In plants, lateral roots arise from 

(1) endodermis 

(2) epidermis 

(3) pericycle 

(4) hypodermis

If x^m yⁿ = (x + y)^{m + n} then dy/dx is equal to 

(1) xy

(2) y/x

(3) x +y/xy

(4) 0

Find the sequence of binding of the following aminoacyl t-RNA complexes during translation to m-RNA transcribed by a DNA segment having the base sequences 3’TACATGGGTCCG5′.

Choose the answer showing the correct order of alphabets. 

(1) C, D, B, A 

(2) A, B, D, C 

(3) D, C, A, B 

(4) B, A, D, C

A person who has allergy, the type of antibody produced in his body is 

(1) IgE 

(2) IgA 

(3) 1gM 

(4) IgG

A plant is provided with ideal conditions for photosynthesis and supplied with isotope ¹⁴CO₂. When the products of the process are analysed carefully, what would be the nature of products? 

(1) Both glucose and oxygen are normal 

(2) Both glucose and oxygen are labelled 

(3) Only glucose is labelled and oxygen is normal 

(4) Only oxygen is labelled but glucose is normal

What is the function of the enzyme ‘recombinase’ during meiosis? 

(1) Condensation of chromosomes 

(2) Formation of synaptonemal complex 

(3) Alignment of bivalent chromosomes on equatorial plate 

(4) Crossing over between non-sister chromatids 

Which is true regarding nitrogen? 

(1) Has low ionisation enthalpy 

(2) Ability to form pπ -pπ bonds with itself 

(3) Less electronegative 

(4) d-orbitals are available

Identify a micro-organism that can produces biomass of protein. 

(1) Methylophilus methylotrophus 

(2) Monoscus purpureus 

(3) Trichoderma polysporum 

(4) Aspergillus niger

Some of the events occur during life cycle of plasmodium are given below. Identify the correct statement. 

(1) Female mosquito take up sporozoites with blood meal 

(2) The sporozoites reproduce sexually in liver cells 

(3) When mosquito bites a man, gametocytes are injected 

(4) The gametocytes develop in RBC

Some desert beetles can survive on “metabolic water”, without ever drinking liquid water which 

(1) is a breakdown product of pyruvate inside the mitochondria, along with carbon dioxide 

(2) was produced as water in the organisms they eat 

(3) is a breakdown product from glycolysis in the cytoplasm 

(4) is absorbed from the air along with respiratory oxygen