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Two parallel metal plates having charges +Q and -Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will

Option: 1

Become zero


Option: 2

Increase


Option: 3

Decrease


Option: 4

Remain same


Among the following which one has the highest cation to anion size ratio?

Option: 1

CsI


Option: 2

CsF


Option: 3

LiF


Option: 4

NaF


Which one of the following statements in regard to the excretion by the human kidneys is correct?

Option: 1

Ascending limb of Loop of Henle is impermeable to electrolytes


Option: 2

Descending limb of Loop of Henle is impermeable to water


Option: 3

Distal convoluted tubule is incapable of reabsorbing HCO3


Option: 4

Nearly 99 percent of the glomerular filtrate is reabsorbed by the renal tubules


The permissible use of the technique amniocentesis is for:

Option: 1

Detecting any genetic abnormality


Option: 2

Detecting sex of the unborn foetus


Option: 3

Artificial insemination


Option: 4

Transfer of embryo into the uterus of a surrogate mother


Listed below are four respiratory capacities (i-iv) and four jumbled repiratory volmues of a normal human adult:

Respiratory capacities                                                 Respiratory volumes

(i) Residual volume                                                     2500mL

(ii) Vital capacity                                                         3500mL

(iii) Inspiratory reserve volume                                   1200mL

(iv) Inspiratory capacity                                              4500mL

which one of the following is the correct matching of two capacities and volumes?

Option: 1

(ii)  2500mL,         (iii) 4500mL


Option: 2

(iii) 1200mL,       (iv) 2500 mL


Option: 3

(iv) 3500mL,      (i) 1200mL


Option: 4

(i) 4500mL,            (ii) 3500mL


Which of the following conformers for ethylene glycol is most stable?

Option: 1


Option: 2


Option: 3


Option: 4


Common cold is not cured by antibiotics because it is

Option: 1

Caused by a Gram-negative bacterium


Option: 2

Not an infectious disease


Option: 3

Caused by a virus


Option: 4

Caused by a Gram-positive bacterium


Given below is the ECG of a normal human. Which one of its components is correctly interpreted below?

Option: 1

Peak P and Peak R together - systolic and diastolic blood pressures


Option: 2

Peak P - Initiation of left atrial contraction only


Option: 3

Complex QRS - One complete pulse


Option: 4

Peak T - Initiation of total cardiac contraction


The threshold frequency for a photosensitive metal is 3.3 x 1014 Hz. If light of frequency 8.2 x 1014 Hz is incident on this metal, the cut-off voltage for the photoelectric emission is nearly

Option: 1

5 V


Option: 2

1 V


Option: 3

2 V


Option: 4

3 V


The correct IUPAC name of the compound

 

Option: 1

3 - (1-ethyl propyl) hex - 1 ene


Option: 2

4 -Ethyl - 3 - propyl hex - 1 - ene


Option: 3

3-Ethyl - 4 - ethenyl heptane


Option: 4

3 - Ethyl - 4 - propyl hex - 5 - ene


Clemmensen reduction of a ketone is carried out in the presence of which of the following?

Option: 1

H2 and Pt as catalyst


Option: 2

Glycol with KOH


Option: 3

Zn-Hg with HCl


Option: 4

LiAlH4


Which one of the following helps in absorption of phosphorus from soil by plants ?

Option: 1

Anabaena


Option: 2

Glomus


Option: 3

Rhozobium


Option: 4

Frankia


Given below is an incomplete table about certain hormones, their source gland and one major effect of each on the body in humans. Identify the correct option for the three blanks A,B, and C.

GLAND

 SECRETION

EFFECT ON BODY
A Oestrogen

Maintenance of secondary sexual characters

Alpha Cells of Islets of Langerhans

 B

Raises blood sugar level

Anterior Pituitary

 C

Over secretion leads to giganistsm

 

Options :

                    A                    B                    C

 

Option: 1

Placenta                        Glucagon                Calcitonin


Option: 2

Ovary                            Glucagon                    Growth Hormone


Option: 3

Placenta                        Insulin                            Vasopressin


Option: 4

Ovary                            Insulin                                Calcitonin


Which one of the following is not considered as a part of the endomembrane system?

Option: 1

Golgi complex


Option: 2

Peroxisome


Option: 3

Vacuole


Option: 4

Lysosome


The opening of vagina is often converted partially by a membrane called 

Option: 1

Clitoris 


Option: 2

Mons pubis 


Option: 3

Hymen 


Option: 4

Labia minora 


Select the incorrect statement about external fertilisation:

Option: 1

Organisms showing external fertilisation produce a large number of male gametes only.

 


Option: 2

External fertilisation is very uncertain and requires synchrony between release of male and female gametes.


Option: 3

It is replaced by internal fertilisation in higher organisms as it wastes energy and requires external medium like water.

 


Option: 4

It occurs in most of the fishes and amphibians.


In flowering plants, male and female reproductive structures _______, ________ respectively 

Option: 1

Calyx, corolla 


Option: 2

Androecium and gynoecium 


Option: 3

Gynoecium and Androecium 


Option: 4

Androecium and Thallumus 


The mobility of a mature sperm is controlled by the mitochondria located in the 

Option: 1

Head 


Option: 2

middle piece 


Option: 3

Tail 


Option: 4

In all of them 


Pick up correct statements 

1) The vegetative cell is bigger in size 

2) The generative cell is small in size and float in cytoplasm of vegetative cell 

3) Generative cell has abundant food reserve 

4) Generative cell is spindle-shaped with dense cytoplasm and a nucleus  

Option: 1

1 , 2 only 


Option: 2

2 , 3 only 


Option: 3

1, 2 and 4 


Option: 4

1, 2, 3 and 4 


Zygote develops a thick wall that is resistant to desiccation and damage in 

Option: 1

Fungi 


Option: 2

Algae 


Option: 3

none of these 


Option: 4

All of these 


SSR and STR are also known as 

Option: 1

Microsatellite 


Option: 2

Macrosatellite 


Option: 3

VNTR 


Option: 4

either (a) and (c)


Identify A,B,C and D  in the given figure of E.coli cloning vector pBR322 and select the correct option 

Option: 1

A - Hindl               B - EcoRl                C - ampR                  D - ori


Option: 2

A - Hindl               B - BamHl                C - kanR                  D - ampR


Option: 3

A - BamHl               B - Pstl                C - ori                 D - ampR 


Option: 4

A - EcoRl             B - BamHl             C - ampR                  D - ori


An inheritance mutation in a population at high frequency , it is referred to as

Option: 1

RNA polymorphism


Option: 2

DNA inheritance


Option: 3

DNA polymorphism


Option: 4

None of these


A tobacco plant heterozygous for a recessive character is self-pollinated and 1200 seeds are subsequently germinated. How many seedlings would have the parental genotype ?

Option: 1

1250


Option: 2

600


Option: 3

300


Option: 4

2250


Stability of double helix structure of DNA is due to ,

Option: 1

The plane of one base pair stacks over the other in a double helix


Option: 2

Presence of -OH at 5' end.


Option: 3

Presence of nucleotide.


Option: 4

None of these


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