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Pollen vs Spore Diploid spore mother cells give rise to spores. Spores are haploid structures. They are important for reproduction as well as for survival in the unfavorable conditions. Spores are seen as a part of the life cycle of many organisms including plants, fungi, bacteria, algae etc. In plants, depending on the different […]
Pollen vs Nectar Flower is a highly specialized reproductive shoot. A typical flower has 4 whorls, one after the other, on a stalk. The stalk can be short or long. The two lower whorls are not directly involved in reproduction. Therefore, they are called accessory whorls. Upper two whorls are directly involved in reproduction. […]
The key difference between photosystem 1 and photosystem 2 is that the photosystem 1 has a reaction centre composing of chlorophyll a molecule of P700 that absorbs light at a wavelength of 700 nm. On the other hand, the photosystem II has a reaction centre comprising chlorophyll a molecule of P680 that absorbs light at […]
The key difference between membranous and nonmembranous organelles is that the membranous organelles are absent in prokaryotic cells while nonmembranous organelles are present in both prokaryotic and eukaryotic cells. The cell is the basic unit of living organisms. However, there are two types of cellular organizations namely prokaryotic and eukaryotic. One of the key features […]
Elimination vs Excretion Elimination is a process by which waste and indigestible material are removed from the body. Excretion can be considered as a method of elimination, but it involves only in the removal of metabolic waste. What is Excretion? Excretion is the process by which wastes produced in the body are removed from […]
Transposon vs Retrotransposon Transposons and retrotransposons are genetic components of DNA, and there are major differences between them. The percentage presence of these genetic materials varies across species, and their functions determine the fates of the organism with mutations and other phenotypically important changes. Transposons and retrotransposons are genes or collections of certain genes […]
Ovum vs Egg These are highly confused terms for many people, which sometimes include certain biologists who claim them to be so. However, many important differences could be easily noticed when the particulars of both egg and ovum are considered. Therefore, this article aims to discuss the particular characteristics and performs a comparison between […]
DNA复制和转录这些高度complex and highly regulated processes take place at the cellular level. However, due to the complexity of the processes and the terms being unfamiliar, DNA replication and transcription are not popularly known. In fact, a substantial amount of people with backgrounds of biological science is not well […]
DNA Polymerase vs RNA Polymerase These are two different enzymes responsible for different functions taking place in cellular level. Primarily the formation of DNA and RNA strands are regulated by these enzymes. This article intends to discuss the main differences of these extremely important enzymes for many processes of sustaining life. DNA Polymerase DNA […]
Gills vs Lungs Gills and lungs are the main tissues that provide gas-exchanging surfaces for the respiratory function of most of the higher animals. Primarily fish has gills while amphibians, reptiles, birds, and mammals have lungs for respiration or gas exchange. It would primarily comply that aquatic animals have gills and terrestrial animals have […]
