How does the science of genetics relate to the future of biology and society? Discuss examples and techniques employed today.
In: Biology
In: Biology
In: Biology
How would a dietary resin that absorbs bile salts reduce plasma cholesterol levels?
In: Biology
In: Biology
Explain how the primary transcript of a single eukaryotic gene can produce different proteins, using Drosophila sex-specific courting behavior as an example.
Briefly describe how genomic imprinting can be inferred from inheritance patterns in human pedigrees.
In: Biology
What are the names of the stem cell niche in leaves and roots, and when during plant development are they first formed?
In: Biology
can you put this in your own words?
Our class was divided into three groups and everyone followed the same procedure and steps. Each group had to keep track of their daphnia’s rate of growth based on how many lives and reproduce and how many die. To start off with this experiment, we had to come up a group name and then filled the “Daphnia life history data sheet” on which we recorded all our group member’s phone numbers and the date each person was responsible for collecting the information. We had total of seven 50 ml of plastic tube and we had them all labeled with our group name and the density of Daphnia. The tubes were labeled as follows: two tubes -1 D. magna per 2.0 ml of water, one tube – 1 D. magna per 1.0 ml of water and one tube of 1 D. magna per 0.5 ml of water. After that, we filled all of the tubes with 6 to 8 ml of well water that was in a big container. Throughout this whole experiment we used well water whenever we had to add water to the tubes. Then, our instructor provided us with three-day old Daphnia and after that we added Daphnia to the assigned tubes which are as followed: we added 5 Daphnia to tube labeled 1 D. magna per 2.0 ml of water and tube labeled 1 D. magna 1.0 ml of water received 5 daphnia each. Then these three-day old daphnia were obtained by placing egg in well water and collecting all the offspring that appeared during the next 24 hours. Then, we separated the adults form the babies and transfer the number of baby daphnia from their nursey to tube with a clean plastic dropper. We had to be really carefully when making the transfer so we don’t injure the daphnia. be careful to ensure that the tip of the dropper in submerged in the water before releasing the daphnia into your tubes. air bubbles can get trapped under the daphnia's carapace if you allow them to be exposed to the air. the, adjust the volume of water in each tube to 10 ml by adding or removing sufficient water with a dropper.
In: Biology
Convert alanine to the amino acid with the most rigid backbone. Use neutral groups.
In: Biology
In: Biology
As the cancer expert in the Biology Department at your school, NBC news contacts you to discuss the effects of bisphenol A (BPA) exposure on cancer risk. The reporter is very interested as she has read several articles on this topic. In particular she wants you to explain the following:
she has read that a combination of BPA with a high fat diet increase the risk of the offspring developing cancer while intake of some natural products (e.g., curcumin) can reduce the risk developing BPA-associated cancers. Can you design an in vivo study looking at the actions of BPA alone or in combination with either high fat diet or curcumin on mammary tumors in mice
In: Biology
These are all part of one question so it can be answered in paragraph format:
1. How is a theory different from a hypothesis?
2. How is a virus different from a bacterium?
3. Do viruses evolve?
4. List various factors that affect the current spread of COVID-19 in the biosphere.
5. How is correlation different from causation - particularly as
it relates to the webquest below:
Recently reports have come out in the media and from scientists
that people who have been vaccinated against with the MMR vaccine
(particularly against measles) have a lower risk of developing
SARS-CoV-2 (or least with a less serious infection).
GO DO A WEB QUEST OUT THERE ON THE INTERNET AND RESEARCH THIS A BIT. BE PREPARED TO ARGUE WHETHER OR NOT YOU THINK THIS IS CORRELATION OR CAUSATION
In: Biology
Bob and Mary both suffer from Sickle Cell Disease, an autosomal recessive condition (they have the condition - they are not just carriers). They met in a support group and against their doctor's advice, decide to have a child. What is the probability that their child will NOT have Sickle Cell Disease?
33% |
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0% |
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75% |
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50% |
||
25% |
The _____ checkpoint can only be passed if the right growth factors have been received from other cells
G1/S |
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G2 |
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G2/M |
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S |
The protein hemoglobin, which carries oxygen in red blood cells, is a protein complex that consists of 4 separate subunits encoded by 2 genes: One gene encodes the two alpha-globin subunits while the other encodes the two beta-globin subunits. Four functional subunits (2 of each kind) are needed for a functional complex.
If a person carries just one mutant allele for alpha-globin, any complexes containing a copy of the mutant protein are nonfunctional, even if the other alpha-globin subunit is normal. As a result, almost all the hemoglobin produced is nonfunctional.
This is an example of a mutation.
leaky / hypomorphic |
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gain of function / neomorphic |
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gain of function / hypermorphic |
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dominant negative / antimorphic |
What gametes are possible from the parental genotype XXYyZz?
SELECT ALL THAT APPLY, but be aware that incorrect choices count against you.
XYZ |
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XYz |
||
XyZ |
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xYZ |
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xxyyzz |
||
xYz |
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Xyz |
||
xyz |
In: Biology
In: Biology
Biochemistry Question
In hypoglycemia, the liver is not utilizing glucose as an energy
source while the rest of the body continues to use glycolysis to
generate ATP. Explain in detail why this happens. Also, why is the
liver not using glucose?
In: Biology