Answer:
Because it is only possible to be 100% sure that two species are closely related, in genetic terms, when the DNAs of these species can be analyzed. This analysis is only possible through molecular tests.
Explanation:
Molecular tests are bikini techniques that can analyze species at the molecular level, more specifically, these tests can deeply analyze the DNA (or RNA and proteins) of a species giving precise results on the molecule and allowing scientists to study it deep.
In studies, where the scientist wants to know how the species are genetically related, it is common for molecular tests to be introduced, as a way for the scientist to be 100% sure of the relationship between the species.
Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts".
Explanation:
Yes, all ecosystems need to have a top predator (quaternary consumers) so that the cycle of the food chain can stay complete.
Among reported cases through May 17, 90% were unvaccinated or their vaccination status was unknown. Fifty-five (6%) cases were acquired outside of the U.S. (international importations) and 825 (94%) were acquired in the U.S. Most cases (94%) were related to outbreaks and 75% were related to outbreaks in New York City and New York State.
Answer:
<em>What are the allele frequencies in this population?</em>
- Frequency of S = 0.625
- Frequency of s = 0.375
<em>In the next generation of 1000 hamsters, what are the expected genotype frequencies?</em>
- Frequency (SS) = 0.39
- Frequency (Ss) = 0.47
- Frequency (ss) = 0.14
<em>What are the expected number of each genotype in the next 1000 hamsters?</em>
- Individuals SS = 390
- Individuals Ss = 469
- Individuals ss = 140
<em>Have the allele frequencies changed?</em> No, they are the same
<em>Is the population in Hardy-Weinberg equilibrium?</em> Yes, it is.
<em>The expected genotype frequency of Ss (2pq) in the next generation is expected to be: </em>0.469 (option a)
<em>The expected number of smooth fur hamsters (SS) in the next generation of 1000 hamsters is</em>: 390
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
