The vitamin that is required for the synthesis of clotting factors is: MCQ with Answer and Explanation

Explanation:
DNA (deoxyribonucleic acid) is the universal genetic material in all cellular organisms (prokaryotes and eukaryotes) and many viruses, storing hereditary information. Some viruses, known as RNA viruses (like HIV, influenza, and TMV), use RNA (ribonucleic acid) as their genetic material instead of DNA. Proteins are the products of gene expression and perform various cellular functions, but they are never the genetic material in any cell or virus. Thus, statements 1 and 2 are correct.

Explanation:
Lactobacillus species convert lactose to lactic acid, lowering pH and coagulating milk proteins to form curd. It is a probiotic.

Explanation:
Photoperiodism is the physiological reaction of organisms, particularly plants, to the length of the day or a dark period. It is the mechanism by which plants measure the relative lengths of light and dark periods to regulate developmental processes, most notably the timing of flowering. Plants are classified as short-day plants, long-day plants, or day-neutral plants based on their flowering response to photoperiod. The photoreceptor pigment phytochrome is crucial in perceiving these light/dark signals.