Which enzyme is responsible for unwinding the DNA double helix during replication? MCQ with Answer and Explanation

Explanation:
Morphology is the study of the form and external structure of organisms. Anatomy deals with internal structures, physiology with functions, and histology with tissues. Morphology includes aspects like shape, size, color, and pattern.

Explanation:
Bacteria are prokaryotes with a single circular chromosome in a nucleoid region, without a nuclear membrane. They lack membrane-bound organelles like mitochondria. Their chromosomes are not linear; eukaryotes have linear chromosomes.

Explanation:
Ascariasis is a helminthic infection caused by the intestinal roundworm Ascaris lumbricoides. Ringworm (dermatophytosis) is a superficial fungal infection of the skin, hair, or nails caused by dermatophytes like Microsporum. Amoebiasis is an intestinal infection caused by the protozoan parasite Entamoeba histolytica, not a bacterium. Thus, statements 1 and 2 are correct.