Euglena are like all other cells because they<span> grow and reproduce. They obtain nutrients by taking in other microorganisms an make their own food by using the energy from sunlight.</span>
At this point in time, we have yet to reach the carrying capacity for humans. So yes there is a carrying capacity for humans we just haven't reach it yet.
Answer:
The autosomal trait are present on the autosomes and does not have any influence on the sex of the organism. Two main types of autosomal trait are autosomal dominant and autosomal recessive trait.
a. The trait discussed in the question must be the autosomal dominant trait. As the normal and affected children are produced by the affected parents cross. The appearance of the normal child determines that the trait is dominant.
b. Since both the parent are affected but the normal child has been produced from the cross. The parents must be heterozygotes for the trait, (Aa). Their cross will produce the progeny AA, Aa and Aa (affected) and aa (normal).
Mutation may occur if both copies of DNA molecules do not have the exact same sequence of nucleotides as the original DNA molecule. Mutation can also lead to further problems, in the future.