KCET Biology Answer Key 2023 (Available): Download PDF for all sets
Download here KCET Biology Answer Key 2023 for all question paper sets for the exam conducted on May 20, 2023.
KCET Biology Answer Key 2023: Day 1 Shift 1 of KCET 2023 is scheduled for the Biology paper. Its exam commenced at 10:30 AM and concluded by 11:50 PM. Candidates who opted for the PCB or PCMB streams can check the complete unofficial answer key here. This answer key is unofficial in nature while the official key by KEA is likely to be out by the last week of May 2023. It is important to note that the questions in all sets and subsets are the same and only their order is shuffled. Hence, the questions vs correct answers are directly provided below. Scroll through the list to find the respective question and its answer.
| Official answer key released: KCET Answer Key 2023 |
KCET Biology Answer Key 2023 by DR Academy
| KCET 2023 Biology Answer Key by DR Academy | KCET Set C-1 Biology Answer Key 2023 |
KCET 2023 Related Links
The following are the links you may find helpful regarding KCET 2023 exam:
| Result date | KCET Result Date 2023 |
| Best engineering colleges | KCET 2023: List of best engineering colleges in Karnataka as per NIRF ranking |
| Expected rank | KCET Expected Rank 2023 |
| Agricultural quota | KCET 2023 Agriculture Quota Practical Exam: Steps to Upload Documents |
| Marks-Wise Expected Rank Details | |
| For 160 marks | Expected Rank for 160 marks in KCET 2023 |
| For 150 marks | Expected Rank for 150 marks in KCET 2023 |
| For 140 marks | Expected Rank for 140 marks in KCET 2023 |
| For 130 marks | Expected Rank for 130 marks in KCET 2023 |
| For 120 marks | Expected Rank for 120 marks in KCET 2023 |
| For 100 marks | Expected Rank for 100 marks in KCET 2023 |
| For 80 marks | Expected Rank for 80 marks in KCET 2023 |
| For 60 marks | Expected Rank for 60 marks in KCET 2023 |
| For 40 marks | Expected Rank for 40 marks in KCET 2023 |
KCET Answer Key 2023 for Other Subjects
The answer keys for the other three subjects are also provided through the links below in a similar manner.
| Subject | Answer Key Link |
| Mathematics | KCET Mathematics Answer Key 2023 |
| Physics | KCET Physics Answer Key 2023 |
| Chemistry | KCET Chemistry Answer Key 2023 |
KCET Biology Answer Key 2023 with Questions (All Sets)
As stated above, as the questions remain the same across all sets and subsets, the questions and answers are added here so that you can cross-check your answers across any set.
Questions are added in ALPHBETICAL ORDER, instead of the shuffled orders in different sets.
| Sr. No. | Question | Unofficial Correct Answer |
| 1 | A flower has 10 stamens each having bilobed dithecous anther. If each microsporangium her 5 pollen mother cells, how many pollen grains would be produced by the flower? | 200 |
| 2 | According to David Tilman's long term ecosystem experiments, the total biomass in plots with more species shows, | Less variation from year-to-year |
| 3 | An example for hormone releasing IUD is | LNG-20 |
| 4 | Atrial Natriuretic Factor (ANF) acts as a | Vasoconstricter |
| 5 | Bamboo species flowers | Once in 12 years |
| 6 | Choose the incorrect statement with reference to Kangaroo rat. | uses minimal water to remove excretory products. |
| 7 |
Consider the following statements with reference so female reproduction system
Statement 1. The presence or absence of hymen not a reliable indicator of virginity or sexual experience. Statement 2. The sex of the foetus is determined by the father and not by the mother | Both the Statement I and Statement 2 are correct |
| 8 | Considering the stroke volume of an adult healthy human being is 70 ml. cardiac output in one hour from the following: | 30.24 lit/hour |
| 9 | During transcription the DNA strand with 3' 5' polarity of the structural gene always acts as a template because | Enzyme DNA dependent RNA polymerase always catalyse the polymerisation in 3-5' direction. |
| 10 | Eukaryotic genes are monocistrome but they are split genes because | Exons are interrupted by Introns. |
| 11 | Find out the correct match |
Disease - Ringworm
Pathegon - Fungus Main organ affected - Skin |
| 12 |
Find the correct statement.
(1) Generally a gene regulates a trait, but sometimes one gene has effect on multiple traits. (2) The trait AB-blood group of man is regulated by one dominant allele and another recessive allele. Hence it is co-dominant. | Statement (1) is correct. |
| 13 | Flame cells present in the members of platyhelminthes are specialized to perform | Osmoregulation and Excretion |
| 14 |
Four students were assigned a science project to find out the pollution levels of lakes in their surrounding. After analysing the quality of water samples, the BOD values were found as follows:
Which among the following water samples is highly polluted ? | 6 mg/L |
| 15 | From the following table, select the option that correctly characterizes various phases of menstrual cycle: |
Mensturation Phase - Regeneration of endometrium
Follicular phase - Follicular phase Luteal phase - Luteal phase |
| 16 |
From the following tools / techniques of genetic engineering, identify those which are required for cloning a bacterial gene in animal cells and choose the correct option:
I. Endonuclease II. Ligase III. tumefaciens IV. Microinjection V. Gene gun VI. Lysozyme VII Cellulase VIII. Electrophoresis | I, II, IV, VI, VIII |
| 17 | Function of contractile vacuole in Amoeba is | Excretion and osmoregegulation |
| 18 | 'Gene-mapping' technology was developed by | Sturtvent |
| 19 | Generally, bears avoid winter by undergoing | Hibernation |
| 20 | Histone proteins are positively charged because they are rich in basic aminoacid residues | Arginine and Lysine |
| 21 | Identify from the following a pair of better yielding semi dwarf varieties of rice developed in India. | Jaya and Ratna |
| 22 | Identify the correct option showing the relative contribution of different green house gases to the total global warming | CFC - 14%, CO2 - 60%, Methane - 20%, NO - 6%. |
| 23 | Identify the floral formula of plant belonging to potato family. | To be updated |
| 24 | Identify the incorrect statement regarding the flow of energy between various components of the food chain. | Green plants capture about 10% of the solar energy that falls on leaves. |
| 25 | Identify the option showing the correct labelling for p, q, r and s with reference to the conducting system of the human heart. | p - SAN, q - AVN, r - Bundle of His, s - Interventricular septum |
| 26 | Identify the symptoms of pneumonia. | Difficulty in breathing, fever, chills, cough, headache |
| 27 | In a population of 800 rabbits showing Hardy-Weinberg equilibrium, the frequency of recessive individuals was 0.16. What is the frequency of heterozygous individuals? | 0.84 |
| 28 | In Bryophyllum, the adventitious buds arise from | Notches in the leaf |
| 29 | In male heterogametic type of sex determination | Male parent produces dissimilar gametes. |
| 30 | In MOET technique fertilized eggs are transferred into surrogate mother in which of the following stage? | 8-32 celled stage |
| 31 | In one of the hybridisation experiments, a homozygous dominant parent and a homary recessive parent are crossed for a trait. (Plant shows Mendelian inheritance pattern) | Dominant parent trait appears in both F1 & F2 generations, recessive parent trait appear in only F2 generation. |
| 32 | In the female reproductive system, a tiny finger like structure which lies at the upper junction of the two labia minora above the urethral opening is called | Clitoris |
| 33 |
Match Column-1 with Column-II. Select the option with correct combination.
1. Standing state 2. Pioneer species 3. Detritivores 4. Standing crop p. Mass of living material at a given time. q. Amount of nutrients in the soil at a given time. r. Species that invade a bare area. S. Breakdown detritus into smaller particles. | 1-p, 2-r, 3-s, 4-q |
| 34 |
Match Column-1 with Column-II. Select the option with correct combination.
1. Bryophyta 2. Gymnosperm 3. Algae 4. Pteridophyta p. Pinus q. Adiantum r. Sphagnum S. Ectocarpus | 1-r, 2-p, 3-s, 4-q |
| 35 |
Match Column-1 with Column-II. Select the option with correct combination.
1. Hypertonic 2. Capillarity 3. Symport 4. Guttation p. Two molecules move in the same direction across the membrane q. External solution is more concentrated than cell sap r. Water loss in the form of droplets S. Ability of water to rise in thin tubes | 1-q, 2-s, 3-p, 4-r |
| 36 |
Match List-1 and List-If with respect to proteins and their functions and select the correct option
1 Collagen 2. Trypsin 3. Insulin 4. Antibody p. Fights infectious agents q. Hormone r. Enzyme s. Intercellular ground substance | 1-s, 2-r, 3-q, 4-p |
| 37 |
Match the following columns and choose the correct option:
1. Haemophilus influenzae 2. Entamoeba histolytica 3. Plasmodium falciparum 4. Wuchereria bancrofti p. Malignant malaria q. Elephantiasis r. Pneumonia s. Amoebiasis | 1-r, 2-s, 3-p, 4-q |
| 38 | MTPs are considered relatively safe during | First trimester |
| 39 | PCR is used for | DNA amplification |
| 40 | Primary endosperm nucleus is formed by fusion of | Two polar nuclei and two male gametes |
| 41 | Roquefort cheese is ripened by | Fungi |
| 42 | Select the correct statement from the following: | The first step in PCR is heating which is used to separate both the strands of gene of interest. |
| 43 | Select the correctly matched pair of organisms with their order. | Musa, domestica : Diptera |
| 44 | The complex formed by a pair of synapsed homologous chromosomes is called | Bivalent |
| 45 | The function of Typhlosole in earthworm is | Increasing the effective area of absorption in the intestine |
| 46 | The Lac-Operon model was elucidated by | Francois Jacob and Jaques Monad |
| 47 | The male sex accessory ducts include | Rete testis, vasa efferentia, epididymis and vas deferens |
| 48 | The toxic heavy metals from various industries which cause water pollution, normally have a density | more than 5 g/cm³ |
| 49 | The toxic substance 'haemozoin' responsible for high fever and chill, is released in which of the following diseases? | Malaria |
| 50 | The variety of Okra, Pusa Sawani is resistant to which of the following insect pests? | Shoot & Fruit borer |
| 51 | The vibrations from the ear drum are transmitted through ear ossicles to | Oval window |
| 52 | Toxicity of which micronutrient induces deficiency of iron, magnesium and calcium | Manganese |
| 53 | When the vascular cambium is present between the xylem and Aloem, then the vascular bundle is called, | Open |
| 54 | Which of the following is abbreviated as ZIFT? | Zygote Intra Fallopian Transfer |
| 55 | Which of the following statements is correct? | Female carrier for haemophilia may transmit the disease to sons. |
| 56 | Which of these is NOT a method to make host cells 'competent to take up DNA? | Elution |
| 57 | Which of these is NOT an example for Adaptive radiation? | Long-necked Giraffe |
| 58 | Which pair of the following cells in the embryo sac are destined to change their ploidy after fertilization? | Antipodals and synergids |
| 59 |
With reference to human sperm, match the List-I with List-II.
1. Head, 2. Acrosome, 3. Middle piece, 4. Tail p. Filled with enzyme, q. Contains mitochondria, r. Sperm motility, s. Contains haploid nucleus | 1-s, 2-p, 3-q, 4-r |
| 60 | With respect to Inbreeding, which among the following is not true? | Inbreeding decreases homozygosity. |
Also Read |
KCET Analysis and Question Paper 2023
Similarly, as for the answer keys, the subject-wise question paper and analysis links will be updated here after each shift.
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