1 Answers
Call
Talk Doctor Online in Bissoy App
Examine the differences between DNA and RNA. Explain why DNA is the most favorable molecule for genetic material and how RNA compares to it in this respect.
1. DNA is a double helix, with two chains bonded together and twisted, and RNA is a single helical molecule,with only one chain twisted. 2. DNA has the base Thymine...
1 Answers 1 views
What is the effect of drought on grapevine sweetness?
Grapevines growing under severe summer stress experience a significantdecline in productivity, mostly owing to stomatal limitations to photosynthesis. The photosynthetic productivity is limited by the stomatal closure, either in response...
1 Answers 1 views
What is the effect of soil water-holding capacity on concentration of sugar in grapevine berries?
Those soilswhich induce moderate water deficit are considered to be the best for grapevine cultivation. An early water deficit provokes early shoot growth cessation and reduces berry size. Under these...
1 Answers 1 views
Give the taxonomy of grapevine
Domain EukaryaKingdom PlantaeClass MagnoliopsidaOrder VitalesFamily VitaceaeGenus VitisSpecies V. viniferaL.
1 Answers 1 views
whta is the difference in pollination between wild-type grapevine and domesticated?
Flower types are quitedistinct between wild and cultivated vines: cultivars are mostly hermaphroditic while wild are dioecious; the female flowers, however, show anthers, but usually with sterile pollen. So, wildgrapevines...
1 Answers 1 views
Calculate the mass of potassium needed to release 50 cm3 of hydrogen gas at room conditions. [Relative atomic mass : K = 39, 1 mol of gas occupies 24 dm3 at room conditions]
Mass of potassium needed=74.6g
1 Answers 1 views
What volume of oxygen, measured under room conditions, can be obtained from the thermal decomposition of 8.2g of calcium nitrate?
1.12 L.
1 Answers 1 views
How AND UNDER WHAT CONDITIONS DOES SULPHURIC ACID REACT WITH BENZENE AND ETHYLENE? Give equation , the condition s under which benzene can be converted to styrene and acetophenone. H=1 ;C= 12.
H2SO4 + C6H6 <=> C6H5-SO3H + H2O heat.catalyst. Similarly, fuming sulphuric acid absorbs ethylene at room temperature to form ethyl hydrogen sulphate, with much evolution of heat. H2SO4 + H2C=CH2...
1 Answers 1 views
under which conditions can alkanes react with halogens?
Those reactions can be initiated with light or high temperature.
1 Answers 1 views
Predict whether Fe3+ can oxidize I- to I 2 under standard-state conditions
The appropriate half-reactions are I2(s) + 2eminus; rarr; 2Iminus;(aq) Eanode = 0.53V Fe3+(aq) + eminus; rarr; Fe2+(aq) Ecathode = 0.77 V Since Fe3+/Fe2+ is more positive, it should oxidize Indash;...
1 Answers 1 views