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

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

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

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

Number of base pairs does pBR 322 plasmid contains ______

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

Identify the correct statement.

Which one of the following ploidy is irrelevant to others?

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

In anatropous ovule, the micropyle faces __________________

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

The enzymatic mixture for chemical isolation of protoplast is

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

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

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

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

Biofertilizers are not involved in this process

______ is a berry shaped duster of cells.

______ is a secondary lymphoid organ found in pharynx.

Choose the wrong option

Tamarindus indica is indigenous to _____.

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

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

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

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?