The
content of A in DNA is 20%, while the content of C is ( )
A: 20%
B: 30%
C: 40%
D: 60%
content of A in DNA is 20%, while the content of C is ( )
A: 20%
B: 30%
C: 40%
D: 60%
举一反三
- If the cytosine content of double helical DNA is 40% of the total bases, the adenine content would be: A: 10% B: 60% C: 40% D: 30% E: 20%
- 某DNA分子中胸腺嘧啶的含量为20%,则胞嘧啶的含量应为(<br/>) A: 60% B: 30% C: 20% D: 80% E: 40%
- 保证紫外线消毒作用的适宜温度、湿度是 A: 10℃~20℃,50~60% B: 15℃~30℃,40%~60% C: 20℃~40℃,40%~60% D: 30℃~40℃,50%~60% E: 20℃~40℃,60%~70%
- 糖尿病饮食中碳水化合物、蛋白质、脂肪应各占() A: 50%-60%、≤15%、≤30% B: 40%-50%、15%-20%、≥30% C: 30%-40%、>40%、15%-20% D: 60%-70%、15%-20%、10%-20%
- DNA分子的腺嘌呤含量为20%,则胞嘧啶的含量应为 A: 20% B: 30% C: 40% D: 60%