what is sexual reproduction in detail ?
Answers
Answer:
Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (such as a sperm or egg cell) with a single set of chromosomes (haploid) combines with another to produce an organism composed of cells with two sets of chromosomes (diploid).
Explanation:
Sexual reproduction is the process in which new organisms are created, by combining the genetic information from two individuals of different sexes. The genetic information is carried on chromosomes within the nucleus of specialized sex cells called gametes. In males, these gametes are called sperm and in females the gametes are called eggs. During sexual reproduction the two gametes join together in a fusion process known as fertilization, to create a zygote, which is the precursor to an embryo offspring, taking half of its DNA from each of its parents. In humans, a zygote contains 46 chromosomes: 23 from its mother and 23 from its father. The combination of these chromosomes produces an offspring that is similar to both its mother and father but is not identical to either.
Fertilization
Phenotype traits, such as physical adaptions to an organism’s environment and genotype traits, such as resistance to disease, are passed down from each parent during sexual reproduction. Natural selection, whereby individuals with favorable adaptions to their environment are able to survive and successfully reproduce, drives the evolution process. Sexual reproduction increases the diversity of genotypes and phenotypes within a population, allowing natural selection to select for the individuals best suited to an environment.