Question
(1) Column A (Asexual)Column B (Examples)
(1) Spore formation(a) Spirogyra
(2) Conidia formation(b) Yeast
(3) Fragmentation(c) Chlamydomonas
(4) Budding(d) Penicillium

Answer

(1) Column A (Asexual)Column B (Examples)
(1) Spore formation(c) Chlamydomonas
(2) Conidia formation(d) Penicillium
(3) Fragmentation(a) Spirogyra
(4) Budding(b) Yeast

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(1) Fishes(a) Trachea
(2) Birds/Reptiles(b) Moist cuticle
(3) Insects(c) Gills
(4) Earthworm(d) Lungs
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(1) Biosphere reserves(a) 448
(2) National parks(b) 14
(3) Wildlife sanctuaries(c) 90
Water body ASalinity values B
(1) Streams(a) 340 ppt
(2) Indian Ocean(b) 5 ppt
(3) Hyper saline lagoon(c) 30-35 ppt
(4) Dead sea(d) 100 ppt
Column AColumn B
(1) Walter Rosen(a) Popularisation of term biodiversity
(2) David Tillman(b) Rivet Popper Hypothesis
(3) Paul Ehrlich(c) Productivity Stability Hypothesis
(4) Edward Wilson(d) Coined
Waves recorded in ECGHeart activity
(1) P wave(a) Ventricular repolarization
(2) QRS complex(b) Atrial depolarization
(3) T wave(c) Isoelectric segment
(4) ST segment(d) Ventricular depolarization
Read the following and answer any four questions from (i) to (v) given below:
Priya was 4 years old when she contracted chicken pox. It took her around 15 days to recover completely. Now Priya is 5 years old, so her mother got her vaccinated few days back for DPT ($5^{th}$​​​​​​​ dose) as per immunisation program. Recently she was playing with her friend in the park when her friend accidently fell on iron pipe and badly bruised her knee. She was taken to the hospital where doctor gave her ATS injection and painkillers. Based on the above information, answer the following questions.
  1. Select the correct statement.
  1. Priya has developed natural active immunity against chicken pox.
  2. Priya has developed artificial active immunity against DPT.
  3. Priya's friend has developed artificial passive immunity against tetanus.
  4. All of these
  1. Which of the following do you think is an example of natural passive immunity?
  1. Administration of AGS (anti gas gangrene serum) in a person.
  2. Transfer of IgA antibodies from mother to baby through mother's milk.
  3. A person recovered from viral infection.
  4. A child vaccinated for polio.
  1. Which of the following is true for active immunity?
  1. It provides immediate relief.
  2. It is temporary, not long lasting
  3. It has no side effects.
  4. None of these
  1. Select the incorrect match.
  1. Passive immunity-IgG antibodies crossing placental barrier to reach fetus.
  2. Active immunity-Vaccination against corona virus.
  3. Active immunity-Administration of antidiphtheria serum in patient.
  4. Passive immunity-Fetus having mother's milk.
  1. Assertion: A person recovered from measles develops an active immunity against this infection.
Reason: In active immunity, person's own cells develop antibodies in response to infection.
  1. Both assertion and reason are true and reason is the correct explanation of assertion.
  2. Both assertion and reason are true, but reason is not the correct explanation of assertion.
  3. Assertion is true, but reason is false.
  4. Both assertion and reason are false.
Respiratory organsAlternative name
(1) Larynx(a) Lid of larynx
(2) Trachea(b) Air sacs
(3) Alveoli(c) Sound box
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Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two types of nucleic acids found in the living systems. DNA acts as the genetic material in most of the organisms. Although, RNA also acts as a genetic material in some organisms.
  1. In which of the following organisms, RNA acts as a genetic material?
  1. Escherichia coli
  2. $\text{Q}\beta$ Bacteriophage
  3. Tobacco Mosaic viruses
  4. Both (b) and (c)
  1. What is the reason for the additional stability of DNA in comparison to RNA?
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  2. Presence of uracil
  3. Presence of OH group
  4. Presence of deoxyribose sugar
  1. Which of the following criteria a molecule must fulfill to act as a genetic material?
  1. It should be able to generate its replica.
  2. It should be stable chemically and structurally.
  3. It should be able to express itself in the form of Mendelian character.
  4. All of these
  1. Assertion: RNA is liable and easily degradable.
Reason: The 2'- OH group present at every nucleotide in RNA is a reactive group
  1. Both assertion and reason are true, and reason is the correct explanation of assertion.
  2. Both assertion and reason are true, but reason is not the correct explanation of assertion.
  3. Assertion is true, but reason is false.
  4. Both assertion and reason are false.
  1. Read the given statement and select the option that correctly fill in the blanks. Pyrimidines present in DNA are (i) and (ii) while pyrimidines present in RNA are (iii) and (iv).
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  2. (i)-Cytosine (iii)Thymine (iii)-Cytosine, (iv)-Uracil
  3. (i)-Cytosine (iii)-Uracil (iii)-Adenine, (iv)-Guanine
  4. (i)-Cytosine (iii)-Uracil (iii)-Cytosine, (iv)-Thymine
Distinguish between: Morula and Blastula.