Explanation

 Human sex hormones, also known as sex steroids, are made up of steroids specifically derived from cholesterol. 

Steroid Hormones:

Sex hormones, like testosterone, estrogen, and progesterone, belong to a class of hormones called steroid hormones. 

Lipid Derived:

Steroid hormones are lipids, meaning they are fat-soluble molecules. 

Cholesterol as Precursor:

These hormones are synthesized from cholesterol, a type of lipid. 

Explanation

The enzyme responsible for joining Okazaki fragments during DNA replication is DNA ligase. 

Explanation

Hypotonic sports drinks contain a low level of carbohydrates.

They can quickly replace fluids that are lost by sweating and provide some energy in the form of sugar calories.

They are suitable for athletes who need fluids without a significant boost of carbohydrates.

Explanation

The photoelectric effect does not occur if the frequency of the incident light is below the threshold frequency.

The threshold frequency is the minimum frequency required for the incident photons to have enough energy to eject electrons from the surface of the material.

If the frequency is below this value, no electrons are emitted, regardless of the light intensity.

Explanation

Dehydrohalogenation involves the removal of a hydrogen halide from an alkyl halide

Typically carried out in the presence of alcoholic KOH

Explanation

In NaCl, each sodium ion (Na⁺) is surrounded by six chloride ions (Cl⁻) in a cubic close-packed structure.

Therefore, the coordination number of Na in NaCl is 6.

Explanation

The order of a reaction can be fractional, whereas molecularity (the number of molecules involved in the reaction)

It is always a whole number and cannot be fractional

Explanation

Electric current is a scalar quantity.

but it possesses magnitude and direction

ND23-9-2023

Explanation

Blood is a connective tissue.

It is considered so because of the presence of a matrix.

The lung, kidneys, and pancreas are organs involved in various physiological processes of the body. 

Explanation

The SI unit of work is the joule (J), which is the same unit used for energy.