Mutationsare random changes that occur in genes. They're relatively rare, but over thousands of generations, they can add up to very profound changes.Mutationscan introduce traits that are completely new and have never appeared in that species before. Sexual reproductionmixes the genes of each par...
This is also seen in certain flowering plants wherein both the gametes are non-motile and are present in the gametophyte. The non-motile male gamete in plants is known as pollen. Oogamy: in humans and mammals, one of the gametes, male gamete or sperm, is motile and the other gamete, ...
These plant alkaloids typically have physiological effects on humans when they are consumed. These physiological effects range from light stimulants such as caffeine to poisons such as coniine (the poison in hemlock). Alkaloids have been utilized from plants (as medication, or poison) for millennia...
many traits. It is seen that the mutations in the single gene usually have broader effects in changing several other possible traits. Moreover, the diseases that involve mutational pleiotropy, are categorized by deficiencies in the many organs which affects the smooth working of many-body systems....
What are some examples of mutations in animals, one example of human mutations? What are some examples of the "in between forms" of organisms that were predicted to exist by evolution? What are some examples of genetic mutations in animals? What'...
studied a group of wild capuchin monkeys in Brazil, specifically the placement of nuts prior to striking them. An interesting detail: they studied this same behavior in humans as well. Keep reading: Observing monkey behavior – cracking the nut Interactive enrichment for great apes There is ...
Very itisreentng example of a cause of extinction. Do you think this lack of genetic diversity could also lead to mutations? And if so, maybe this could revive the cheetah population.This lack of diversity will prove to be a great complication if there is ever a change in the cheetahs' ...
For some years now there has been quite a bit of controversy as to whether the non-stick Teflon coating on pots and pans is actually harmful to humans. However, more recent there has even been rumor that this marvelous invention that every kitchen maid loves, may actually cause cancer. So...
Epistasisis a phenomenon in genetics wherebythe presence or absence of mutations in one or more extra genes, referred to asmodifier genes(genetic modifiers), affects the outcome of agene mutation. In other words,the mutation’s fate is determined by the genetic environment in which it occurs.He...
In humans, there are so many bacteria in our gut that on a per-cell level we are only 10% humans. Extremophiles are bacteria that are capable of survival in extreme environments that are hostile to almost every other life form. Different types of organisms living in extreme conditions are ...