Biogas is mixture of:

In grass families, the cotyledon is called as:

Read the passage carefully to answer the questions given below
Some strains of `Bacillus thuringiensis` produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes). In `Bacillus thuringiensis` the toxin is coded by a gene `crylAc` named cry. There are a number of them, for example, the proteins encoded by the genes `crylAc` and `cryllAb` control the cotton bollworms, that of `crylAb` controls corn borer. Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible. Recombinant DNA technology, Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis. The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency. This enzyme is crucial for the immune system to function. The disorder is caused due to the deletion of the gene for adenosine deaminase. `RNAi` takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific `mRNA` due to a complementary `dsRNA` molecule that binds to and prevents translation of the `mRNA`.
Which of the following technique is not used for early diagnosis of diseases?

The elucidation of the lac operon was the result of close association between the geneticist ______ and the biochemist ______.

In which ecosystem, a larger fraction of energy flows through detritus food chain (DFC) than through grazing food chain (GFC)?

Coelacanths which evolved into the first amphibians about 350 mya are also known as

Which one of the following factors can influence Hardy-Weinberg equilibrium?
A Natural selection
B. Genetic recombination
C. Gene flow
D. Mutation

Answer the question on the basis of passage given below :
For the transition elements
Sc \(\quad\) Ti \(\quad\) V \(\quad\) Cr \(\quad\) Mn\(\quad\) Fe \(\quad\) Co \(\quad\) Ni \(\quad\) Cu \(\quad\) Zn
Atomic numbers :
21 \(\quad\) 22 \(\quad\) 23 \(\quad\) 24 \(\quad\) 25 \(\quad\) 26 \(\quad\) 27 \(\quad\) 28 \(\quad\) 29 \(\quad\) 30 \(\quad\)
Which transition element ion \(\text{M}^{3+}\) has electronic configuration \(3d^5 4s^0\)?

The sex determination in honey bee is based on the number of sets of chromosomes an individual receives. So, the males are ______ having ______ .

Copper can be extracted from:
(A) Cryolite
(B) Malachite
(C) Calamine
(D) Copper glance
(E) Cuprite
Choose the correct answer from the options given below :

\(\tan \left[\frac{1}{2} \cos ^{-1}\left(\frac{4}{5}\right)\right]=\)

White light is used to illuminate the two slits in a Young's double slit experiment. The separation between the slits is b and the screen is at a distance D from the slits. At a point on a screen directly in front of one of the slits, certain wavelength are missing. Some of these wavelengths are :
(A) \( \lambda = \frac{b^2}{D} \)
(B) \( \lambda = \frac{2b^2}{D} \)
(C) \( \lambda = \frac{b^2}{3D} \)
(D) \( \lambda = \frac{2b^2}{3D} \)
Choose the correct answer from the options given below :

Which of the following is not the alien invasive species?