In light reaction, plastoquinone facilitates the transfer of electrons from
a.
PS-I to NADP+
b.
PS-I to ATP synthase
c.
PS-II to Cytb6f complex
Correct Answer
d.
Cytb6f complex to PS-I
Step-by-Step AI Explanation
Verified Method
In the electron transport chain of photosynthesis, plastoquinone (PQ) acts as an electron carrier that shuttles electrons from the cytochrome b6f complex to PS-II.
Q2mcq
The sequence that controls the copy number of the linked DNA in the vector, is termed
a.
Palindromic sequence
b.
Recognition site
c.
Selectable marker
d.
Ori site
Correct Answer
Step-by-Step AI Explanation
Verified Method
The 'Ori' (origin of replication) site is the DNA sequence where replication is initiated, and it is responsible for controlling the copy number of the DNA linked to the vector.
Q3mcq
The specific palindromic sequence which is recognized by EcoRI is
The restriction enzyme EcoRI specifically recognizes the palindromic sequence GAATTC/CTTAAG.
Q4mcq
Identify the wrong statement with reference to immunity.
a.
Active immunity is quick and gives full response.
Correct Answer
b.
Foetus receives some antibodies from mother, it is an example for passive immunity.
c.
When exposed to antigen (living or dead) antibodies are produced in the host’s body. It is called “Active immunity”.
d.
When ready-made antibodies are directly given, it is called “Passive immunity”.
Step-by-Step AI Explanation
Verified Method
Active immunity is typically slow as it requires time for the immune system to recognize antigens and produce antibodies, unlike passive immunity which provides immediate protection.
Q5mcq
Experimental verification of the chromosomal theory of inheritance was done by
a.
Boveri
b.
Morgan
Correct Answer
c.
Mendel
d.
Sutton
Step-by-Step AI Explanation
Verified Method
While Sutton and Boveri proposed the chromosomal theory, T.H. Morgan provided the experimental verification using Drosophila.
Q6mcq
Match the following concerning essential elements and their functions in plants: (a) Iron (i) Photolysis of water (b) Zinc (ii) Pollen germination (c) Boron (iii) Required for chlorophyll biosynthesis (d) Manganese (iv) IAA biosynthesis
Iron is required for chlorophyll biosynthesis, Zinc is required for IAA biosynthesis, Boron is involved in pollen germination, and Manganese is essential for the photolysis of water.
Q7mcq
In gel electrophoresis, separated DNA fragments can be visualized with the help of
a.
Acetocarmine in UV radiation
b.
Ethidium bromide in infrared radiation
c.
Acetocarmine in bright blue light
d.
Ethidium bromide in UV radiation
Correct Answer
Step-by-Step AI Explanation
Verified Method
Ethidium bromide stains DNA fragments, which then fluoresce orange under UV light.
Q8mcq
Name the enzyme that facilitates opening of DNA helix during transcription.
a.
DNA polymerase
b.
RNA polymerase
Correct Answer
c.
DNA ligase
d.
DNA helicase
Step-by-Step AI Explanation
Verified Method
RNA polymerase is responsible for transcription and is capable of unwinding the DNA helix to access the template strand.
Q9mcq
In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?
a.
ICSI and ZIFT
b.
GIFT and ICSI
c.
ZIFT and IUT
Correct Answer
d.
GIFT and ZIFT
Step-by-Step AI Explanation
Verified Method
ZIFT (Zygote Intrafallopian Transfer) and IUT (Intra Uterine Transfer) are techniques where embryos are transferred into the female body.
Q9mcq
In which of the following techniques, the embryos are transferred to assist those females who cannot conceive?
a.
ICSI and ZIFT
b.
GIFT and ICSI
c.
ZIFT and IUT
Correct Answer
d.
GIFT and ZIFT
Step-by-Step AI Explanation
Verified Method
ZIFT (Zygote Intra Fallopian Transfer) and IUT (Intra Uterine Transfer) are techniques where embryos are transferred into the female reproductive tract.
🎉 10 Free Sample Solutions Completed
Unlock All 105 Questions & Solutions
Sign up free in seconds to unlock step-by-step AI answers for the remaining 95 questions.
Match the organism with its use in biotechnology: (a) Bacillus thuringiensis, (b) Thermus aquaticus, (c) Agrobacterium tumefaciens, (d) Salmonella typhimurium.
a.
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
b.
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
c.
(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
d.
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option: (a) Floating Ribs, (b) Acromion, (c) Scapula, (d) Glenoid cavity. Column-II: (i) Located between second and seventh ribs, (ii) Head of the Humerus, (iii) Clavicle, (iv) Do not connect with the sternum.
a.
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
b.
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
c.
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
d.
(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option: (a) Gregarious, polyphagous pest, (b) Adult with radial symmetry and larva with bilateral symmetry, (c) Book lungs, (d) Bioluminescence.
a.
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
b.
(a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
c.
(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
d.
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I: (a) Gregarious, polyphagous pest (b) Adult with radial symmetry and larva with bilateral symmetry (c) Book lungs (d) Bioluminescence
Column-II: (i) Asterias (ii) Scorpion (iii) Ctenoplana (iv) Locusta
a.
(1) (iii) (ii) (i) (iv)
b.
(2) (ii) (i) (iii) (iv)
c.
(3) (i) (iii) (ii) (iv)
d.
(4) (iv) (i) (ii) (iii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The transverse section of a plant shows following anatomical features: (a) Large number of scattered vascular bundles surrounded by bundle sheath (b) Large conspicuous parenchymatous ground tissue (c) Vascular bundles conjoint and closed (d) Phloem parenchyma absent. Identify the category of plant and its part:
a.
Dicotyledonous stem
b.
Dicotyledonous root
c.
Monocotyledonous stem
d.
Monocotyledonous root
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I: (a) Bt cotton (b) Adenosine deaminase deficiency (c) RNAi (d) PCR
Column-II: (i) Gene therapy (ii) Cellular defence (iii) Detection of HIV infection (iv) Bacillus thuringiensis
a.
(1) (ii) (iii) (iv) (i)
b.
(2) (i) (ii) (iii) (iv)
c.
(3) (iv) (i) (ii) (iii)
d.
(4) (iii) (ii) (i) (iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I (a) Bt cotton (b) Adenosine deaminase deficiency (c) RNAi (d) PCR
Column-II (i) Gene therapy (ii) Cellular defence (iii) Detection of HIV infection (iv) Bacillus thuringiensis
a.
(1) (ii) (iii) (iv) (i)
b.
(2) (i) (ii) (iii) (iv)
c.
(3) (iv) (i) (ii) (iii)
d.
(4) (iii) (ii) (i) (iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following diseases with the causative organism and select the correct option.
Column-I (a) Typhoid (b) Pneumonia (c) Filariasis (d) Malaria
Column-II (i) Wuchereria (ii) Plasmodium (iii) Salmonella (iv) Haemophilus
a.
(1) (ii) (i) (iii) (iv)
b.
(2) (iv) (i) (ii) (iii)
c.
(3) (i) (iii) (ii) (iv)
d.
(4) (iii) (iv) (i) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following:
(a) Inhibitor of catalytic activity (i) Ricin
(b) Possess peptide bonds (ii) Malonate
(c) Cell wall material in fungi (iii) Chitin
(d) Secondary metabolite (iv) Collagen
a.
(1) (iii) (iv) (i) (ii)
b.
(2) (ii) (iii) (i) (iv)
c.
(3) (ii) (iv) (iii) (i)
d.
(4) (iii) (i) (iv) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?
(a) Darwin’s Finches of Galapagos islands. (b) Herbicide resistant weeds. (c) Drug resistant eukaryotes. (d) Man-created breeds of domesticated animals like dogs.
a.
(b), (c) and (d)
b.
only (d)
c.
only (a)
d.
(a) and (c)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?
(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals like dogs.
a.
(b), (c) and (d)
b.
only (d)
c.
only (a)
d.
(a) and (c)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the trophic levels with their correct species examples in grassland ecosystem.
(a) Fourth trophic level (i) Crow
(b) Second trophic level (ii) Vulture
(c) First trophic level (iii) Rabbit
(d) Third trophic level (iv) Grass
a.
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
b.
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
c.
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
d.
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
a.
(a), (b) and (d)
b.
only (d)
c.
(a) and (b)
d.
(c) and (d)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which of the following statements are true for the phylum-Chordata?
(a) In Urochordata notochord extends from head to tail and it is present throughout their life.
(b) In Vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla: Hemichordata, Tunicata and Cephalochordata.
a.
(a) and (b)
b.
(b) and (c)
c.
(d) and (c)
d.
(c) and (a)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Which of the following statements are true for the phylum-Chordata?
(a) In Urochordata notochord extends from head to tail and it is present throughout their life.
(b) In Vertebrata notochord is present during the embryonic period only.
(c) Central nervous system is dorsal and hollow.
(d) Chordata is divided into 3 subphyla : Hemichordata, Tunicata and Cephalochordata.
a.
(a) and (b)
b.
(b) and (c)
c.
(d) and (c)
d.
(c) and (a)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I | Column-II
(a) Placenta | (i) Androgens
(b) Zona pellucida | (ii) Human Chorionic Gonadotropin (hCG)
(c) Bulbo-urethral glands | (iii) Layer of the ovum
(d) Leydig cells | (iv) Lubrication of the Penis
a.
(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
b.
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
c.
(a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
d.
(a)-(i), (b)-(iv), (c)-(ii), (d)-(iii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I (a) Placenta (b) Zona pellucida (c) Bulbo-urethral glands (d) Leydig cells
Column-II (i) Androgens (ii) Human Chorionic Gonadotropin (hCG) (iii) Layer of the ovum (iv) Lubrication of the Penis
a.
(iii) (ii) (iv) (i)
b.
(ii) (iii) (iv) (i)
c.
(iv) (iii) (i) (ii)
d.
(i) (iv) (ii) (iii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 10^9 bp, then the length of the DNA is approximately
a.
2.2 meters
b.
2.7 meters
c.
2.0 meters
d.
2.5 meters
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column - I (a) Eosinophils (b) Basophils (c) Neutrophils (d) Lymphocytes
Column - II (i) Immune response (ii) Phagocytosis (iii) Release histaminase, destructive enzymes (iv) Release granules containing histamine
a.
(i) (ii) (iv) (iii)
b.
(ii) (i) (iii) (iv)
c.
(iii) (iv) (ii) (i)
d.
(iv) (i) (ii) (iii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The plant parts which consist of two generations - one within the other
(a) Pollen grains inside the anther
(b) Germinated pollen grain with two male gametes
(c) Seed inside the fruit
(d) Embryo sac inside the ovule
a.
(c) and (d)
b.
(a) and (d)
c.
(a) only
d.
(a), (b) and (c)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option.
Column-I (a) 6-15 pairs of gill slits (b) Heterocercal caudal fin (c) Air Bladder (d) Poison sting
Column-II (i) Trygon (ii) Cyclostomes (iii) Chondrichthyes (iv) Osteichthyes
a.
(iv) (ii) (iii) (i)
b.
(i) (iv) (iii) (ii)
c.
(ii) (iii) (iv) (i)
d.
(iii) (iv) (i) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
Match the following columns and select the correct option:
Column-I: (a) Organ of Corti, (b) Cochlea, (c) Eustachian tube, (d) Stapes
Column-II: (i) Connects middle ear and pharynx, (ii) Coiled part of the labyrinth, (iii) Attached to the oval window, (iv) Located on the basilar membrane
a.
(1) (iv) (ii) (i) (iii)
b.
(2) (i) (ii) (iv) (iii)
c.
(3) (ii) (iii) (i) (iv)
d.
(4) (iii) (i) (iv) (ii)
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals.
a.
Calcium
b.
Potassium
c.
Iron
d.
Copper
Correct Answer & Step-by-Step Solution Locked
Sign in free to reveal the correct answer and AI explanation for this question.
