Name the type of association: Crow feeding the hatchling of Koel
Brood parasitism
12 Class
Give one example for each :Interspecific competition
1. The concept involves species vying for scarce natural resources. 2. An example is the Abingdon tortoise’s extinction in Galapagos, attributed to competition with introduced goats. 3. The goats’ superior browsing efficiency played a role in the rapid decline of the tortoise population.
Give one example for each : Mutualism
1. Lichen consists of a mutualistic partnership between algae (cyanobacteria) and fungus, where the algae perform photosynthesis to produce food, and the fungus aids in moisture absorption. 2. Algae and fungus in lichen depend on each other, with algae synthesizing food through photosynthesis and the fungus contributing by absorbing moisture.
Define the following terms : Camouflage
The phenomenon of blending into the surroundings by mimicking similar colors, markings, and shapes to evade predators and prey, as observed in creatures like stick insects and leaf insects.
Define the following terms : Parasitism
Parasitism is a relationship between two species where one, the parasitic species, benefits at the expense of the other, known as the host, by causing harm.
Define the following terms : Commensalism
Commensalism is a symbiotic relationship where one species benefits while the other remains unaffected, experiencing neither harm nor benefit.
Enlist and write in breif about the different biological tools required in rDNA technology.
Various biological tools essential in rDNA technology include: i. Instruments: PCR, Agarose Gel Electrophoresis, SDS-PAGE Polymerase Chain Reaction (PCR) is a vital process for amplifying the gene of interest in vitro using a PCR machine. It can generate billions of copies of a specific DNA or RNA segment with high accuracy and specificity within a … Read more
Enlist different types of restriction enzymes commonly used in rDNA technology? Write on their role.
Various types of restriction enzymes commonly used in rDNA technology are: 1) Type I – These enzymes, such as EcoK, serve both as endonucleases and methylases, playing a dual role. 2) Type II – These enzymes, including EcoRI and BglII, exhibit separate cleaving and methylation activities. They are more stable and extensively employed in rDNA … Read more
What is a vaccine? Give advantages of oral vaccines or edible vaccines.
A vaccine is essentially a biological tool that trains our immune system. It introduces a weakened or harmless part of a pathogen to our body, teaching our immune system to recognize and defend against it. So, if we later encounter the actual disease, our immune system is ready and equipped to mount a swift defense. … Read more