Which of the following statements best explains why dominant alleles that cause lethal disorders are less common than recessive alleles that cause lethal disorders?
Which of the following statements best explains why dominant alleles that cause lethal disorders are less common than recessive alleles that cause lethal disorders?
Most individuals carrying a lethal dominant allele have the disorder and die before they reproduce, whereas individuals carrying a lethal recessive allele are more likely to be healthy and reproduce.
Lethal disorders caused by dominant alleles are usually more severe than lethal disorders caused by recessive alleles.
The presence of a lethal dominant allele causes sterility.
Unlike lethal disorders caused by recessive alleles, lethal disorders caused by dominant alleles usually cause the death of the embryo.

The reason why dominant alleles that cause lethal disorders are less common than recessive alleles that cause lethal disorders is that most individuals carrying a lethal dominant allele have the disorder and die before they reproduce, whereas individuals carrying a lethal recessive allele are more likely to be healthy and reproduce (first option).

Explanation:

The severity with which a lethal disorder occurs will determine whether or not the individual suffering from it can have offspring.

With respect to genetic disorders that are lethal, when presented as dominant alleles most of the offspring can inherit them and, consequently, prevent reproduction when the disorder is manifest in the individual.

Diseases that are transmitted to the offspring as recessive alleles are more common, because they can be present in the individual without the disease, in the form of a healthy carrier. This ensures that these types of recessive disorders are more common than those linked to dominant alleles.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

my teacher would say no s