Biological Science Model Test - 2017 - IIT JAM

The structure of myoglobin is

During photosynthesis, ATP synthesis takes place in -

Photophosphorylation was discovered by -

Angle A is larger than angle C and smaller than angle B by the same amount. In ΔABC If angle B = 67º, angle C is _____

A culture of mycobacterium leprae was subjected to alkaline ethanol extraction prior to acid fast staining. The colour of culture of following staining will be ______

In cell membrane transport activities are carried by -

In a Eukaryotic gene. One of the introns is mutated at the 3’ end as shown :
Normal : AGGGCATTAGC
Mutant : AGGGCTTTGC

Which of the following processes in this mutation most likely to affect ?

Which of the following types of information can't be determined from the traditional Northern blotting technique ?

A bell is rung before giving bread to a dog. After doing this continuously for 12 days, which of the following is most likely to happen

The circadian rhythm is regulated by which hormone in higher animals?

Which of the following is the characteristic of allopatric speciation?

Agrobacterium rhizogenes can be used to genetically engineer plants because of which of the following statement ?

Which of the following virus is not used as gene therapy vectors ?

Independent assortment of genes occur due to the orientation of chromosomes at ______

The following pedigree of a particular rare trait depicts which of the following mode of inheritance of the gene ?

A microscopic unicellular is observed to have the following characteristics a flagellum, chloroplasts, a food gullet, a nucleus, mitochondria. This organism belongs to which kingdom ?

The biological clock in higher vertebrates is regulated by _______

Proteins are separated in SDS- electrophoresis on the basis of their ______

What is the advantage of probing a transcription with mRNAs bound to ribosomes ?

A population of Proliferating cells is stained with a DNA binding fluorescence dye so that the amount of fluorescence is directly proportional to the quantity of DNA. Amount of DNA in each cell is measured by flow cytometry. The number of cells with a given DNA content is plotted and following statement were made.

(1) Peak A contains the cells of G₀ phase
(2) Peak B contains the cells of G₁ phase
(3) Peak A contains the cells of G₁ phase
(4) Peak B contains the cells of G₂ phase

Which of the above mentioned statement is correct ?

A dsDNA cleaved with ECORI, producing a 5.4 kb band on a gel. A 5.4 kb band was also observed when the plasmid, was cleaved with Hind III. Cleaving the plasmid with both enzymes simultaneously resulted in a single band 2.7 kb in size.

Based on above information which of the following statement is incorrect?

A graph plotted between log_e (T₂ – T₁) and time t, the nature of graph is :

In a cross 50% red and 50% white flowered hybrids are got. So what was the genotype of its parents ?

The premature termination of polypeptide synthesis due to a stop codon can be overcome by a compensatory mutation in tRNA. This genetic phenomenon is referred to as _______

The ovules of cycas are :

Photosystem- II functions as a light dependent water plastoquinone oxidoreductase. What are the name of two reaction center proteins that bind electron transfer prosthetic groups such as P⁶⁸⁰ pheophytin and plastoquinone.

The scatter plot of growth rate and growth yield for 100 random environmental isolates of bacteria is shown below.

For osmoregulation in aquatic medium _______

Desert animals have longer loop of Henle compared to that of humans. Why they have longer loop of Henle ?

Consider the following statements. Which of the statement given are correct

Which of the following statements are true on DNA delivery methods during plant transformation ?

W hich of the following is/are correct ?

Which of the following are commonly used as reporter genes ?

RNA is supposed to be the first genetic material in the evolutionary process. It performs both catalytic and genetic functions. Which of the following is/are correct about RNA as catalyst ?

Sympathetic nervous system is characterized by ______

Which of the following statements are incorrect ?

Which of the following is/are correct ?

When two heterozygous tall pea plants(Tt) are crossed, the phenotypic ratio of the offspring is 3 tall : 1 dwarf. Then probability for long type of offspring would be in percent_________.

If a diploid cell contains six chromosomes, during metaphase-I _____ possible random arrangement of homologous could occur.

The percentage of Hb in RBC is _____.

Land mass occupied by forest is about _____ %.

Energy transfer from one trophie level to other in a food chain is ______ %.

The area of inner surface of bronchiole is _____ m².

The mean molecular weight of an amino acid in a typical globular protein is _____.

Production of one molecule of 3- phosphoglyceraldehyde required turns of the calvin cycle are ______.

For the conversion of one N₂ to 2NH₄⁺ during biological nitrogen fixation required ATP are _____.

In an antigen antibody interaction in the zone of equivalence, the isolated antigen IgA complex was found to be in the molar ratio of antigen : IgA, 2 : 1. The number of epitopes present on the antigen is/are_____.

An organism has a diploid number of 12. On the basis of segregation and independent assortment ______ different types of gametes can be formed

At what [s] is the velocity [V₀] of an enzyme- catalized reaction is 25% of the Vmax ________ km.

If the recessive disease phenylketonuria(PKu) occurs in a genetically constant population with frequency of 1 in 10,000. The frequency of the carrier genotype is_________ %.

If one arginine has a molecular weight of 174 Daltons, the molecular weight (in Dalton) of a circular polymer of 38 arginines would be ______.

If 1 mol of acetyl coenzyme A labeled with ¹⁴C in both carbon positions of the acetate moiety, goes through one turn of the TCA cycle, production of ¹⁴CO₂ would be ______.

To produce 12 Pollen grains of cyperaceal, required meiotic divisions are _____.

The number of 5- Sylow subgroup(s) in a group of order 4S is ______.

Let G be a group of order 231. The number of elements of order 11 in G is ______.

the value of the determinant of adjoint of A is ______.

The number of functions from the set {a,b,c,d} to the set {1,2,3,4} is ______.