KCET 2021 Biology Answer Key – KEA has released the official KCET 2021 Biology Answer Key for A, B, C, D (1, 2, 3). Karnataka Examinations Authority (KEA) has released KCET 2021 Biology Answer Key, on the official website i.e. cetonline.karnataka.gov.in. Candidates can download the same directly from this page, in PDF format. The answer key for KCET 2021 Biology can be used to estimate probable score, by adding 1 mark for correct answers. However, there is no negative marking. Scroll below to check out the steps to download the KCET answer key, how to download the answer key, how to calculate marks and about question paper/answer key and much more.
Latest – KCET 2021 official answer key for Biology has been released. Download the PDFs given below.
KCET 2021 Result – Date and Details Here
KCET 2021 Biology Official Answer Key
Candidates can check the KCET 2021 official answer key for Biology from the below direct link.
|Subject||Official Answer Key|
Exam date – August 29, 2021
Release Date for Official Answer Key – 01 Sep 2021
Last date to Raise Objections – 04 Sep 2021 (5:30 pm)
Subject – Biology
KCET 2021 Biology Answer Key by BASE
BASE Coaching has released KCET 2021 answer key for biology. Check below.
KCET 2021 Biology Answer Key by D R Academy
D R Academy has released KCET 2021 answer key for biology. Check below.
|Institute||Answer key / Solutions|
|D R Academy||Download Here|
KCET 2021 Biology Answer Key
The below given questions and answers have been taken from various unofficial sources. Help us make this key better. Send your question paper at [email protected] or firstname.lastname@example.org. Also, to get more questions and answers, keep on refreshing this page.
Ques. Small mammals and birds are rarely found in polar regions. The reason is that
Ans. They have a larger surface area relative to their volume
Ques. Identify the correct statement(s) from the following:
1. Cuscata is a chlorophyllous endoparasite.
2. The human liverfluke needs only one host to complete its life cycle.
3. The lifecycle of endoparasites is more complex due to their extreme specialisation.
4. During the course of evolution, the host bird’s eggs have evolved the eggs of the parasitic bird.
Ans. Only 3
Ques. Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization?
Ans. Egg cell
Ques. Which of the following aquatic plant does not show pollination in water?
Ans. Water hyacinth
Ques. Identify the correct statement.
A. Only one megaspore is present towards chalazal and remains functional.
B. 3 megaspore present towards chalazal and degenerate gradually.
C. Each megaspore mother cell directly develops into a megaspore.
D. Each female gametophyte is a 7-celled & 7-nucleated structure.
Ans. Correct Option is (B)
Ques. How many microsporangia are located at the corners of a typical bilobed anther of gymnosperms and angiosperms is
Ques. Identify the incorrect statement/s.
A. Kinetin is a derivative of Adenine which is a pyrimidine.
B. The technique of decapitation is widely used in tea plantations.
C. Ethylene is a gaseous plant hormone.
D. Use of Ga2 hastens the maiting process in the brew industry.
E. Terpenes – IAA
Ans. Correct option is (E)
Ques. The enzyme that is not found in C3 plant is
Ans. PEP carboxylase
Ques. The correct sequence of events in prophase I is
Ans. Snapsis —> Crossing over —> Chiasmata —> Terminalisation
Ques. A bacterial flagellum is composed of
Ans. Filament, the hook and the basal body
Ques. The following type of cell junction is not found in animal tissues.
Ans. Loose Junction or Plasmodesmata
Ques. Epigynous flower is one of which
Ans. Ovary is inferior and other floral parts are superior
Ques. E.coli fully labelled with 15N is allowed to grow in a 14N medium. The two strands of DNA molecule of the first generation bacteria have.
Ans. Different density but do not resemble their parent DNA
Ques. In which region of the t-RNA molecule is the amino-acid binding site located?
Ans. 3 ′ end
Ques. Which of the following characters selected by Mendel in a pea plant is a recessive character?
Ans. White flower
Ques. Which of the possible blood groups of children whose parents are heterozygous for A & B blood groups?
Ques. The method of directly injecting sperm into ovum is called
Ques. Select the incorrect statement about contraceptives.
A. They are regular requirements for the maintenance of reproductive health.
B. They have a significant role in checking the uncontrolled growth of the population.
C. They are practices against natural reproductive events like conception or pregnancy.
D. The possible ill effects like nausea, abdominal pain, irregular menstrual bleeding or even breast cancer should not be totally ignored.
Ans. Correct option is (C)
Ques. Under the influence of oxytocin which layer of the uterus exhibits strong contractions during parturition?
Ques. Select the correct path for flow of milk during breastfeeding.
Ans. Mammary Tubule (T)—> Mammary duct (M) —> Ampulla (A) —> lactiferous duct (L)
Ques. α-1 antitrypsin is
Ans. an enzyme
Ques. Rapid antigen test and RT-PCR are the two diagnosis test for Covid-19 virus. PCR, a molecular diagnostic tool stands for
Ans. Polymerase chain reaction
Ques. Which of the following diagnostic tools allows the detection of very low concentration of bacterium or viruses by amplifying their nucleic acid?
Ques. Silencing of a gene could be achieved through the use
Ans. short interfering RNA and antisense RNA
Ques. Rop-gene which codes for the proteins involved in the replication of plasmid pBR322 in E.coli is located at restriction site of
Ques. The technology of biogas production was developed in India due to the efforts of
Ques. Which among the following products of microbe is not obtained from fungi?
Ans. Swiss Cheese
Ques. Taq polymerase that finds its application in PCR is obtained from
Ans. Thermus aquaticus
Ques. If the sequence of nucleotides in a strand of DNA is 31-ATGCTTCCGAAT-51. Write the sequence in the corresponding region of the transcribed r-DNA.
Ques. Which one of the following plants is a source of drug which is native to America?
Ans. Erythroxylum coca
Ques. Identify the technique useful in detecting the cancers of internal organs.
Ans. CT scan
Ques. Pneumonia is caused by which of the following?
A. Streptococcus pneumoniae
B. Haemophilus influenzae
C. Both (A) & (B)
D. None of the above
Ans. Streptococcus pneumoniae
Ques. Experiments involving use of radioactive thymidine to detect distribution of newly synthesised DNA in the chromosomes was performed on which plant?
A. Vicia faba
B. Pisum Sativum
C. Cocus nucifera
D. Anti Librium
Ans. Vicia faba
Ques. The development of quick immune response in a person infected with deadly microbes by administering preformed antibodies is
A. Active immunity
B. Cell-mediated immunity
C. Innate immunity
D. Passive immunisation
Ans. Passive immunisation
Ques. Which is the most feared property of malignant tumors?
Name of Exam – Karnataka CET 2021
Exam date – 28 Aug 2021
Timing – 10:30 am to 11:50 am
Subject – Biology
Maximum marks – 60
How to Use KCET 2021 Biology Answer Key to Calculate Score?
The KCET official answer key is an important entity, used for estimating the probable score, in the examination. Candidates also need the KCET question paper and response sheet to tally the responses in the key. The steps are as follows.
1st step: As the first step, you need to curate all of the above mentioned elements like KCET answer key, response sheet and question paper.
2nd step: Now, tally the question paper, answer key and answers in the KCET 2021 response sheet.
3rd step: After doing so, the students have to add 1 mark for correct answers and deduct 0 marks for incorrect answers.
4th step: At last, the sum of correct and incorrect answers is your probable score in the KCET 2021 examination.
Therefore the formula is: 1 X (number of correct answers) – 0 X (number of wrong answers)
How to Download the KCET 2021 Biology Answer Key?
Since, the KCET 2021 Biology Answer Key is released in online mode. The steps to download the answer key are as follows.
1st step: First of all, you need to click on the above given link.
2nd step: On doing so, the homepage opens up, thereafter, you need to search and click on the KCET 2021 Biology Answer Key.
3rd step: Next, the KCET 2021 Biology Answer Key appears on the screen in PDF format
What are the types of KCET 2021 Biology Answer Key?
The KCET 2021 answer key is categorised into 4 categories. The following is the explanation for the same.
Official Answer Key: This type of answer key is released on the KEA official website. Candidates can use the official KCET 2021 Biology Answer Key, to estimate their probable scores in the examination.
Unofficial Answer Key: The unofficial answer key for KCET, is released by the subject matter experts and coaching centers. Candidates can download the same, a few hours after the examination. However, this is for reference purposes only.
Provisional Answer Key: The KCET 2021 Biology Provisional Answer Key is published on the cetonline.karnataka.gov.in/kea. It is the official answer key, released by KEA. Candidates can also raise objections, if unsatisfied with any question or answer.
Final Answer Key: The final answer key for KCET 2022 Biology exam is released after the evaluation process. Candidates should note that they cannot raise any objection, against the same.
KCET 2021 Biology Question Paper
KEA, releases the KCET 2021 question paper on the official website i.e. cetonline.karnataka.gov.in. It is released along with the official KCET 2021 answer key only. The question paper consists of the code of subject, question code, alternatives and the marks for each question. Candidates can also use the KCET 2021 question paper, to prepare for the future examinations as well.
KCET 2021 Biology Response Sheet
The response sheet for KCET 2021 is released as the login of the candidates. To download the same, you need to login with their registration number. The KCET response sheet is defined as the OMR sheet, where the candidates have to mark their answers, during the KCET examination.
How to Raise an Objection in the KCET 2021 Biology Answer Key?
If the candidate feels unsatisfied with any answer or question in the KCET 2021 Biology Answer Key, then can raise a challenge against the same. As per last year’s information, there are 2 ways to submit your objections and they are as follows.
Through email: As per official notification, the candidates have to send the name of subject, version code and question number, along with the supporting documents to [email protected]. They can also send it via post to “Executive Director, Karnataka Examinations Authority, Bangalore”.
Through official website: Candidates can also submit their objections along with the proof supporting their claim on the KEA website. They have to submit information like version code and question number and name of subject.
KCET Biology Answer Key Archives
Candidates can download ast years KCET Bio answer key below.
- Click Here to download KCET 2019 Biology Official Answer Key.
- Click Here to download KCET 2018 Biology Official Answer Key.
Check and download KCET Biology Answer Key by Coaching Institutes from the table below:
|Coaching Institute||KCET Bio Answer Key (All Sets)|
|BASE||Click Here for Version Code C3|
|Expert Coaching||Click Here for Version Code B3|
|DR Academy||Click Here|
FAQ’s for KCET 2021 Biology Answer Key
Ans 1. The KCET 2021 Biology Answer Key is published in PDF format.
Ans 2. You can download the KCET 2021 Biology Answer Key directly from this page
Ans 3. The subject matter experts and coaching center releases unofficial KCET 2021 Biology Answer Key.
Ans 4. You can check the official answer key from cetonline.karnataka.gov.in
Ans 5. No, you have to submit the supporting document in support of the claim in KCET answer key 2021.
Official website: kea.kear.nic.in
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