The key difference between nucellus and tapetum is that nucellus is the central cellular mass of the ovule which contains the embryo sac while tapetum is a specialised layer of nutritive cells found within the anther. Nucellus and tapetum are two structures found in flowers. Nucellus is found within the ovule while tapetum is found […]
Archives for February 2021
Difference Between Zoochory and Anemochory
The key difference between zoochory and anemochory is that zoochory is the dispersal of seeds, spores, and fruits by animals while anemochory is the dispersal of seeds, spores, and fruits by the wind. Seeds and spores disperse from one place to another, germinate and grow, giving rise to a new plant or organism. Seed dispersal […]
Difference Between Molybdenum and Tungsten
The key difference between molybdenum and tungsten is that molybdenum is less resistant to oxidation, whereas tungsten is more resistant to oxidation. Molybdenum and tungsten are group 6 chemical elements that are in the d block of the periodic table of chemical elements. Therefore, these two chemical elements share closely similar properties. CONTENTS 1. Overview and […]
Difference Between Pachytene and Diplotene
The key difference between pachytene and diplotene is that pachytene is the third substage of prophase I during which crossing over and DNA exchange between nonsister chromatids take place while diplotene is the fourth substage of prophase I during which synapsis ends, and charismata become visible within bivalents. Meiosis is one of the two types […]
Difference Between Geocentric and Heliocentric Models
The key difference between geocentric and heliocentric models is that according to the geocentric model, the Earth is at the centre of the cosmos or Universe whereas according to the heliocentric model, the Sun is the centre and planets revolve around the Sun. Geocentric and heliocentric models are very important in astrophysics. These models are […]
Difference Between Newton’s First Law and Inertia
The key difference between Newton’s first law and inertia is that Newton’s first law describes the relationship between the motion of an object and the forces that are acting upon the object whereas the term inertia refers to the resistance of an object to any change in its velocity. Generally, Newton’s first law of motion […]
Difference Between Action Potential and Synaptic Potential
The key difference between action potential and synaptic potential is that action potential is the electrical potential difference across the plasma membrane of excitable cells such as neurons, muscle cells and endocrine cells, etc. while synaptic potential is the post-synaptic potential change in neurons. The nervous system transmits signals among the different parts of the […]
Difference Between Ammonium Hydroxide and Sodium Hydroxide
The key difference between ammonium hydroxide and sodium hydroxide is that ammonium hydroxide occurs in a liquid state while sodium hydroxide occurs in a solid-state at room temperature. Although ammonium hydroxide and sodium hydroxide are –OH containing ionic compounds, they have different chemical and physical properties. This article looks at this difference between ammonium hydroxide […]
Difference Between Alkaloid and Flavonoid
The key difference between alkaloid and flavonoid is that alkaloid is an amino acid-derived nitrogen-containing organic compound found in plants, animals, fungi and bacteria while flavonoid is a natural compound found in plants that do not contain nitrogen. Alkaloids and flavonoids are two groups of natural compounds found mainly in plants. They are organic compounds […]
Difference Between Intragenic and Extragenic Suppressor Mutation
The key difference between intragenic and extragenic suppressor mutation is that intragenic suppressor mutation is a suppressor mutation that occurs within the same gene. In contrast, an extragenic suppressor mutation is a mutation which occurs in a different gene. A mutation is an alteration of the nucleotide sequence of a gene. Suppression mutation is a […]