Answer:
C) A population bottleneck occurred, altering the resulting allele frequencies.
Explanation:
Population bottleneck can be described as the reduction which occurs in a population due to any environmental factor like fire or due to the activities of humans like hunting etc.
A large number of Beatles got killed due to the fire. The reduced population that is left has an altered gene frequency. This phenomenon can be described as a genetic drift that has occurred and caused changes in the genetic frequencies.
Answer:
O A. Males only have one X chromosome.
Explanation:
Males are XY and Females are XX. Based on this fact, option A is true. Option B is false b/c women can carry recessive alleles, option c is incorrect b/c males can carry dominant alleles, option D is incorrect b/c females have two X chromosomes.
From process of elimination, A is the best choice. Hope you get it right
1. skin tears saliva stomach acid with all produce friendly bacteria. 2. active immunity is when one has a disease or live pathegon and is immune to it afterwards. unlike passive immunity
Currently, science has provided us ways to bioengineer certain new tissues and organs to replace those that do not work anymore or do work, but poorly. There are now bioengineered windpipes and skin, among many others. This is a breakthrough in science as this helps prevent infection, loss of a body function, or even death. There are still a few setbacks in the field, though, as with any other. One of which is the difficulty of engineering the larger and more complex organs, as these types of organs have very important and crucial functions in our bodies, which, if not done properly, may cause fatal complications. The skin gun is one of the controversial bioengineered works, as it is currently not fully efficient given its side effects.