The organ that stores urine before excretion is the: MCQ with Answer and Explanation

Explanation:
Reverse transcription synthesizes DNA from an RNA template, catalyzed by reverse transcriptase in retroviruses and used in molecular biology for cDNA synthesis.

Explanation:
The double helix structure of DNA was proposed by James Watson and Francis Crick in 1953, based on X-ray diffraction data produced by Rosalind Franklin and Maurice Wilkins. They proposed that DNA consists of two antiparallel polynucleotide chains coiled around a common axis, with specific base pairing (A-T, G-C) holding the strands together.

Explanation:
Bryophytes (mosses, liverworts, hornworts) are often called the 'amphibians of the plant kingdom' because, although they can live on land, they absolutely require water for the completion of their life cycle, specifically for the swimming of male gametes (antherozoids) to reach the female gamete (egg) during fertilization. Algae are mostly aquatic, while pteridophytes and gymnosperms are better adapted to terrestrial life.