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.
Talking or texting is deadly for teen drivers. thus, option A is correct.
<h3>Why should we avoid using our phones while driving?</h3>
Driving while using a mobile device is extremely risky. Physically holding a phone takes one hand away from the controls, increasing the risk of accidents. Dialing is much worse because it demands the user to take their focus off the road.
Sending texts while driving is the riskiest of all distraction-related actions. Sending a text message increases a person's risk of a car accident by 23 times compared to just driving. Compared to other distraction-related pursuits, the figure is staggering.
Learn more about distraction during driving here:
brainly.com/question/18048790
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Answer:
D
Explanation:
Embarrassing is a form of making fun of them where psychologically they feel Be littled
1. Cells are the fundamental unit of structure and function in living things.
2. All living things are composed of cells.
3. All cells come from preexisting cells.
