All of the following led to Watson and Crick's determination of DNA structure except ().
A、X-ray diffraction
B、cardboard model building
C、Levene's ideas on DNA components
D、Pauling's work on DNA structure
E、cesium chloride density gradients
A、X-ray diffraction
B、cardboard model building
C、Levene's ideas on DNA components
D、Pauling's work on DNA structure
E、cesium chloride density gradients
A.Generally, at what time of the year does the shipping channel get frozen?
B.For what purpose do you think the ban has been issued?
C.Sorry for my boldness, why do you go for the right wing?
D.Maggie, how did you feel about the change by way of the Internet economy?
A、links two nucleotide bases together
B、links the 5-C sugar of one nucleotide to the 3-C sugar of the next nucleotide
C、links two strands of the DNA molecule together
D、links two nucleotide bases together
E、none of the above
A、only the bases are replicated
B、the bases are replicated in small fragments
C、only half the DNA molecule is replicated at any one time
D、each new molecule has one strand from the original molecule
E、the two stands of the molecule are replicated
A、both strands are oriented in a 5' to 3' direction
B、both strands are oriented in a 3' to 5' direction
C、the molecule is oriented differently from the rest of the cell
D、only one strand of the molecule replicates
E、one strand is oriented in a 5' to 3' direction and the other in a 3' to 5' direction
A、3' to 5' direction
B、5' to 3' direction
C、3' direction
D、5' direction
E、none of the above
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!