Which molecule has a double helix structure? A. RNA B. DNA C. Protein D. Lipid 相关知识点: 试题来源: 解析 B。DNA 具有双螺旋结构。A 选项 RNA 一般是单链结构;C 选项蛋白质具有多种复杂结构,但不是双螺旋结构;D 选项脂质没有双螺旋结构。
A. RNA B. DNA C. Protein D. Lipid 相关知识点: 试题来源: 解析 B。DNA 是携带遗传信息的分子。A 选项 RNA 在某些情况下也可以携带遗传信息,但主要是 DNA 承担此功能;C 选项蛋白质是由 DNA 指导合成的,不直接携带遗传信息;D 选项脂质不携带遗传信息。反馈...
百度试题 结果1 题目25 The diagram shows part of a DNA molecule.Which part is a nucleotide?A CB-O D 相关知识点: 试题来源: 解析 A 反馈 收藏
Which RNA base pairs with the adenine in DNA? A. Thymine B. Cytosine C. Both A and B D. Uracil What are RNA base pairs? Which base pairs with adenine in a DNA molecule? (a) thymine (b) adenosine (c) cytosine (d) uracil (e) guanine. ...
(57)< Abstract > This invention nNR7 and/or discloses being isolated and characterizing of the cDNA molecule which the new member of the human nuclear receptor super family which is named nNR7-1 the cord/code is done. The rearrangement vector, the rearrangement host cell, nNR7 and/or ...
Nucleotides are organic molecules that are the monomers of nucleic acids like RNA molecules. Nucleotides may bind together through phosphodiester bonds and all consist of three basic parts.Answer and Explanation: All of the following are components o...
A.a DNA molecule is synthesized from an RNA template.B.ribonucleoside triphosphates are assembled into an RNA molecule without a template.C.an RNA molecule is synthesized from a DNA template.D.a protein is synthesized with information from a messenger RNA.E.a single-stranded DNA molecule is rep...
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 ...
C) Most enzymes are proteins: Proteins make up the majority of enzymes. Non-protein components or metallic elements can be bound to certain enzymes in order for them to act. Ribozyme is a kind of enzyme, not a protein.D) None of the above: By considering the first...
c) Hydrogen bonds formed between the sugar-phosphate backbones of the two DNA chains stabilize the structure. d) The pentose sugar in DNA is ribose (containing two hydroxyl groups). A The nucleic acid strands in a DNA molecule are oriented antiparallel to each ot...