq 60 & B \\ \hline < 60 & C \\ \hline \end{array} \]
Example: Consider the following dictionary: \[ S = \{\text{"AMIT"}: [92, 86, 64], \text{"NAGMA"}: [65, 42, 43], \text{"DAVID"}: [92, 90, 88]\} \] The output should be: \[ \text{AMIT} - B \\ \text{NAGMA} - C \\ \text{DAVID} - A \]- CBSE CLASS XII - 2024
- Commands and Requests