NEET 2019

Which of the following can be used as a biocontrol agent in the treatment of plant disease?

What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm?

Thiobacillus is a group of bacteria helpful in carrying out :

Match the following organisms with the products they produce :

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-style:solid;border-width:0px;font-family:Arial, sans-serif;font-size:14px;overflow:hidden;
padding:10px 5px;wo...

Select the correct group of biocontrol agents.

Which of the following is a commercial blood cholesterol lowering agent?

Purines found both in DNA and RNA are:

The shorter and longer arms of a submetacentric chromosome are referred to as:

Match the following genes of the Lac operon with their respective produces :

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
ov...

Which of the following features of genetic code does allow bacteria to produce human insulin by
recombinant DNA technology?

Expressed Sequence Tags (ESTs) refers to :

Under which of the following conditions will there be no change in the reading frame of following mRNA?
5' AACAGCGGUGCUAUU 3'

Grass leaves curl inward during very dry weather. Select the most appropriate reason from the following :

Which part of the brain is responsible for thermoregulation?

Which of the following statements in correct?

The Earth summit held in Rio de Janeiro in 1992 was called :

Match Column-I with Column –II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-style:solid;border-width:0px;font-family:Arial, sans-serif;font-size:14px;overflow:hidden;
padding:10px 5px;word-break:normal;}
.tg th{border...

What is the site of perception of photoperiod necessary for induction of flowering in plants?

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the
parent sporophyte for some time, is first observed in :

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the
frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

What map unit (Centimorgan) is adopted in the construction of genetic maps?

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation, pink
flowers were obtained. When pink flowers were selfed, the F2 generation showed white, red and pink
flowers. Choose the incorrect statement ...

Select the incorrect statement.

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance
between genes was explained by :

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia,
and is sterile?

Which of the following contraceptive methods do involve a role of hormone?

Select the horomone-releasing Intra-Uterine Devices.

Conversion of glucose to glucose-6 phosphate, the first irreversible reaction of glycolysis, is catalyzed by

Respiratory Quotient (RQ) value of tripalmitin is :

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :

In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :

What is the fate of the male gametes discharged in the synergid?

Which one of the following statements regarding post-fertilization development in flowering plants is
incorrect?

Persistent nucellus in the seed is known as

Pinus seed cannot germinate and establish without fungal association. This is because :

Select the incorrect statement.

Which of the following is true for Golden rice?

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth :

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these
cells are mainly present in :

Xylem translocates:

The structure of intermediate A in the following reaction, is :

The non-essential amino acid among the following is :

The correct structure of tribromooctaoxide is :

The number of sigma (\(\sigma\)) and pi (\(\pi\)) bonds in pent-2-en-4-yne is -

Which of the following diatomic molecular species has only \(\pi\) bonds according to Molecular Orbital Theory?

The manganate and permanganate ions are tetrahedral due to :

If the rate constant for a first order reaction is k, the time (t) required for the completion of 99 % of the
reaction is given by :

For the chemical reaction
N2(g) + 3H2(g) ⇌ 2NH3(g)
the correct option is :

Among the following, the narrow spectrum antibiotic is :

What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory?