Question

'A QUESTION FOR 50 POINTS'
What is the meaning of "Random union of male and female gametes at the time of fertilization"​

Answer 1

what is the question???? didn't understood....

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Answer 2

Answer:

Sexual reproduction refers to the sexual germ cells (gametes) produced by the parents, through the combination of bisexual germ cells (such as sperm and egg cells), become the fertilized egg, and then the fertilized egg develops into a new individual, called sexuality reproduction. Extensive variation in gene combinations in sexual reproduction can increase the ability of offspring to adapt to natural selection. Randomly combined genes in offspring of sexual reproduction may or may not be beneficial to the species, but at least increase the chances of a few individuals surviving in an unpredictable and ever-changing environment, thereby benefiting the species. Sexual reproduction can also promote the spread of favorable mutations in the population. If two individuals in a species have favorable mutations at different sites, in the asexual reproduction population, the two mutants will compete until one elimination, it is impossible to retain both favorable mutations at the same time. However, in sexual reproduction populations, through mating and recombination, these two favorable mutations can simultaneously enter the genome of the same individual and simultaneously spread in the population. For the above reasons, sexual reproduction accelerates the process of evolution. In the more than 3 billion years of biological evolution on Earth, the first two billion years of life have remained in the asexual reproduction stage, and the evolution has been slow, and the evolution rate has accelerated significantly since the last 1 billion years. In addition to changes in the earth's environment (such as the emergence of the oxygen-containing atmosphere, etc.), the occurrence and development of sexual reproduction is also a major cause

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