If homosexuality determined by genes how come there are homosexuals today even though they didn't reproduce throughout evolution?
Homosexuality is not determined by genes. The theory is that homosexuality is associated with a combination of gene sequences (not individual genes) with gestational hormones.
Gene sequences can occur and recur regardless of whether certain individual genes become rare or even extinct.
If homosexuality is genetic, born to parents that aren't, that would mean the gene is recessive. Suppose H is heterosexual and h is homosexual. If two Hh's marry and the kid gets h from both parents, s/he is then gay.
This depends on who you are asking. Some people will say no (because they will not have any children of their own). These people usually do not like homosexuals. Some people will say yes (they will not pass on their genes to the next generation). Read More
It depends on who you ask and where you are asking. The world is in a state of rapid evolution on the subject. Read More
Cultural evolution is the phenomenon whereby cultural ideas, notions, views, etc. propagate throughout populations, like alleles propagate throughout population gene pools in biological evolution. Some propose that the way these ideas propagate throughout populations is similar to the ways of biological evolution, in that cultural ideas (or memes) are subject to a kind of cultural selection, that determines how fast they spread, and to what degree. Read More
It has been determined recently that the driving force of evolution is the relationship between the species. Before that, it was thought to be adaptation. Read More
They weigh each star with a scale Read More
Mass. That's all; everything about a star is determined by the initial mass. Read More
a game where your creature changes/evolves throughout the game, famous evolution games are, evolution the game of life, spore, dark-spore(coming soon) and also two free flash games, monster evolution and bug evolution (but the last two defiantly aren't as good). Read More
The relationship among an organism's environment, adaptations and evolution is that the environment will alter, so the organism has to adapt to the new environment. Throughout the years this has created evolution seen in fossils and history books Read More
Yes. There is no set rate for evolution; the speed by which populations diverge behaviourally, morphologically and genetically is determined entirely by circumstance. Even different genes in the same population gene pool can have different rates of evolution. Read More
Mckinnels' hypothesis of homosexuality being an evolution of man is quite a perculiar and distinct theory(Also disturbing). This theory includes ideas so radical that it is almost unbelieveable however, the theory is quite straight forward if understood correctly. The theory was that "gayness"(see Homosexuality.) is an evolution of man to help with the growing problem of population growth. Mckinnel stated that whenever there was a problem in the past mammals have evolved to deal with… Read More
Evolution isn't fact. Scientific view point: Evolution is based in fact because evolution has happened throughout the history of all life on earth, and is still going on today. The theory of evolution is based on the science done and evidence collected in paleontology and biology to create a working theory on how and why these processes have happened in the past, and how they happen in the future. Read More
Charles Darwin was the first to formulate a theory of evolution via natural selection. His theory posited the strength in a species is determined by its ability to reproduce and its offspring to survive. Thomas Henry Huxley applied Darwin's theories to human evolution as well. Read More
One could say that natural selection and cultural evolution are both driven by differential reproductive success: variant traits that breed better spread throughout the population, and variant memes (cultural ideas) that are better at entrenching themselves in people's brains spread throughout society. However, cultural evolution is so much more complex than biological evolution that one might as well think of them as entirely unrelated phenomena. Read More
Some would like to say that there is no such thing as evolution, some would argue for the idea. I suggest that the whole concept of evolution is a relative one, in which we as humans have determined what it is or isn't, as we do with most ideas. So what evolution is will be different for each person. Hence there is no need to say there is or is no evolution, but rather, this… Read More
Gradual and sporadic changes occur constantly in nature and throughout the universe what biological term is used to describe these changes?
evolution Read More
The point of Evolution is that it doesn't start or stop at any given point. It's a natural process that happens throughout life. Evolution is caused by triggers in genes. Different animals have different triggers. These triggers can be caused by different things, but most commenly a change in habitat. Read More
Naturally evolving throughout the millenniums, following Darwin's evolution theory. Life has been always attached to necessity of evolution every second, minute, hours, days, months and years. During each year the mankind have learned how to survive. And nowadays we are still learning. JW70 Read More
Homosexuality is a perfectly natural part of human sexuality. Most of us are capable of both homosexual and heterosexual acts, even if we don't perform them. The percentage of exclusively and primarily homosexually oriented people appears to be about 1 - 3 percent across all cultures that have been studied. This suggests that evolution has found a reason to maintain a few of us in the human family. Read More
Selection is the process throughout evolution that results in a species existing in a current ecosystem at a given time. This is known as natural selection. Read More
Adaptations to the food they eat, their surroundings and what they live on may affect the way they evolve throughout each generation. Read More
Bernard Schulz-Cruz has written: 'The evolution of gay imagery in Mexican cinema' -- subject(s): Motion pictures, Gays in motion pictures, Homosexuality in motion pictures, History Read More
The Oxygen Revolution, Cyanobacteria has been tremendously important in shaping the course of evolution and ecological change throughout earth's history. Read More
They lost their power because of European evolution in war tactics and internal conflicts throughout their empire. Read More
Click on the 'Evolution of the Football' link on this page to read about the history of the football and the changes made to it throughout time. Read More
The course of evolution can be affected by changes to continents climate sea level and other factors in the environment When have these changes occurred?
Throughout all eras of geologic time Read More
Essentially, they are what directly causes evolution. Evolution is the shifting of allele frequencies in a population. Variant alleles come into existence through reproductive shuffling, mutation. Natural selection is what then determines in what 'direction' the allele frequencies in the population gene pool shift, whether some variant allele spreads throughout the population, or fades from it. Read More
They are found all over the world of Tron: Evolution. In the game, the main antagonist, Abraxas, has shards of this disk hidden throughout the game. (There are 7 of them) When you get one, you can hear a recorded message his memory files. They help you figure out who and what he is. That's all though. Read More
The mass tells where the star will end up as. Read More
they lived millions and millions of years ago though apparently birds are a type of dinosaur that have stayed and changed slightly throughout evolution! Read More
Determined using similarities in DNA and branching trees Read More
Charles Darwin's theory of evolution included the natural selection as a means that determined which species would survive and which did not. It remains an open question in the present time. Read More
Lamarck's theory cannot be true since characteristics of an organism are determined by its DNA and also over time how this is expressed through the epigenetic code. This theory is wrong. Read More
It would increase diversity, allow genetic traits to spread throughout the population at a faster rate and therefore allow faster adaptation to changing circumstances. Read More
Micro-evolution is not only a part of macro-evolution, it is the same mechanism as macro-evolution. Macro-evolution includes speciation, as a result of continuing micro-evolution. Read More
Theory of evolution refers to animals and plants evolution along the time. Language evolution is another issue, not entirely related to the theory of evolution. It follows the theory of evolution on some way but it is related to culture evolution, not to the physical attributes evolution. Read More
Life would've probably gone extinct ever since it's beginnings, and if it didn't that would've been either luck or a high level of reproduction throughout the species. Read More
How does a characteristic that contributes to few or no offspring not become more common as a result of evolution by natural selection?
The question answers itself: the characteristic is passed onto few or no offspring, and therefore will not spread throughout the population. Read More
Evolution is a process, theories of evolution are theories which explain that process Read More
Spontaneous evolution is evolution that is not moderated by intentional beings and actions. Most evolution, in other words. Usually we call non-spontaneous evolution (ie. evolution that *is* moderated by intent): breeding. Read More
Micro-evolution is a perspective on evolution, just life macro-evolution is a perspective on evolution. Micro-evolution is evolution seen at small scales; macro-evolution is evolution seen at larger scales. But they're both perspectives on the same process: reproductive variation and differential reproductive success causing divergence between populations. Read More
The theory of evolution describes the process of evolution. Evolution is happening out there, while we describe and understand it in here using the theory. ^^ Read More
Divergent Evolution, Convergent Evolution, and Coevolution Read More
Evolution does not have "stages". Evolution is a continuous and gradual process. Read More
Proteins are excellent sources for evidence of evolution, because their structure is determined genetically. Genes code for the amino acid sequences of proteins, so variation in protein structure can be directly linked to genetic variation. In fact, in the years prior to the ability to sequence DNA, the amino-acid sequences of proteins were used to infer the DNA sequences of the genes that coded for them. Since evolution is defined as genetic change within populations… Read More
Every argument against evolution falls into several categories. 1.) It could disprove something if it were true, but that something would not be evolution. 2.) There are no arguments for Intelligent design, all they have are arguments against evolution (and sometime plate tectonics, cosmology, mathematics's, or oceanography). 3.) Every single argument made against evolution or any other natural science in defence of intelligent design (also known as creationism as determined by a conservative Christian judge)… Read More
Mutations are random changes in DNA; genetic recombinations are new arrangements of genetic material (as a result of sexual reproduction). Together, they are the "fuel" that powers the "evolution machine," the direction of which is determined by natural selection. Read More
Selection is not required to prove evolution. Evolution is observed, and really does not require further proof. Selection is a mechanism of evolution. It is the mechanism that guides evolution, that gives it "direction". Read More
Evolution is sometimes described as macro-evolution, which is the long-term evolution of an entire new species, and micro-evolution, which is largely to do with less significant evolutionary changes within a species. Many creationists accept the existence of micro-evolution, but say that macro-evolution does not occur. Read More
there is no earth evolution of eevee retards there is no earth evolution of eevee retards there is no earth evolution of eevee retards there is no earth evolution of eevee retards there is no earth evolution of eevee retards there is no earth evolution of eevee retards Read More