The population of red beetles will more likely to decrease over time, meanwhile the green beetles may increase. This is because in a new environment, red beetles are more likely to be found by predators, and green ones can camouflage themselves, so the red ones will be eaten, while the green ones stay unbothered so that the rate will even increase.
Answer: RNA is a more stable molecule than DNA
Explanation: DNA (deoxyribonucleic acid) is much stable than RNA (ribonucleic acid) for many reasons; Frist of all its because of the double strand of the DNA versus the single-stranded RNA. This is thanks to the Hydrogen bonding between bases since those bondings release free energy that allows the molecule to be provided by more thermodynamic stability.
Also the lack of 2′ OH groups makes DNA more stable since the OH groups are very reactive by themselves. In the DNA sugar molecule there is not a spare OH group that could start reacting on its own. So this is why DNA is immune to chemical reactions, while RNA (having an extra OH group) is more chemically "promiscuous".
Answer:
Explanation:
A Pure bacterial culture must be grown in sterile tryptophan or peptone broth for 24–48 hours before performing the test. A sterile environment helps to avoid contamination.
When a test is conducted and it shows the presence of a red or red-violet color in the surface alcohol layer it means the result is positive
But when the colour is yellow it indicate negative reaction due to glucose fermentation.
A deviation from two color may also occur when we have an orange color. This colour change is due to the presence of methyl indole
When there is no color change this indicate No decarboxylase which is an enzyme needed for the fermentation reaction.
Color changes are indicator of how successful the reaction was.
<span>A DNA Fingerprint is a pattern of dark bands on photographic film that is made when DNA fragments are separated by Gel electrophoresis and tagged.
Every human has their own unique fingerprints which will leave its trace to whatever objects we touched and our Law enforce held the database of all legal citizen's fingerprints</span>
