family of tarsiers

Based on your results, which phenotype (brown or silver) would be more likely to appear in
the grandchildren? Explain your reasoning in at least a complete sentence, explaining what
you see in your previous answer. (2 points)
“Thank you!” Lhindsay exclaims. She runs off to tell Jherry and the other researchers the good
news, along with your additional information.
Part Five
The researchers are grateful that you have gotten this work done for them so that they can keep
conducting fieldwork in the forest. One day, the researchers find a family of tarsiers with red fur!
A new allele in the fur color gene must have appeared due to a change in the DNA of one of the
tarsiers. This new allele then got passed to the next generation. Lindsay is very excited by this
new discovery: “The red fur allele must have been created the… oh, what is the force of
evolution that is the only source of new alleles?”
15.
Help out Lhindsay: what is the force of biological evolution that is the only source of new
alleles? (1 points)

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Observations of the red fur tarsiers show that
they blend in better with the reddish brown
tree trunks in the environment compared to
both
the brown and silver fur tarsiers. This
means that the red fur tarsiers are less likely
to be caught and eaten by the tarsier-eating
hawks that patrol the forest.
16.
Given the above pattern over many
generations, would the red fur tarsiers be
more or less common compared to the
brown and silver tarsiers? (1 point)
You start documenting these results for the
team, but you need to recall the best vocabulary term to describe what is going on.
17.
The change in fur color trends of the tarsier population, due to each color affecting
reproductive success differently, is an example of which force of evolution? (2 points)
18.
You know that there are tarsiers living on the other side of the river where you found the red
fur tarsiers. Due to the rapid current of the river, the tarsiers on one side rarely meet the
tarsiers on the other. Is this an example of
high
or
low
gene flow between these two
groups? (1 point)

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{ Caption: The newly discovered red tarsier (still
fictional for this assignment!). }

Part Six
After filling in the details of your report, you join the research team to eat dinner and discuss the
findings under the big research tent. Lhindsay and Jherry thank you for being so helpful. The
primary investigator of this team, the P.I., strolls up to you and hands you a celebratory lumpia
(spring roll).
“Excellent work on the tarsier fur colors. The red fur tarsiers will really add to what we know
about this branch of primates, and all primates in general. We still don’t know if the new red fur
allele is dominant or recessive. If it is recessive, like the f allele, then only F will be dominant for
this gene, overriding the other alleles. If it turns out that the red fur allele is as dominant as the
brown fur allele… what is the word for that situation?”
19.
Impress the P.I.: what is the term for a gene where multiple alleles for a gene are dominant?
(1 point)
20.
If the red fur allele is also dominant, what could a tarsier look like if it had both the red allele
and the brown allele? (1 point)
“There is a chance that the fur gene affects more than just the fur color: eye color may be
affected as well! In that case, this one gene affects multiple traits.”
21.
What is the term for a gene that affects more than one trait? (1 point)
“There are so many complications to genetics beyond what we just went over. I know that you
have read the book
Essentials of Physical Anthropology
by Clark Spencer Larsen. He’s a great
professor! Do you recall what the book said about regulatory and structural genes?”

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22.
What is the definition of a regulatory gene? Use a complete sentence and rephrase the
definition from what the book says. (1 point)
23.
What is the definition of a structural gene? Use a complete sentence and rephrase the
definition from what the book says. (1 point)
24.
What is the name for the type of gene found in many different animals that controls the
development of body parts? (1 point)
Your Primary Investigator nods in contentment. “It’s been great chatting with you. I’m very
excited about analyzing these data and adding on to our scientific knowledge. To be honest, I’m
a little competitive. Another research team may discover the same things about tarsiers and
publish their discovery first. It’s like when Charles Darwin was almost too late in publishing his
work on natural selection because another researcher was following the same clues to the
same theory. Now, Darwin is the famous name for natural selection, while the other guy is less
well known. In fact, what was his name? Maybe you read an article about it.”
25.
Who was the researcher who almost announced his discovery of natural selection before
Charles Darwin did it? (1 point)
Part Seven
The next day, you stop by the nearby town of Corella to visit an Internet café and see what is
going on with social media. You received some messages from friends asking about what you
did recently in your research.

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26.
Write a short status message of around 150 words describing what you did and learned
while studying tarsiers as if you were really there. College-level writing is
not
required! Have
fun with it. (2 points)
Conclusion
The eventful field season concluded, you return home from the Philippines to turn in your
answer sheet. The researchers continue their work on finding more about tarsiers. They can
now test the new hypothesis that the red fur will become more common in the future. By careful
observation of the environment, scientists can make and test hypotheses about how the tarsier
genotype and phenotype are interrelated. This adds a little bit of new information to the existing
scientific knowledge. We will learn more about tarsiers later in the course!
Be sure to have answered every question in the answer sheet before submitting it on Canvas.

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Caption: The public market in Corella (it’s a real town!).

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