Which one of the following statement about virus is correct?

(a)

Possess their own metabolic system

(b)

They are facultative parasites

(c)

They contain DNA or RNA

(d)

Enzymes are present

Identify the Archaebacterium.

(a)

Acetobacter

(b)

Erwinia

(c)

Treponema

(d)

Methanobacterium

Roots are ______.

(a)

Descending, negatively geotrophic, positively phototropic

(b)

Descending, positively geotrophic, negatively phototrophic

(c)

Ascending, positively geotrophic, negatively phototrophic

(d)

Ascending, negatively geotrophic, positively phototrophic

When the root is thick and fleshy, but does not taken a definite shape, it said to be _________

(a)

Nodulose root

(b)

Tuberous root

(c)

Monilliform root

(d)

Fasiculated root

Curcuma amada, Curcuma domestica, Asparagus, Maranta are example of __________

(a)

Tuberous root

(b)

Beaded root

(c)

Moniliform root

(d)

Nodulose root

Bryophyllum and Dioscorea are example for ______.

(a)

Foliar bud, apical bud

(b)

Foliar bud, cauline bud

(c)

Cauline bud, apical bud

(d)

Cauline bud, foliar bud

Vexillary aestivation is characteristic of the family _____.

(a)

Fabaceae

(b)

Asteraceae

(c)

Solanaceae

(d)

Brassicaceae

Aggregate fruit develops from _____.

(a)

Multicarpellary, apocarpous ovary

(b)

Multicarpellary, syncarpous ovary

(c)

Multicarpellary ovary

(d)

Whole inflorescence

A true fruit is the one where ______.

(a)

Only ovary of the flower develops into fruit

(b)

Ovary and calyx of the flower develops into fruit

(c)

Ovary, calyx and thalamus of the flower develops into fruit

(d)

All floral whorls of the flower develops into fruit

Specimen derived from non-original collection serves as the nomenclature type, when original specimen is missing. It is known as ________ .

(a)

Holotype

(b)

Neotype

(c)

Isotype

(d)

Paratype

Phylogenetic classification is the most favoured classification because it reflects _______.

(a)

Comparative Anatomy

(b)

Number of flowers produced

(c)

Comparative cytology

(d)

Evolutionary relationships

The taxonomy which involves the similarities & dissimilarities among the immune system of different taxa is termed as ______.

(a)

Chemotaxonomy

(b)

Molecular systematics

(c)

Serotaxonomy

(d)

Numerical taxonomy

Flowers are zygomorphic in ______.

(a)

Ceropegia

(b)

Thevetia

(c)

Datura

(d)

Solanum

The two subunits of ribosomes remain united at critical ion level of _______.

(a)

Magnesium

(b)

Calcium

(c)

Sodium

(d)

Ferrous

Many cells function properly and divide mitotically even though they do not have.

(a)

plasma membrane

(b)

cytoskeleton

(c)

mitochondria

(d)

plastids

Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statements is correct with respect to the movement of lipids and proteins from one lipid monolayer to the other.

(a)

Neither lipid nor proteins can flip-flop

(b)

Both lipid and proteins can flip flop

(c)

While lipids can rarely flip-flop proteins cannot

(d)

While proteins can flip-flop lipids cannot

If mitotic division is restricted in G1 phase of the cell cycle then the condition is known as _____.

(a)

S Phase

(b)

G2 Phase

(c)

M Phase

(d)

G0 Phase

Anaphase promoting complex APC is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in human cell, which of the following is expected to occur?

(a)

Chromosomes will be fragmented

(b)

Chromosomes will not condense

(c)

Chromosomes will not segregate

(d)

Recombination of Chromosomes will occur

The most basic amino acid is

(a)

Arginine

(b)

Histidine

(c)

Glycine

(d)

Glutamine

Refer to the given figure and select the correct statement.

i. A, B, and C are histogen of shoot apex
ii. A Gives rise to medullary rays.
iii. B Gives rise to cortex
iv. C Gives rise to epidermis

(a)

i and ii only

(b)

ii and iii only

(c)

i and iii only

(d)

iii and iv only

When a leaf trace extends from a vascular bundle in a dicot stem, what would be the arrangement of vascular tissues in the veins of the leaf?

(a)

Xylem would be on top and the phloem on the bottom

(b)

Phloem would be on top and the xylem on the bottom

(c)

Xylem would encircle the phloem

(d)

Phloem would encircle the xylem

The element which is not remobilized?

(a)

Phosphorous

(b)

Potassium

(c)

Calcium

(d)

Nitrogen

The compound which links glycolysis and Krebs cycle is _______.

(a)

Succinic acid

(b)

Pyruvic acid

(c)

Acetyl CoA

(d)

Citric acid

If the diameter of the pulley is 6 inches, length of pointer is 10 inches and distance travelled by pointer is 5 inches. Calculate the actual growth in length of plant.

(a)

3 inches

(b)

6 inches

(c)

12 inches

(d)

30 inches

Seed dormancy allows the plants to

(a)

overcome unfavourable climatic conditions

(b)

develop healthy seeds

(c)

reduce viability

(d)

prevent deterioration of seeds