in everything you do in your daily life you are going to be active it may not be running or joking but you half to walk to get to your car or to the fridge you are constantly using your muscles
In a sample of double-stranded DNA, if the nitrogenous base guanine is 19%, then the nitrogenous base adenine will be 31%
Explanation:
In a double-stranded DNA, the four nitrogenous bases bind and pair together. The purine bases guanine (G) and adenine (A) pair with pyramidine bases cytosine (C) and thymine (T) respectively. The pairing will be between G-C and A-T bases.
According to Chargaff’s Rule, the percentage of each nitrogenous base will be equal in a pair. So the percentage of G will be equal to percentage of C and the percentage of A will be equal to percentage of T.
So if the guanine percentage is 19%, then applying Chargaff’s rule, cytosine will also be 19%
The remaining 68% will be shared with the adenine and thymine pair, of which adenine will be of 31% according to Chargaff’s rule.
Elective courses give students a chance to explore subjects not typically valued and explore interests they didn't know they had. This exploration will also let them discover career options they had not even considered a possibility. This helps them expand their horizons and grow as people.
I can't help you with the second one, sorry. the whole writing your highschool plan in middle school is B.S. I changed my direction completely. I started out focusing on welding and car repair and ended up in the radio club and focusing on culinary and baking courses. all you need to know in middle school is a reasonable understanding of the pathways your highschool is providing and what you enjoy.
If there is one class that should be required for high school graduation it should be Home Economics of some sort. No matter what profession a person goes into they should have a grasp on how to take care of themselves. A typical home ec class includes brief rundowns on how to calculate a monthly budget, how to cook a basic meal (so you aren't just surviving on instant ramen), how to write a resume, how to sew a button or mend a garment , and how to manage a social group/ interaction. In my opinion, each of these should be considered the examples of why it should be required because they are necessary whether you are going to be a janitor or a doctor.
