Consider the following statements about biotechnology: 1. Restriction enzymes cut DNA at specific sequences. 2. Ligase joins DNA fragments. 3. PCR amplifies DNA. Which of the above is/are correct? MCQ with Answer and Explanation

Explanation:
The Golgi apparatus consists of flattened membranous sacs called cisternae. It has a forming cis face near the ER and a maturing trans face directed towards the plasma membrane. It primarily modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles. It does not synthesize ATP; that is the function of mitochondria.

Explanation:
Salivary glands secrete saliva containing salivary amylase (ptyalin) which begins starch digestion. The stomach's gastric glands secrete HCl, creating an acidic medium for pepsin action. Bile is synthesized continuously by the liver, stored, and concentrated in the gall bladder, but not produced by it. Therefore, statements 1 and 2 are correct, while 3 is false.

Explanation:
The sublingual glands are the smallest of the three paired salivary glands, located under the tongue. The parotid is near the ear, submandibular under the jaw.