Reproduction is necessary for living things because it enables them to create offspring and continue their population. Through reproduction, they pass on their genetic information to the next generation. This ensures that their species continues to exist on Earth.Know More
By reproducing, new living things are created. There are two methods for reproduction. Sexual reproduction involves two members of a species, typically a male and female, whereas asexual reproduction enables a living thing to reproduce without the need for another organism. Most living things reproduce either sexually or asexually, although there are a few rare species that are capable of reproducing through both methods.
In sexual reproduction, two parents reproduce and contribute a gamete, which is a reproductive cell that contains a haploid, which is a single set of chromosomes. The offspring is produced from a combination of genes inherited from both parents. Half of the genetic material of the offspring comes from each gamete. Humans and most other animals reproduce this way.
In asexual reproduction, a single parent cell produces genetically identical offspring. Living things that reproduce asexually do not need to receive cells from another living thing. A single parent provides all chromosomes, which is why the offspring is identical in genetic structure. Bacteria, yeast and molds are some species that reproduce asexually.Learn more about Biology
Hereditary diseases are health problems that are passed from parents to offspring through defective genes, according to Steady Health. Some examples of hereditary diseases include hereditary hemochromatosis, Down syndrome, spherocytosis, achondroplasia, Usher syndrome, hemophilia, sickle cell anemia, muscular dystrophy, Turner syndrome, xeroderma pigmentosum, albinism, galactosemia, neurofibromatosis, myotonic syndrome, phenylketonuria, polycystic kidney disease, retinoblastoma, Klinefelter syndrome, Tay-Sachs disease and porphyria.Full Answer >
Selective breeding is the process of choosing a breeding stock of an animal based on specific traits that a breeder wants to reproduce in the offspring. There are two types of selective breeding or artificial selection.Full Answer >
Lamarck's theory of evolution differs from Darwin's in its premise that adaptations appear when needed in response to the environment and the acquired traits are then passed on to offspring. Genetic research, however, has shown that living organisms cannot alter their genetic material as needed. Darwin's theory differs from Lamarck's by describing evolution as a consequence of the environment instead of a response to it.Full Answer >
The concept of natural selection states that competition for limited resources among a species with varying traits results in a winner and a loser, with the winner having a greater opportunity to survive and breed offspring with like traits. Over time the advantageous traits become predominant in the species.Full Answer >