A. Static concept
B. Biological concept
C. Typological concept
D. Genetic concept

Answer: Option C

2. Artificial system of classification classifies plants on the basis of-

A. One or two characters
B. Phylogenetic trends
C. Many naturally existing characters
D. None of the above

Answer: Option A

3. The term new systematics was introduced by –

A. Linnaeus
B. Bentham
C. Hutchinson
D. Huxley

Answer: Option D

4. Group of organisms that closely resemble each other and freely interbreed in nature, constitute a –

A. Species
B. Genus
C. Family
D. Taxon

Answer: Option A

5. ICBN was first revised in –

A. 1961
B. 1964
C. 1975
D. 1753

Answer: Option C

A. assembly
B. functionalization
C. conformation
D. disassembly

Answer: Option D

Explanation: Catabolism refers to the disassembly of complex molecules to form simpler products. Catabolism hence serves two roles: providing raw materials for synthesis of products and making chemical energy available for survival of a cell.

2. Energy released by catabolic pathways is stored in how many forms?

A. 5
B. 2
C. 3
D. 4

Answer: Option B

Explanation: Explanation: Energy released by catabolic pathways is stored primarily in two forms: high energy phosphates like adenosine triphosphate and high energy electrons (NADPH).

3. The TCA cycle occurs in which region of a prokaryotic cell?

A. cytosol
B. mitochondria
C. ribsomes
D. golgi complex

Answer: Option A

Explanation: There are two stages in the catabolism of glucose namely glycolysis which occurs in the cytosol and tricarboxylic acid (TCA) cycle which occurs in the cytosol of prokaryotes and mitochondria of eukaryotes.

4. Who proposed that plant embryo arose from a single cell?

A. Matthias Schleiden
B. Theodor Schwann
C. Robert Hooke
D. Pasteur

Answer: Option A

Explanation: In 1838, German lawyer turned botanist Matthias Schleiden, proposed that plants were made of cells and that plant embryo arose from a single cell. Theodor Schwann, his colleague later proposed the cell theory.

5. Which cells are found in the intestinal lining?

A. Neurons
B. Epithelial cells
C. Hepatocytes
D. RBCs

Answer: Option B

Explanation: Epithelial cells line the intestine and are responsible for the uptake and absorption of nutrients from the digestive tract. Microvilli are located at the apical end of these cells and mitochondria are located at the basal end.

A. Morgan
B. Mendel
C. Watson
D. Bateson

Answer: Option B

2. The alternate form of a gene is

A. Alternate type
B. Recessive character
C. Dominant character
D. Allele

Answer: Option D

3. The smallest unit of genetic material which produces a phenotypic effect on mutation is

A. Muton
B. Gene
C. Recon
D. Nucleic acid

Answer: Option C

4. The tendency of population to remain in genetic equilibrium may be disturbed by

A. Random mating
B. Lack of migration
C. Lack of mutations
D. Lack of random mating

Answer: Option D

5. A baby has been born with a small tail. It is the case exhibiting

A. atavism
B. mutation
C. retrogressive evolution
D. metamorphosis

Answer: Option A

A. The embryo needs food
B. It softens the seed coat
C. It is necessary for photosynthesis
D. It is not a necessary part of the seed

Answer: Option A

2. If is was a wet year the tree rings would be wide. This is because the tree produced more_____________.

A. Roots
B. Phloem
C. Xylem
D. Bark

Answer: Option C

3. Where in the plant does photosynthesis occur?

A. Stem
B. Leaves
C. Roots
D. Xylem

Answer: Option B

4. What structure is labeled with B?

A. Cotyledon
B. Seed coat
C. Embryo
D. Stem

Answer: Option C

5. Where does carbon dioxide enter a plant

A. Stoma
B. Root
C. Stem
D. Flower

Answer: Option A

A. lipid
B. fibrous protein
C. globular protein
D. carbohydrates

Answer: Option B

2. Which of the following are NOT cold-blooded?

A. fish
B. amphibians
C. mammals
D. reptiles

Answer: Option C

3. Which reptile does NOT lay eggs?

A. buffalo
B. alligatur
C. cardinal
D. garter snake

Answer: Option D

4. Basement membrane is made up of a)

A. No cell product of epitheliai cell
B. Epitheliai cell only
C. Epidermal cell
D. Both b and c

Answer: Option A

5. Aerolar Conective tissue joins

A. Haemoglobin
B. Acini
C. Graffian follicle
D. Histamine

Answer: Option D

A. NAA
B. 2,4-D
C. Benzaldehyde
D. Ethylene

Answer: Option D

2. Substances which originate at the tip of stem and control growth elsewhere are

A. Enzymes
B. Hormones
C. Vitamins
D. None of the above

Answer: Option B

3. The maximum growth phase is

A. Lag phase
B. Steady phase
C. Log Phase
D. Senescent phase

Answer: Option C

4. Flowers with both androecium and gynoecium are called

A. Bisexual flowers
B. Anther
C. Stamens
D. Unisexual flowers

Answer: Option A

5. Embryo sac is located inside the

A. Stigma
B. Ovule
C. Micropyle
D. Style

Answer: Option B

A. Primary sex organ
B. Accessory sex organ
C. Secondary sex organ
D. None of the above

Answer: Option C

2. Accessory sex character is

A. Beard
B. Breast
C. Moustache
D. All the above

Answer: Option D

3. Number of sperms present in a single ejaculation of semen contains

A. 10000
B. 1000000-1000,000
C. 30-40 million
D. 300-400 million

Answer: Option D

4. Menstrual cycle is controlled by

A. Oestrogen and progesterone of ovary
B. FISH and LH of pituitary
C. Both 1 and 2
D. FSH of pituitary

Answer: Option C

5. Mesovarium is peritoneal covering of

A. Ovary
B. Testis
C. Kidney
D. Liver

Answer: Option A

A. Nekton
B. Plankton
C. Benthos
D. both (1) and (2)

Answer: Option C

2. In thermal stratification, the middle region which shows vertical temperature change is called

A. Mesolimnion
B. Epilimnion
C. Metalimnion
D. Hypolimnion

Answer: Option B

3. A relatively dense layer of band which is found in the thermosphere is known as?

A. Troposphere
B. Mesosphere
C. Stratosphere
D. Ionosphere

Answer: Option D

4. Actively moving organism in aquatic ecosystem

A. Benthos
B. Phytoplankton
C. Zoo plankton
D. Nekton

Answer: Option D

5. Plant species having a wide range of genetical distribution evolve into a local population known as

A. Ecotype
B. Biome
C. Ecosystem
D. Population

Answer: Option A

A. Fermentation of beer
B. Biopesticide
C. Antibiotic
D. None of the above

Answer: Option B

2. Before antibiotics, the first commercial antibacterial available was _____

A. Penicillin
B. Prontosil
C. Azithromycin
D. None of the above

Answer: Option B

3. Carcinoma refers to:

A. Malignant tumours of the colon
B. Malignant tumours of the skin or mucous membrane
C. Malignant tumours of the connective tissue
D. Benign tumours of the connective tissue

Answer: Option B

4. The most common fungal partners of mycorrhiza are ______ species.

A. Azotobacter
B. Glomus
C. Azolla
D. Frankia

Answer: Option B

5. What is the common name of Drosophila melanogaster?

A. Fruit fly
B. Roundworm
C. Zebrafish
D. Chlamydia

Answer: Option A

A. A variety of rice grown along the yellow river in China
B. Long stored rice having yellow colour tint
C. A transgenic rice having gene for – carotene
D. Wild variety of rice with yellow coloured grains

Answer: Option C

2. In RNAi, genes are silenced using:

A. ss DNA
B. ds DNA
C. ds RNA
D. ss RNA

Answer: Option C

3. The first clinical gene therapy was done for the treatment of:

A. AIDS
B. Cancer
C. Cystic fibrosis
D. SCID (Servere Combined Immuno Deficiency resulting form deficiency of ADA)

Answer: Option D

4. ADA is an enzyme which is deficient in a genetic disorder SCID. What is the full form of ADA?

A. Adenosine deoxy aminase
B. Adenosine deaminase
C. Aspartate deaminase
D. Arginine deaminase

Answer: Option B

5. Silencing of a gene could be achieved through the use of:

A. short interfering RNA (RNAi)
B. antisense RNA
C. by both
D. none of the above

Answer: Option C