1. What are the dangers of small populations of a species from a genetic and evolutionary...
1. What are the dangers of small populations of a species from a genetic and evolutionary standpoint? What is the bottleneck effect?
2. How does speciation occur? What is the importance of geographic isolation? How is this illustrated in the Galapagos?
3. What is Darwinian Medicine and how does it help us better understand medical conditions?
Homework Answers
A small population of species decreases the chances of selective mating. This reduces the chances of evolution, and the population also are less capable to adust towards the surrounding environment.
If a large number of people are killed by natural disasters, the decreased size of original population results in bottle neck effect. The new population now have a restricted gene pool and only inherit the alleles passed by the small group of survived people.
Add Answer to:
1. What are the dangers of small populations of a
species from a genetic and evolutionary...
Of the following evolutionary forces; crossing over, directional selection, mutation, speciation, stabilizing selection, sex, gene flow...
Of the following evolutionary forces; crossing over, directional selection, mutation, speciation, stabilizing selection, sex, gene flow and genetic drift which promote or maintain genetic variation within a population? a) crossing over only b) directional selection and sex c) directional selection, mutation, and speciation d) crossing over, mutation, sex, and gene flow e) only sex Of the following evolutionary forces, crossing over, directional selection, mutation, speciation, stabilizing selection, sex, gene flow and genetic drift which promote genetic differentiation (divergence) among populations?...
24. Which of the following species concepts is defined by populations of interbreeding individuals that...
24. Which of the following species concepts is defined by populations of interbreeding individuals that are reproductively isolated from other populations? A. phylogenetic B. ecological C. biological D. morphologicalOn the Bahamian Island of Andros, mosquitofish populations live in now-isolated, freshwater ponds that were once united. Currently, some predator-rich ponds have mosquitofish with a body shape that allows them to swim in short, fast bursts. Other predator-poor ponds have mosquitofish with a body shape that allows them to swim continuously for a...
Could someone check my answers, please? 1. Suppose that a species of fish has split into...
Could someone check my answers, please? 1. Suppose that a species of fish has split into two populations in a lake: one on the eastern side and one on the western side. How could you determine whether the two populations constitute different species? A. Examine the populations for morphological, color, or other physical differences. B. Examine the populations for different genetic markers and allele frequencies. C. Attempt to breed members from the two populations in captivity. D. Introduce members from...
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and...
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and in small populations. Is this correct? Why or why not? Yes. Genetic drift is sampling error, and sampling error is unpredictable, no matter the population size. Yes. Small populations experience more sampling error, but large populations have more reproduction overall, leading to similar rates of allele frequency change. O No. In the ferret experiments, allele frequencies changed more quickly in the small populations than...
lab topic 13 watch on colony in the margin of your loba characteristics observed Repeat steps...
lab topic 13
watch on colony in the margin of your loba characteristics observed Repeat steps to with two additional species You partnerid e three dillerent species Observe Color Plates 15, 17. und 18. Describe the shape ang face, and color of these bacterial species c Results Labo 1. Complete Table 13.1 at the bottom of the pagesger F 1 to describe the three bacterial cultures you observed Ahora Discussion surfact characteristics found in the lab partner barved by you...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in a solution decreases, the hydroxide ion [OH -] concentration increases and the pH increases. decreases and the pH increases. increases and the pH decreases. decreases and the pH stays the same. decreases and the pH decreases. 1 points QUESTION 11 Environmental science is a theoretical approach in interpreting the environment. way to see the world in scientific terms. narrowly defined set of physical,...
With all this data i need help answering the questions in the last picture! I need help a...
With all this data i need help answering the questions in the last
picture!
I
need help answering these 5 questions from the article given
Specialien and the Alpple Magt Su, by Martin G. Kelly Department of Biology Buffalo State College Hawthorn trees grow throughout North America and they produce a small fruit which is eaten by a small fly larva. In 1864, apple growers discovered an unknown maggot had started feeding on apples. Through the years, hawthom and apple...
Lizards in the Cold Data Point Educator Materials Caption: Figure 1A shows the locations of the...
Lizards in the Cold
Data Point
Educator Materials
Caption:
Figure 1A shows the locations of the five anole lizard
populations in the study. Figure 2A shows the mean
CTmin (critical thermal minimum, the temperature
at which lizards lose their coordination) over time for two of the
populations. Figure 2B compares the mean CTmin
values for all five populations in the summers of 2013 (closed
circles) and 2014 (open circles). Asterisks indicate that the
CTmin for a population was significantly lower...
Testing and Screening Ken had just turned 40, and with a little encouragement from his wife,...
Testing and Screening Ken had just turned 40, and with a little encouragement from his wife, he decided that it was time to have a physical-it would be his first real visit to a doctor since he broke his arm as a kid. Seeing a doctor had not made sense to him before. He was in great shape, felt fine, and did not smoke. Maybe it was his 65-year-old father's sudden death from a heart attack just a few weeks...
Please read the article bellow and discuss the shift in the company's approach to genetic analysis....
Please read the article bellow and discuss the shift in the
company's approach to genetic analysis. Please also discuss what
you think about personal genomic companies' approaches to research.
Feel free to compare 23andMe's polices on research with another
company's. Did you think the FDA was right in prohibiting 23andMe
from providing health information?
These are some sample talking points to get you thinking about
the ethics of genetic research in the context of Big Data. You
don't have to...
Q3.3. Recall the prediction: Allele frequencies change by genetic drift equally quickly in large populations and in small populations. Is this correct? Why or why not? Yes. Genetic drift is sampling error, and sampling error is unpredictable, no matter the population size. Yes. Small populations experience more sampling error, but large populations have more reproduction overall, leading to similar rates of allele frequency change. O No. In the ferret experiments, allele frequencies changed more quickly in the small populations than...
lab topic 13
watch on colony in the margin of your loba characteristics observed Repeat steps to with two additional species You partnerid e three dillerent species Observe Color Plates 15, 17. und 18. Describe the shape ang face, and color of these bacterial species c Results Labo 1. Complete Table 13.1 at the bottom of the pagesger F 1 to describe the three bacterial cultures you observed Ahora Discussion surfact characteristics found in the lab partner barved by you...
With all this data i need help answering the questions in the last
picture!
I
need help answering these 5 questions from the article given
Specialien and the Alpple Magt Su, by Martin G. Kelly Department of Biology Buffalo State College Hawthorn trees grow throughout North America and they produce a small fruit which is eaten by a small fly larva. In 1864, apple growers discovered an unknown maggot had started feeding on apples. Through the years, hawthom and apple...
Lizards in the Cold
Data Point
Educator Materials
Caption:
Figure 1A shows the locations of the five anole lizard
populations in the study. Figure 2A shows the mean
CTmin (critical thermal minimum, the temperature
at which lizards lose their coordination) over time for two of the
populations. Figure 2B compares the mean CTmin
values for all five populations in the summers of 2013 (closed
circles) and 2014 (open circles). Asterisks indicate that the
CTmin for a population was significantly lower...
Testing and Screening Ken had just turned 40, and with a little encouragement from his wife, he decided that it was time to have a physical-it would be his first real visit to a doctor since he broke his arm as a kid. Seeing a doctor had not made sense to him before. He was in great shape, felt fine, and did not smoke. Maybe it was his 65-year-old father's sudden death from a heart attack just a few weeks...
Please read the article bellow and discuss the shift in the
company's approach to genetic analysis. Please also discuss what
you think about personal genomic companies' approaches to research.
Feel free to compare 23andMe's polices on research with another
company's. Did you think the FDA was right in prohibiting 23andMe
from providing health information?
These are some sample talking points to get you thinking about
the ethics of genetic research in the context of Big Data. You
don't have to...
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