Virus is not a cell; it remains just in the form of a genetic material or encapsulated on outside with a protein capsid. It generally injects its genetic material into host cells wherein the viral proteins get synthesised.

Correct Option: B

Virus is not a cell; it remains just in the form of a genetic material or encapsulated on outside with a protein capsid. It generally injects its genetic material into host cells wherein the viral proteins get synthesised.

The viral particles are made up of only nucleic acid as its genetic material and some also have capsid made up of proteins. It is not cellular.

Correct Option: B

The viral particles are made up of only nucleic acid as its genetic material and some also have capsid made up of proteins. It is not cellular.

Ferns, a group under pteridophytes have large number of chromosomes e.g., Ophioglossum reticulatumhas 2n = 1260, highest known in all life forms.

Correct Option: B

Ferns, a group under pteridophytes have large number of chromosomes e.g., Ophioglossum reticulatumhas 2n = 1260, highest known in all life forms.

Pollination by snails or slugs is known as Malacophily, which is rare phenomenon. There are reports of it in Volvulopsis nummularium of family Convolvulaceae.

Correct Option: D

Pollination by snails or slugs is known as Malacophily, which is rare phenomenon. There are reports of it in Volvulopsis nummularium of family Convolvulaceae.

Vitamin D is a steroid hormone, a group of fat-soluble secosteroids that plays a vital role in calcium and phosphate absorption Vitamin D also enhances intestinal absorption of calcium, iron, magnesium, phosphate and zinc in human beings.

Correct Option: D

Vitamin D is a steroid hormone, a group of fat-soluble secosteroids that plays a vital role in calcium and phosphate absorption Vitamin D also enhances intestinal absorption of calcium, iron, magnesium, phosphate and zinc in human beings.