The smallest living organisms that can cause disease in people, animals, and plants are called viruses. Most viruses contain either DNA or RNA as their genetic material. Both viruses are obligate parasites; hence, they need living organisms (host) to replicate.Answer and Explanation: Following are...
But in what form do the transferred genes physically make that intracellular journey – as RNA, as cDNA, as pieces of organelle DNA, or as whole organelle chromosomes? Current views focus upon cDNA as the vehicle, based upon some examples from plants. But other mechanisms, involving direct ...
I. Viruses that infect plants have single stranded RNA and viruses that infect animals have either single or double stranded RNA or double stranded DNA. II. Bacterial viruses or bacteriophages are usually single stranded RNA viruses. View Solution ...
The process whereby viral RNA is specifically selected for packaging within viral particles has been extensively studied over many years. As a result, two broad hypotheses have emerged to explain this specificity, though these are not mutually exclusive. The first proposes that the viral RNA contains...
DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) have a number of key differences. For one, RNA has uracil where DNA has thymine. For another, DNA contains deoxyribose sugar while RNA contains ribose sugar, and DNA is double-stranded while RNA is single-stranded. However, these two ...
Therefore, the statement that transcription is the process in which complementary mRNA is formed from a DNA template is accurate. Rate this question: 2. During initiation what enzyme binds to a specific region of DNA ? A. DNA polymerase B. RNA polymerase C. MRNA polymerase Correct ...
Bennett 摘要: Highlights plant genome initiatives, calling for a need for further understanding of plant genomes. Importance of plants; Description of data on plant genomes; Aspects of plant gene structure; Number of plant uses. DOI: 10.2307/43991 被引量: 85 年份: 1998 ...
During the recovery interval, the RNA polymerase is stalled to be activated by a pause-breaking factor in the subsequent drought. Drought leads to DNA demethylation near drought-response genes, with genetic control of the process. Progenies of the drought-exposed plants can better adapt to drought...
There is a difference in only one base of an RNA molecule which is different from that of DNA. The four nitrogenous bases of the RNA are Adenine,...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
Although initially identified in mammals, sperm RNAs have also recently been found in insects [7] and plants (pollen RNAs [4]), and are likely to be a universal attribute of the male gamete. Sperm RNA is unlikely to be transcribed from sperm nuclear DNA because of the changes in chromatin...