______ is a berry shaped duster of cells.

(a)

Blastula

(b)

Gastrula

(c)

Morula

(d)

Zygote

Statement (1): Menstrual cycle occurs once in every 29 days.
Statement (2): The average age of menopause is 45-50 years.

(a)

Statement 1 is correct; statement 2 is incorrect

(b)

Statement 1 is incorrect; statement 2 is correct

(c)

Both the statements 1 and 2 are correct

(d)

Both the statements 1 and 2 are incorrect.

Identify the correct statement.

(a)

Lactational amenorrhea is a permanent birth control method

(b)

Condoms are made of polyethylene glycol and lambskin

(c)

LNG -20 is a copper-releasing IUD

(d)

Diaphragm covers the cervix there by preventing sperm entry

Which of the following symbol is used in pedigree analysis to represent unspecified sex?

(a)

(b)

(c)

(d)

How many structural genes are located in lac operon of E.Coli?

(a)

4

(b)

3

(c)

2

(d)

1

Assertion (A): Oparin used the term coacervates
Reason (R): Coacervates are colloidal particles in aqueous environment

(a)

Both A and R are incorrect

(b)

Both A and R are correct

(c)

Both A and R are correct. R explains A.

(d)

A is correct R is incorrect

Biofertilizers are not involved in this process

(a)

increase water holding capacity of soil

(b)

Help to degrade pollutants

(c)

Provide nutrients

(d)

Improve soil texture

Which body of the Government of India regulates GM research and safety of introducing GM organism for public services?

(a)

Bio-safety committee

(b)

Indian Council of agricultural research

(c)

Genetic engineering approval committee

(d)

Research committee on Genetic manipulation

People who have migrated from the planes to an area adjoining Rohtang Pass about six months back

(a)

Have more RBC's and their haemoglobin has a lower binding affinity to O₂

(b)

Are not physically fit to play games like football

(c)

Suffer from altitude sickness with symptoms like nausea, fatigue, etc.

(d)

Have the usual RBC count but then haemoglobin has very high binding affinity to O₂.

Statement 1: Biodiversity is the assemblage of different life form.
Statement 2: The term biodiversity was introduced by Edward Wilson.

(a)

Statement 1 is correct, statement 2 in incorrect

(b)

Statement 1 is incorrect, statement 2 in correct

(c)

Both the statements are correct

(d)

Both the statements are incorrect

In anatropous ovule, the micropyle faces __________________

(a)

Right side

(b)

Left side

(c)

Upward

(d)

Downward

In Mendel’s experiments with garden pea, round seed shape (RR) was dominant over wrinkled seeds (rr), yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected phenotypes in the F₂ generation of the cross RRYY x rryy?

(a)

Only round seeds with green cotyledons

(b)

Only wrinkled seeds with yellow cotyledons

(c)

Only wrinkled seeds with green cotyledons

(d)

Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons

In case of co-dominance, monohybrid F ₁ __________ is 1: 2: 1

(a)

Genotype ratio

(b)

Phenotype ratio

(c)

Both genotype & Phenotype ratio

(d)

Ratio is wrong

Which of the following sentences are correct?
1. The offspring exhibit only parental combinations due to incomplete linkage
2. The linked genes exhibit some crossing over in complete linkage
3. The separation of two linked genes are possible in incomplete linkage
4. Crossing over is absent in complete linkage

(a)

1 and 2

(b)

2 and 3

(c)

3 and 4

(d)

1 and 4

Which one of the following ploidy is irrelevant to others?

(a)

Monosomy

(b)

Trisomy

(c)

Tetrasomy

(d)

Pentasomy

Number of base pairs does pBR 322 plasmid contains ______

(a)

322

(b)

4322

(c)

4361

(d)

3264

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is ______.

(a)

10 to 30 minutes and 125° C

(b)

15 to 30 minutes and 121° C

(c)

15 to 20 minutes and 125° C

(d)

10 to 20 minutes and 121° C

The enzymatic mixture for chemical isolation of protoplast is

(a)

0.5% macrozyme, 2% onozuka cellulase, 13% mannitol

(b)

1.5% macrozyme, 0.5% onozuka cellulase, 12% sorbitol

(c)

2% macrozyme, 0.5% onozuka cellulase, 13% sorbitol

(d)

0.1% macrozyme, 2% onozuka cellulase, 15% mannitol

Match the following and choose the correct combination from the options given below:

Column I (Interaction)	Column II (Examples)
I. Mutualism II. Commensalism III. Parasitism IV. Predation V. Amensalism	i) Trichoderma and Penicillium ii) Balanophora, Orobanche iii) Orchids and Ferns iv) Lichen and Mycorrhiza v) Nepenthes and Diaonaea

(a)

I	II	III	IV	V
i	ii	iii	iv	v

(b)

I	II	III	IV	V
ii	iii	iv	v	i

(c)

I	II	III	IV	V
iii	iv	v	i	ii

(d)

I	II	III	IV	V
iv	iii	ii	v	i

Assertion (A): Pyramid of energy is upright.
Reason (R): During the energy transfer at successive trophic levels from producers there will be a gradual decrease

(a)

Both A and R are wrong

(b)

A is right R is wrong

(c)

R explains A

(d)

A is right R is not the correct explanation for A

Assertion (A): Ozone acts as a natural sunblock.
Reason (R): UV rays reaching the earth are deviated from earth.

(a)

A is correct R is incorrect.

(b)

A is incorrect R is correct.

(c)

R explains A.

(d)

Both A and R are incorrect.

Tamarindus indica is indigenous to _____.

(a)

Tropical African region

(b)

South India, Sri Lanka

(c)

South America, Greece

(d)

India alone

Given below are the plant species and their parts used. Which is the incorrect pair(s)?
(i) Cajanus cajan : Seeds
(ii) Anacardium occidentale: nuts
(iii) Borassus flabellifer: Endosperm
(iv) Capsicum annum: leaves

(a)

 i and ii  

(b)

 ii and iii

(c)

iii only

(d)

 iv only

Choose the wrong option

(a)

Lymphocytes are a type of WBC

(b)

They form 20-30% of WBC

(c)

The B lymphocytes leave the bone marrow before maturity

(d)

B Cells can form memory cells.

______ is a secondary lymphoid organ found in pharynx.

(a)

Adenoid

(b)

Tonsils

(c)

Thymus

(d)

Spleen