Explanation

Ethambutol is one of the drugs used to treat tuberculosis (TB), though it is bacteriostatic.

Rifampicin is a bactericidal drug and is widely used in TB treatment.

Explanation

Heparin, due to its large molecular size, does not cross the placenta

Preferred anticoagulant:

This characteristic makes heparin the preferred anticoagulant for pregnant women at risk of blood clots. 

Low molecular weight heparin (LMWH):

A form of heparin with smaller molecules is often preferred during pregnancy due to its more predictable dosing and reduced risk of bleeding complications. 

Explanation

Lunar soil is composed mainly of silicate minerals, with silicon dioxide (SiO₂) being a significant component.

Other components include various metal oxides like Fe₂O₃ and MgO, but SiO₂ is prevalent in the overall composition.

Calcium carbonate (CaCO₃) and sodium chloride (NaCl) are not typically found in lunar soil.

Explanation

A) Hydrogen - Very low solubility in water, decreases with increasing temperature.

B) Oxygen - Solubility decreases with increasing temperature; however, it is more soluble than hydrogen.

C) Air - A mixture of gases (mostly nitrogen and oxygen); individual gases like oxygen can dissolve, but overall solubility is affected by temperature.

Correct Answer: B) Oxygen

Oxygen is more soluble in water than hydrogen, and although its solubility decreases with increasing temperature, it remains the most soluble option among those listed.

Explanation

Explanation

The lipid molecules give fluidity and elasticity to the membrane and membrane protein gives semi-permeability to the membrane

The plasma membrane is also selectively or differentially permeable.

It allows free transport of solvent, i.e., water across it but will not allow free transport of solute particles.

Explanation

The correct equation for the position of the bright fringes in Young's double-slit experiment is:

𝑦 =𝑚𝜆𝐷/𝑑

Where

y is the position of the bright fringe on the screen.

m is the order of the bright fringe (0, 1, 2, ...).

λ is the wavelength of light.

D is the distance between the slits and the screen.

d is the distance between the two slits.

Explanation

The semi-digested food in a cockroach is temporarily stored in the crop.

The crop is an organ found in the digestive system of many insects, including cockroaches.

The crop allows insects to store food temporarily, which can be advantageous for survival in various environmental conditions.

Explanation

If the male is colorblind but the mother is normal then there is a 50% chance to reproduce the colorblind disease progeny and 50% other.

Colorblindness is an X-linked chromosome (criss-cross inheritance)

The man has XY chromosomes (1 X chromosome)

and female having XX chromosome (2 X chromosome). 

Explanation

A homogeneous society refers to a social setting where the majority of its members share common cultural, ethnic, religious, and linguistic backgrounds.

 A homogeneous society shares a common language, ethnicity and culture.