Answer:
Types of variation in genetics
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring)
other answer
There are three sources of genetic variation: mutation, gene flow, and sexual reproduction. A mutation is simply a change in the DNA. Mutations themselves are not very common and are usually harmful to a population. Because of this, mutations are usually selected against through evolutionary processes
Answer:
I'm pretty sure it is B, because of natural selection
Answer:
Genetically modified organisms or GMOs can be characterized as living beings (for example plants, creatures or microorganisms) in which the hereditary material (DNA) has been changed in a way that doesn't happen normally by mating and additionally common recombination. The innovation is regularly called "present day biotechnology" or "quality innovation", now and again likewise "recombinant DNA innovation" or "hereditary designing". It permits chosen singular qualities to be moved from one life form into another, likewise between nonrelated species. Nourishments created from or utilizing GM life forms are regularly alluded to as GM nourishments.
GM nourishments are created – and promoted – in light of the fact that there is some apparent bit of leeway either to the maker or customer of these nourishments. This is intended to convert into an item with a lower cost, more prominent advantage (regarding toughness or healthy benefit) or both. At first GM seed engineers needed their items to be acknowledged by makers and have focused on advancements that carry direct advantage to ranchers (and the food business by and large).
One of the destinations for creating plants dependent on GM life forms is to improve crop insurance. The GM crops as of now available are fundamentally focused on an expanded degree of harvest security through the presentation of obstruction against plant infections brought about by creepy crawlies or infections or through expanded resilience towards herbicides.
Resistance for insects is accomplished by consolidating into the food plant the quality for toxins creation from the bacterium Bacillus thuringiensis (Bt). This poison is presently utilized as an ordinary bug spray in agribusiness and is ok for human utilization. GM crops that inalienably produce this poison have been appeared to require lower amounts of bug sprays in explicit circumstances, for example where nuisance pressure is high. Infection obstruction is accomplished through the presentation of quality from certain infections that cause sickness in plants. Infection opposition makes plants less helpless to sicknesses brought about by such infections, bringing about higher harvest yields.
Herbicide resilience is accomplished through the presentation of a quality from a bacterium passing on protection from certain herbicides. In circumstances where weed pressure is high, the utilization of such harvests has brought about a decrease in the amount of the herbicides utilized.
A) 5
Half-life is the time it will take for a quantity to reduce to half its initial value. In this case, uranium will undergo radioactive decay, and after 700 mil years, 5 of the 10 uranium atoms will have decayed.
<h2>Answer is option "B"</h2>
Explanation:
- Fossils are formed by unusal ways of minerals,energy and other substances. the sap solidifies and frames the semiprecious material called golden. In certain bits of golden the buried survives from living beings can be found. Volcanic ejections can shape fossils when creatures get caught in the hot debris streams. Right now, the fossil is a hole looking like an animal.
- Truth be told coal is the fossil record of entire timberlands; in any case, singular plant structures normally don't make due as the plant materials are compacted to short of what one-hundredth of their unique size. the hard part of plants are remain the fossil.
- So as to get fossilized, creatures must kick the bucket in a watery situation and become covered in the mud and residue.
- hence, the right answer is option B "Plant lived near the poles,but landmasses have drifted to current locations".