this is because the DNA of a species must be similar or else the species would look and act entirely different. DNA controls body structure and function, so if it is similar between organisms in the same species, they must look very similar and have some of the same natural instincts.
DNA is the information molecule of the cell. Within the sequence and structure of deoxyribonucleic acid, the code for every protein in the body can be found. In animal cells, DNA is packaged into nucleic acid and protein complexes called chromosomes. The chromosome allows for the easy division of genetic information between two daughter cells during mitosis.
They have many same genes to help them servive.
Some genetic variation exists in members of the same species because of variation among individuals due to environmental factors.
Because only 0.1% of DNA is different among all humans.
Yet depending on how the genes are tallied, as much as 70% of the human genome’s approximately 20,000 genes (DNA sequences that code for proteins) have counterparts in the acorn worm.
Because they are similar
Meiosis exists to ensure genetic variation between offspring. As long as the genes are being passed on, interchanged, and reselected, a species will remain adaptable.
since GENETIC is the compilation of DNA strands to form a gene that acts as a determinant to the growth pattern of an organism, that is the type of hereditary information the organism posses. and VARIATION is a change that exist between organisms..... thus; the word genetic variation is a change that exist between organisms of a particular specie as a result of change(s) that has occurred in their gene....
when there are no living members of a species the species is said to be "extinct".
All organisms must reproduce.
Of course, variation exists within individuals of the same species. This is because there are a small minority of genes which have multiple alleles in most species. In cases where a subset of the population is isolated from the rest of the population, a subspecies may develop which has particular unique characteristics but can still interbreed with the rest of the species.
Meiosis exists to ensure genetic variation between offspring. As long as the genes are being passed on, interchanged, and reselected, a species will remain adaptable.
when there are no living members of a species the species is said to be "extinct".
when there are no living members of a species the species is said to be "extinct".
Members of the same or different species.
since GENETIC is the compilation of DNA strands to form a gene that acts as a determinant to the growth pattern of an organism, that is the type of hereditary information the organism posses. and VARIATION is a change that exist between organisms..... thus; the word genetic variation is a change that exist between organisms of a particular specie as a result of change(s) that has occurred in their gene....
Sometimes positive variation can improve some ability of the species adapted to the environment. For example, a kind of virus can be killed by medicine A. A small part of the virus has some variation that make it can be alive with medicine A. The species of the virus can exist in future, or it will disappear in the future in the environment full of medicine A. Besides, positive variation can provide some capacity for the species to get more resource in the competition. Of course, there is negative variation that might contribute to the disappearance for the species. That is just another side of variation.
when there are no living members of a species the species is said to be "extinct".
when there are no living members of a species the species is said to be "extinct".
When a particular species ceases to exist, that species has gone extinct. An extinct species has no living family members.
All organisms must reproduce.
All organisms must reproduce.
Of course, variation exists within individuals of the same species. This is because there are a small minority of genes which have multiple alleles in most species. In cases where a subset of the population is isolated from the rest of the population, a subspecies may develop which has particular unique characteristics but can still interbreed with the rest of the species.