CBSE 12th Board Exam 2023 Biology Question Papers
#1
CBSE 10th Annual Exam 2023 Biology Question papers can be downloaded easily from the attachments.

Some sample questions that came for the exam are:

1. Which of the following seeds have remained alive for the longest period
(a) Phoenix dactylifera (b) Striga asiatica (c ) Mangifera indica (d) Yucca gigantea

2. Human settlement often leads to habitat loss which leads to fragmentation, forming smaller patches of habitats. Select the statements that describe how a small patch differs from a large patch of the same habitat.
(i) Invasive species will never be seen here.
(ii) Population of large animals decreases.
(iii) Biodiversity decreases.
(iv) Competition from surrounding habitats increases.
(a) (ii), (iii) and (iv) only
(b) (ii) and (iv) only
(c ) (i) and (iii) only
(d) (i), (ii) and (iii) only

3. (a) Explain the process of the development of a male gametophyte in an angiosperm.
(b) Why is it called a male gametophyte ?

4. Name and describe the steps involved in the technique widely used in forensics that serves as the basis of paternity testing in case of disputes.

5. Name a best known and most common autosomal aneuploid abnormality in human and write any two symptoms.

Detailed question paper can be had from the links below.


Attached Files
.pdf   CBSE 12th Board Exam 2023 Biology question paper 1.pdf (Size: 1.96 MB / Downloads: 170)
.pdf   CBSE 12th Board Exam 2023 Biology question paper 2.pdf (Size: 2.12 MB / Downloads: 180)
.pdf   CBSE 12th Board Exam 2023 Biology question paper 3.pdf (Size: 4.52 MB / Downloads: 169)
Reply



Possibly Related Threads…
Thread Author Replies Views Last Post
  CBSE 10th Board Exam 2025 Official Model Papers with Keys of all Languages mehar 1 881 09-28-2024, 01:42 PM
Last Post: mehar
  CBSE 10th Board Exam 2025 Social Science Official Model Question Papers with keys mehar 0 651 09-28-2024, 12:30 PM
Last Post: mehar
  CBSE 10th Board Exam 2025 Maths (Std) Official Model Question Papers with keys mehar 0 669 09-28-2024, 12:22 PM
Last Post: mehar
  CBSE 10th Board Exam 2025 Maths (Basic) Official Model Question Papers with keys mehar 0 332 09-28-2024, 12:03 PM
Last Post: mehar
  CBSE X Board Exam 2025 Computer Applications Official Model Question Paper with key mehar 0 325 09-28-2024, 11:56 AM
Last Post: mehar
  CBSE X Board Exam 2025 Science Official Model Question Paper with key mehar 0 409 09-27-2024, 02:06 PM
Last Post: mehar
  CBSE X Board Exam 2025 Home Science Official Model Question Paper with key mehar 0 230 09-27-2024, 01:55 PM
Last Post: mehar
  CBSE 10th Board Exam 2025 Hindi Course B Official Model Question Papers with keys mehar 0 364 09-27-2024, 01:41 PM
Last Post: mehar
  CBSE X Board Exam 2025 Hindi Course A Official Model Question Paper with key mehar 0 369 09-27-2024, 01:39 PM
Last Post: mehar
  CBSE X Board Exam 2025 English Communicative Official Model Question Paper with key mehar 0 730 09-27-2024, 01:37 PM
Last Post: mehar



Users browsing this thread:
1 Guest(s)

Powered By MyBB, © 2002-2024 Melroy van den Berg.
Disclaimer | About Us