La gente que se pueda ir de vuelta de un momento en un día y a
Answer: Gram staining is arranged in the following order;
1) Crystal violet
2) iodine
3) Alcohol-acetone
4) safranin
Explanation:
Applying primary stain to a heat fixed smear of a bacterial culture
Then you add iodine which binds the crystal violet and traps it in the cell. After you decolourise with ethanol finally counter shade with safranin
Answer:
GCTATATCG => CGA UAU AGC
amino acid sequences: Arg - tyr - Ser
GCGATATCG => CGC UAU AGC
amino acid sequences: Arg - tyr - Ser
you have to translate the DNA sequence into mRNA sequence: C replace G, G replace C, A replace T, and U replace T
at last use the chart to find the amino acid sequences
let me know if you understand
A. Volcanic activity
You can approach this question in two ways:
One:
when volcanos erupt (called volcanic activity), they will expel enormous amounts of soot, rock, smoke, and other materials into the air. This material, if light enough, floats around in the atmosphere and can block the sun. The CO2 and other greenhouse gases produced can also contribute to global warming
Two:
Notice how volcanic activity is something that happens randomly and ‘rarely’. However, answers B, C, and D happen all the time. Earth is always spinning, it’s also always rotating around the sun. The sun also never stops moving: its main motion is from revolving around the Milky Way. Thus, it makes sense to choose the one random, rare event. This is because we only see long-lasting climate change occasionally, and thus it can’t be something ordinary like earths rotation.
Answer: a. mutation
Explanation:
A mutation is a change or alteration and a process that occurs in the DNA sequence of the organism. This happens due to the mistake in the DNA replication process or because of the environmental factors for example exposure to the UV radiation or due to smoking. These mutations either favors the survival of the organisms or they are lethal for the organisms.
