Observe the figure and answer the following:

The given diagram represents stages (A-E) of development of the embryo sac in angiosperms. Which of the following correctly identifies the structure labelled (ii), (iii), (iv), (v), and (vi) in figure E?

Which one of the following events is true about the lac operon in the absence of an inducer?

Match List-l with List-ll

List-l (Hormones)	List-ll (Functions)
(A) LH	(I) Necessary for maintenance of pregnancy
(B) GnRH	(II) Stronger uterine contractions
(C) Oxytocin	(III) Stimulate secretion of gonadotropins
(D) Relaxin	(IV) Ovulation

Choose the correct answer from the options given below:

Different stages of oogenesis are given below. Arrange them in the sequence of their occurrence
A. Completion of first meiotic division of primary oocyte
B. Release of ovum from the ovary.
C. Primary oocyte in the primary follicle formation.
D. Graafian follicle

Which one of the following structure is haploid (n) in relation to male reproductive system?

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`.
The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency.
This disorder is caused due to the deletion of the gene for -

Which one of the followings is not a feature of insecticidal protein crystals formed by Bacillus thuringiensis: -

A man rows downstream 30 km and upstream 20 km. If he takes 5 hours to cover each distance, then the speed of stream is

If structure of Co, Ni and Cu is cubic close packed (CCP), the structure of Zn metal will be -

Pick the correct structure for carbolic acid among the following compounds:

\(\text{CH}_3-\text{CH}(\text{Br}) - \text{CH}_2 - \text{CH}_3 \xrightarrow{\text{alc. KOH}} \text{A} \xrightarrow{\text{Br}_2} \text{CH}_3-\text{CH}(\text{Br}) - \text{CH}(\text{Br}) - \text{CH}_3 \text{(B)}\)
\(\text{(B)} \xrightarrow{\text{alc. KOH}} \text{CH}_3-\text{C} = \text{C} – \text{CH}_3 \text{(C)}\)
\(\text{(C)} \xrightarrow{\text{Hg}^{2+}/\text{H}^+\atop \text{H}_2\text{O}} \text{D}\)
A and D respectively are :

Which of the following statements are correct?
(A) On dilution, conductivity of all the electrolytes decreases.
(B) On dilution, the number of ions per unit volume decreases.
(C) Molar conductivity increases with dilution.
(D) Limiting molar conductivity is the conductivity at a very high concentration.
Choose the correct answer from the options given below:

At some instant, the current in the circuit shown below is 1 A, and it is decreasing at a rate of \( 10^2 \text{ A/s} \). The value of the potential difference \( (V_P - V_Q) \) at that instant is: