What are some negatives of sexual reproduction?

Answer 1

One of the disadvantages is that only half the population (females) is capable of. Another one of the disadvantages is that two parents have to be involved in the process. Also having to find a mate and producing gamete cells is also another disadvantage. Fertilization has to take place and there is no guarantee that the nucleus of the male sex cell would fuse with the cell. Also this takes a long time and there is no grantee that an offspring would be born.
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Sure, all of that is true but I think a lot of people forget that plants undergo sexual reproduction as well, and they can guarantee many "seeds." (by seeds, I'm not talking about the female and male gametes but the seed [or child if you want to call it that] itself that is created. Now what happens to that seed, whether it does grow or not, it is not a fault of the reproduction system of the flower.) So really, the only disadvantages I could think of from sexual reproduction are how frequent it occurs as well as mutation and the amount of time needed.

Answer 2

Compared to asexual reproduction, there are quite a few negatives. This biggest one, is energy. For sexual reproduction to occur, first the organism has to expend a great amount of energy

First, the organism has to find a mate. Depending on the organism, this could use over 50% of their total energy. Think about how far a polar bear has to go to find a mate. There is also the problem of actually attracting the mate after finding the opposite sexed species. Birds have to spend a great deal of time singing, or learning how to sing. Male Peacocks have to grow out their large flower displays. Male Elephants will fight each other.

That leads to another problem, competition within a species. This could actually be seen as good or bad. It's bad because the more a species has to compete within itself, the slower the species and grow its population. This could also be good, because it could control the size of the population as well as allow only the best traits to survive, so that depends on your point of view.

Lastly, with sexual reproduction, genetic drift can occur. This means that bad mutations and receive genes can be expressed, which could negatively effect a population.

With asexual reproduction, the singled celled organism (usually a bacterium) just divides itself and makes a identical copy. Asexual reproduction is much faster, less energy, and less of a chance for mutation and genetic drift.

Answer 3

Slower, less offspring than asexual reproduction

Answer 4

It takes more energy than asexual reproduction.

It produces much less offspring than asexual reproduction does.

Answer 5

Wastage of time,wastage of energy,requiring two organisms,alternation of good genetic characteristic.

Answer 6

Gets more diseases