What is a nucleic acid consisting of the nucleotides adenine, guanine, cytosine, and uracil; usually single-stranded, and has functions in protein synthesis, gene regulation, and as the genome of some viruses? Fill in the blank. The heredi...
What are the two types of nucleic acids in cells, and what are their functions? What in the unit molecule of a nucleic acid? Name four differences between DNA and RNA.(p.29)细胞中存在哪两种核酸,它们的功能是什么?并指出DNA, RNA之间的区别。Answer: 1, DNA, RNA. 2, DNA is a molecule ...
—She’s a ___. She did the Nucleic Acid Test (核酸检测) in hospital all night yesterday. A. does; teacher B. did; scientist C. does; doctor 相关知识点: 试题来源: 解析 C 【详解】 句意:—你妈妈是做什么的? —她是一名医生。她昨天整晚都在医院做核酸检测。本题考查助动词和名词辨...
Step 3: Functions of Nucleic AcidsNucleic acids have several important functions, but two key functions are: 1. Heredity: DNA is responsible for the transmission of genetic information from one generation to the next. This process is known as heredity, which explains why offspring inherit traits ...
What is a subunit of nucleic acid formed from simple sugar, a phosphate group, and a nitrogenous base?Genes:Genes are the functional units of DNA that encode the sequence of gene products such as peptides, enzymes, and functional RNAs. Each chromosome cont...
In order to form nucleic acid, two triphosphate nucleotides must bond via hydrogen atoms in a process known as "base pairing."Each base is formed by complementary nucleotides, one purine and one pyrimidine: Purines:Adenine, Guanine Pyrimidines:Cytosine, Thymine, Uracil ...
35. What can we learn from this passage? A. We should do the nucleic acid test every day. B. We should keep a diary during the lockdown. C. We should keep an upbeat attitude. D. We should turn off the microphone during our online classes 相关知识点: 试题来源: 解析 答案见上 ...
What does "DNA" stand for? A. Deoxyribonucleic Acid B. Dioxin Nucleic Acid C. Diode Nucleic Acid D. Deoxynucleic Acid 相关知识点: 试题来源: 解析 A。“DNA”是“Deoxyribonucleic Acid”的缩写,即脱氧核糖核酸。选项 B、C、D 均错误。反馈 收藏 ...
1. Adenine (A) - Adenine (6-Adminopurine), C5H5N5, is a purine type of nucleobase, containing two rings of alternating carbon and nitrogen atoms. Adenine (A) always pairs with Thymine (T) to form an A-T pair. 2. Cytosine (C) - Cytosine (2-Oxo-4-adminopyrimidine), C4H5N3O,...
Nucleic acid is a naturally occurring chemical molecule that may be broken down to produce phosphoric acid, sugars, and an organic base combination (purines and pyrimidines). Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary types of nucleic acids (RNA). The genetic ...