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.
Hi,
Deborah, a 75-year-old woman, stumbled slightly while walking, then felt a terrible pain in her left hip. at the hospital, x-ray images revealed that the hip was broken. also, the compact bone and spongy bone throughout her spine were very thin. what was her probable condition?
- Osteoporosis
Answer:
Football has impacted our society in many ways by giving the players concussions and injuries which can affect them short term or long term. Football players all love what they do but it can hurt them and make them parylyzed which will be affecting them for the rest of their lives. Some people say that football should not be allowed and so there are some people who refuse to do anything with football. But other people love to watch football and say it's fine because they are getting exercise and it is a healthy thing to do. Even though it can affect them in some harsh ways they have a right to do things they like.
Its to make plant food, or photosynthesis
