The cell wall of fungi is primarily composed of: MCQ with Answer and Explanation

Explanation:
Glucose is a monosaccharide, sucrose a disaccharide (glucose+fructose). Cellulose is a structural polysaccharide, not storage; starch is storage. So 3 is incorrect.

Explanation:
The humerus is the upper arm bone. The femur is the thigh bone. So C is incorrect.

Explanation:
Molecular cloning involves inserting a DNA fragment into a vector (e.g., plasmid), which is then taken up by host cells (e.g., E. coli). As the bacteria replicate, they produce many copies of the inserted DNA, creating a gene library. PCR amplifies without vectors, sequencing reads bases, microarrays analyze expression.