Answer:
The correct answer is option a. "Double-stranded regions of RNA typically take on an B-form right-handed helix".
Explanation:
Most of the native double-stranded DNA is on an B-form right-handed helix, following the structure proposed by Watson and Crick with about 10–10.5 base pairs per turn. However, double-stranded RNA does not follow this structure, and most regions have an A-form structure. The A-form right-handed helix have slightly more base pairs per turn, which makes it 20-25% shorter than B-DNA.
Vision is the least developed of a newborn baby's senses. <span>The visual capacity of the baby develops progressively in the first 8 months. From then on, the baby's vision will be as good as that of the adult. Although at birth, the eyes of the newborn have the physical ability to see without problems, your brain is not yet ready to process all that information; that's why he sees everything blurred. With the development of the brain, your visual ability improves.</span>
Johannes Kepler was the one who elucidated the 3 laws of planetary orbits, the chief one being the elliptical orbits of the planets around the sun with the sun at a focal point at one end of the orbits. This was derived especially from careful observations by Tycho Brahe of the heavens and based on his model of the orbits so was scientifically based.