Cancer is a disease caused by mutation. Does this mean that cancer is inescapable for all...
Cancer is a disease caused by mutation. Does this mean that cancer is inescapable for all humans if we simply live long enough? If cancer results from these genetic mutations, is the development of this disease inevitable? Are we able to detect and avoid this disease, or will it occur regardless?
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Cancer is a disease caused by mutation. Does this mean that
cancer is inescapable for all...
please select answer from options given in [] and are bold, there are 3 parts Cancer...
please select answer from options given in [] and are bold, there are 3 parts Cancer can be described as ["a genetic", "an infectious"] disease which results from ["mutations in multiple different genes", "a single gene mutation"] that occur primarily in ["somatic", "germ"] cells
Consider a spontaneous mutation in the gene HER2, a tumor suppressor involved in cell cycle control...
Consider a spontaneous mutation in the gene HER2, a tumor suppressor involved in cell cycle control Mutations happen at a rate of about 1 error per 109 bases per generation. A spontaneous deleterious mutation must occur in HER2 specifically, and not in another gene. The likelihood that a spontaneous mutation is deleterious and could lead to cancer depends on the number of mutable bases in HER2, the fraction of bases that will affect the function of HER2, and that both...
How is forest fragmentation linked to the rise of Lyme disease? Lyme disease is caused by...
How is forest fragmentation linked to the rise of Lyme
disease?
Lyme disease is caused by infections of the bacterium
Borrelia burgdorferi which is transferred to humans via
blood-sucking bites from the tick, Ixodes scapularis. Lyme
disease can cause flu-like symptoms in the short term and more
serious illnesses in the long term, if not treated. Why is Lyme
disease on the rise in eastern North America?
Part A
A letter to the editor in a local newspaper asserts that...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y chromosomes pair up in cells of males prior to cell division 2. Familial breast cancer is caused by mutations in the BRCA1 gene which is located on human chromosome 17. Females with a mutation in BRCA1 gene have an 80% lifetime risk of developing breast cancer. Therefore, out of 100 women who carry the disease-causing mutation, only 80 will develop breast cancer. Why is...
QUESTION 13 Which of the following would occur if a mutation caused Kinase 1 to be...
QUESTION 13
Which of the following would occur if a mutation caused Kinase 1
to be unable to be phosphorylated? (Select all)
RTK would bind VEGF
RTK would phosphorylate itself
RAS would become active
The phosphorylation cascade would occur
The endothelial cell would divide
0.2 points
QUESTION 14
Imagine that an endothelial cell has a mutation in several of
the enzymes that perform mismatch repair. The endothelial cell
replicates its DNA and then divides into two cells. The resulting...
Part III: Dr. Hernandez sits down with Ann and her partner. The doctor is sorry to...
Part III: Dr. Hernandez sits down with Ann and her partner. The doctor is sorry to report that Ann has breast cancer; however, because it was caught early and responds to estrogen and progesterone, the prognosis is good. At this point it looks like the cancer is stage 1. However, as Ann is young, the doctor wants to perform a couple tests. The first test is a genetic sequencing test for BRCA1 and BRCA2, as well as testing for other...
QUESTION 7 What are the potential consequences of un-repaired DNA damage (i.e. mutations) (select all that...
QUESTION 7 What are the potential consequences of un-repaired DNA damage (i.e. mutations) (select all that apply)? A. Somatic mutations lead to changes in fitness for the affected individual ONLY B. Germ line mutations lead to cancer or other disease in the affected individual ONLY OC. Somatic mutations lead to cancer or other disease in the affected individual ONLY D. Germ line mutations lead to generation of new alleles that are passed on to the progeny E. Germ line mutations...
Which condition can lead to two populations becoming different species? all of these A barrier to...
Which condition can lead to two populations becoming different species? all of these A barrier to gene flow exists between the two populations. Individuals in the two populations have significant genetic differences from one another. Individuals may live in geographically isolated areas. Individuals in the two populations mate at different times. Which of these is NOT an example of adaptive evolution? bottleneck all of these gene flow founder effect Mutation Which of these does NOT influence allele frequencies in a...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects one in every 500 African American children born in the U.S. One in every ten African Americans is a carrier for the recessive allels. Although sickle cell disease is caused by a single human gene, it is expressed through many different effects throughout the body. The presence of a recessive sickle-cell allele in humans causes the red blood cells to produce abnormal hemoglobin protein...
please answer all the question to get a like. Part III Dr. Hernandez sits down with...
please answer all the question to get a like. Part III Dr. Hernandez sits down with Ann and her partner. The doctor is sorry to report that Ann has breast cancer; however, because it was caught early and responds to estrogen and progesterone, the prognosis is good. At this point it looks like the cancer is stage 1. However, as Ann is young, the doctor wants to perform a couple of tests. The first test is a genetic sequencing test...
Consider a spontaneous mutation in the gene HER2, a tumor suppressor involved in cell cycle control Mutations happen at a rate of about 1 error per 109 bases per generation. A spontaneous deleterious mutation must occur in HER2 specifically, and not in another gene. The likelihood that a spontaneous mutation is deleterious and could lead to cancer depends on the number of mutable bases in HER2, the fraction of bases that will affect the function of HER2, and that both...
How is forest fragmentation linked to the rise of Lyme
disease?
Lyme disease is caused by infections of the bacterium
Borrelia burgdorferi which is transferred to humans via
blood-sucking bites from the tick, Ixodes scapularis. Lyme
disease can cause flu-like symptoms in the short term and more
serious illnesses in the long term, if not treated. Why is Lyme
disease on the rise in eastern North America?
Part A
A letter to the editor in a local newspaper asserts that...
1. In humans, X and Y chromosomes are technically not homolous Explain how X and Y chromosomes pair up in cells of males prior to cell division 2. Familial breast cancer is caused by mutations in the BRCA1 gene which is located on human chromosome 17. Females with a mutation in BRCA1 gene have an 80% lifetime risk of developing breast cancer. Therefore, out of 100 women who carry the disease-causing mutation, only 80 will develop breast cancer. Why is...
QUESTION 13
Which of the following would occur if a mutation caused Kinase 1
to be unable to be phosphorylated? (Select all)
RTK would bind VEGF
RTK would phosphorylate itself
RAS would become active
The phosphorylation cascade would occur
The endothelial cell would divide
0.2 points
QUESTION 14
Imagine that an endothelial cell has a mutation in several of
the enzymes that perform mismatch repair. The endothelial cell
replicates its DNA and then divides into two cells. The resulting...
QUESTION 7 What are the potential consequences of un-repaired DNA damage (i.e. mutations) (select all that apply)? A. Somatic mutations lead to changes in fitness for the affected individual ONLY B. Germ line mutations lead to cancer or other disease in the affected individual ONLY OC. Somatic mutations lead to cancer or other disease in the affected individual ONLY D. Germ line mutations lead to generation of new alleles that are passed on to the progeny E. Germ line mutations...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects one in every 500 African American children born in the U.S. One in every ten African Americans is a carrier for the recessive allels. Although sickle cell disease is caused by a single human gene, it is expressed through many different effects throughout the body. The presence of a recessive sickle-cell allele in humans causes the red blood cells to produce abnormal hemoglobin protein...
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