Karnataka 2nd PUC Biology Answer Key 2025 (Available): Check Unofficial PDF
Karnataka 2nd PUC Biology Answer Key is available here. Students can use it to calculate their estimated scores.
Karnataka 2nd PUC Biology Answer Key 2025: The Karnataka School Examination and Assessment Board will conduct the 2nd PUC Biology Paper examination on March 18, 2025. Candidates will be allowed to check the answer key prepared by subject matter experts. The 2nd PUC Answer Key 2025 will determine how many marks have been scored in that examination. Candidates should score 25 or more from a total of 70 to qualify. There is no question of negative marking in the Biology Paper. The 2025 Karnataka 2nd PUC Biology result will most likely be declared by mid-April.
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Karnataka 2nd PUC Biology Answer Key 2025
This space will be populated closer to the date of examination with the Karnataka 2nd PUC Biology Answer Key 2025. Here is the question-wise answer key for the subject:
| Questions | Answers |
| Ques 1 (i) "Pollen grains are well preserved as fossils" because of the presence of sporopollenin" as
Statement I: Sporopollenin is the most resistant organic material known |
(A) Both the Statements | and || are correct |
| Ques 1 (ii) The process of transformation of spermatids into sperms is called | (B) Spermiogenesis |
| Ques 1 (iii) Which one among the following is essential for the maintenance of endometrium and for the implantation of fertilized ovum? | (B) Progesterone |
| Ques 1 (iv) Select the one among the given that is a probable reason for explosive growth of population in India. | (c) Increase in the number of people in reproducible age |
| Ques 1 (v) Which one among the following is a contraceptive method that involves no medicine or device? | (D) Coitus interruptus |
| Ques 1 (vi) Which one among the following ART can be used to rectify if the infertility is due to low sperm count? | (D) IUI |
| Ques 1 (vii) Which one among the given is a symbol used in human pedigree analysis for consanguineous mating? | (B) |
| Ques 1 (viii) Which one among these represent the flow of genetic information? |
(C) DNA → mRNA → Protein |
| Ques 1 (ix) If the change in gene frequency occurs by chance, it is called |
(D) Genetic Drift |
| Ques 1 (x) Which is the test that can be suggested among the given for a patient with symptoms such as - sustained high fever (39°C - 40°C), weakness, stomach pain, constipation, headache and loss of appetite? |
(A) Widal Test |
| Ques 1 (xi) Which among the following is an enzyme modified by genetic engineering and used as "Clot buster"? |
(D) Streptokinase |
| Ques 1 (xii) In which method the plant cells are bombarded with high velocity microparticles of gold coated with DNA? |
(B) Biolistics |
| Ques 1 (xiii) The use of bioresources by multinational companies and other organisations without proper authorisation and compensatory payment is called as |
(C) Biopiracy |
| Ques 1 (xiv) In which of the processes given, the humus is degraded by some microbes and release of inorganic nutrients occur? |
(B) Mineralisation |
| Ques 1 (XV) Which one among these is an example for Ex-situ conservation? |
(A) Cryopreservation |
| Ques 2 (XVI) Few flowering plants have evolved a special mechanism to produce seeds without fertilization called------ |
Apomixis |
| Ques 2 (xvii) Single step large mutation is known as |
Saltation |
| Ques 2 (xviii) -----acts on uterine muscle and cause stronger contractions during parturition. |
Oxytocin |
| Ques2 (XIX) Members of genus----phosphorous from soil and supply it to the plant form mycorrhiza and absorb |
Glomus |
| Ques 2 (xx) The step in which bands of DNA are cutout and extracted from gel piece is termed as---- |
Elution |
Karnataka 2nd PUC Result 2025 Expected Date
The Karnataka 2nd PUC Biology result will be announced along with the results of the other subjects. However, the date of releasing the 2nd PUC result in 2025 has not yet been confirmed.
| Particualrs | Expected Date |
| 2nd PUC Result Expected Date 2025 | To be Added |
Students should keep checking the official Karnataka Pre-University website for updates regarding results announcements, answer keys, and further notifications.
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