Genetic variation can<span> be </span>caused<span> by </span>mutation<span> (which </span>can<span> 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).</span>
If we start o war people will die and the population will decrease. If we pollute the air and water there will be less to drink and eat and there will be more floods. This will cause the population to decrease because there will be more deaths.
B. false, this is because a few plants do not photosynthesize and instead get their nutrients/ food from another organism (they are parasitic)
The correct answer for this question would be the fourth option. Deletion of genes around the centromere is considered a pericentric inversion. The Pericentric inversions include the centromere and there is a break point in each arm. <span>Deletions and duplications occur during crossing over during the inversion which results in recombination in two loops. </span>
A principle that is not associated with the cell theory is that very few cells reproduce. In fact all cells reproduce because they are the basic units of life.<span>2 people </span><span>found this useful</span>
