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The figure shows a system of two concentric spheres of radii $r_1$ and $r_2$ and kept at temperatures $T_1$ and $T_2$, respectively. The radial rate of flow of heat in a substance between the two concentric spheres is proportional to

Level of which hormone decreases in blood when both ovaries are removed from a female?

Which of the following statements are incorrect regarding amniocentesis and chorionic villi technique for foetal disease detection?

Cambium is most active in

The earliest ancestors of higher plants are

Choose the odd one out from each of the following sets:

$\left(I\right)\text{p}\to \text{Hadean, q}\to \text{Phanerozoic, r}\to \text{Palaeozoic, s}\to \text{Proterozoic}$

$\left(II\right)\text{p}\to \text{Ordovician, q}\to \text{Permian,r}\to \text{Silurian, s}\to \text{Cretaceous}$

$\left(III\right)\text{p}\to \text{Oligocene, q}\to \text{Miocene,r}\to \text{Pliocene, s}\to \text{Permian}$

$\left(IV\right)\text{p}\to \text{Cenozoic,q}\to \text{Palaeozoic, r}\to \text{Jurassic, s}\to \text{Mesozoic}$

The Red List provides data on

Placenta

How many of the following vegetative propagules are subaerial stem modifications? Runner, Rhizome, Sucker, Tuber, Offset, Bulb.

Identify the correct statements related to the uptake of mineral ions

A. The membrane proteins pump ions from soil into the cytoplasm of epidermal cells

B. Transport proteins of endodermal cells act as control points, which adjust the quantity and type of solutes reaching the xylem

C. Root endoderm due to its suberin layer, can not transport ions

Which of the following sets include the bacterial diseases?

Which of the following has higher diversity?

Select the incorrect statement from the following.

Fats or triglycerides are formed by:

Who is the father of Plant tissue culture?

Cauliflower mosaic virus contains :

Match the following characters with their contrasting traits in case of pea plants.

Abscisic acid is also known as

Assertion: Disintegration of cells is performed using gentle chemical, physical and enzymatic methods.

Reason: Product of interest must not be damaged during cell disintegration.

Fill in the blanks:

The connecting link between invertebrates and chordates is the (i)______ that belongs to the phylum (ii)_______ and has a larval form called (iii)_______ which resembles the larval form of (iv)_________.

ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.

Which of these is not a characteristic of plants?

Which of the following hormone(s) is/are not produced by non organised endocrine tissues?

In a test cross involving $F_1$ dihybrid flies, more parental type offspring were produced than recombinant type offspring, this indicates

Wind pollinated flowers are

Atomic bomb was used during World War II in

Surgical removal of uterus is_________

Micronutrient which is important in transport of sugar, synthesis of enzymes and cell division is

Those species whose numbers have been reduced considerably and are at the verge of extinction are called

Which of the following is a disease caused by a nematode parasite?

The weight of a typical full-term baby is around -

Regarding assertion and reason, choose the correct option.

Assertion[A]: The case of red milk snake mimicking coral snake is classified as Batesian Mimicry

Reason[R]: Red milk snake is not venomous and they mimic the appearance of coral snake to appear dangerous to ward off unwanted predators.

Identify parts 1 – 4

In cloning of cattle, a fertilised egg is taken out of the mother's womb and

Which one of these amino acid cannot be synthesized in our body?

Coelom is lined by

What is the primary function of the Calvin cycle?

Which of the following figures is associated with formation of fraternal twins?

In cell division, proteins are involved in the formation of:

In which season maximum activity of cambium is seen?

Keerthi and Sadhana delivered babies at the same time in the same nursing home. The babies somehow get exchanged, and confusion ensues. The male baby has blood group O and the female baby has blood group AB. If Keerthi’s blood group is B and Sadhana’s blood group is AB, who is the mother of the male baby?

In most non-mammalian vertebrates, the reproductive products (i.e. sperm, eggs, embryos) leave the body by way of_________

During which stage of Prophase I, does the crossing over takes place ?

The immunoglobulin abundant in colostrum is

Match the family planning methods listed under columns I with the parts/organs in which these are used given under columns II. Choose the answer which gives the correct combination of the alphabets of the two columns.

$\begin{array}{cccc}& Column-I& & Column-II\\ & FamilyPlanningMethods& & Parts/organsused\\ A& Diaphragm& p& Uterus\left(Womb\right)\\ B& Condom& q& Fallopiantube\\ C& Vasectomy& r& Vasdeferens\\ D& Tubectomy& s& Penis\\ & & t& Vagina\end{array}$