Answer:
the first answer that is there a cell with half the chromosome number of the parent cell
If a car of some sort is coming and they have their headlights on they could see to move out of the way that's partly why headlights were ceated
<span>A sperm cell has half of the chromosomes than other animal cells I think</span>
Evolution is the gradual process resulting in the changes in the genetic material of a population over generations. The mechanism that Darwin proposed for evolution is the process of natural selection. Natural selection is the key mechanism of evolution which increases the frequency of advantageous alleles in a population. Due to the limited resources in nature, organism with heritable traits favoring their survival and reproduction produce more offspring. It causes the population to become adapted to their environment and results in organisms with better survival ability and reproduction. These traits become heritable due to the reproductive advantage and are passed from the parents to the offspring. Over generations, the advantageous heritable trait becomes dominant in the population. It is responsible for the variation in the gene pool of the population which increases their fitness.
<u>50%</u> of offspring will have brown eyes
Explanation:
A heterozygous individual will have the genotype <em>Rr </em>while an individual who is homozygous recessive will have the genotype <em>rr.</em> A cross between the two will result in offspring with phenotype <em>Rr</em> and <em>rr</em> in the ratio of 1 : 1. This can be observed from the Punnet square attached. The same is the case for the phenotype. The ration of brown eyes to red eyes will be approximately 1 : 1
