1. Describe four factors that can account for the variations in gene expression that we observe...
1. Describe four factors that can account for the variations in gene expression that we observe between individuals. Explain how these factors impact differences in the expression levels of enzymes involved in glucose metabolism across a group of individuals.
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1. Describe four factors that can account for the variations in
gene expression that we observe...
In eukaryotic cells, there are specific transcription factors (activators) that regulate gene expression. Describe the organization...
In eukaryotic cells, there are specific transcription factors (activators) that regulate gene expression. Describe the organization of eukaryotic genes (i.e. promoters/enhancers) and how transcription factors are able to control gene expression and enzyme activity. a) Throughout the course we discussed the enzyme lactase and how it is differently regulated (and therefore expressed) in different human populations. Describe how this gene is differently expressed in different populations and when this/these change(s) are predicted to have taken place. b) Differential gene expression...
1. One way that gene expression is regulated is in the remodeling of chromatin. Describe the...
1. One way that gene expression is regulated is in the
remodeling of chromatin. Describe the three mechanisms of changes
in the structure of the nucleosome as well as the effect of
acetylation and methylation on gene expression?
2. Describe the impact of deletion, duplication, inversion and
translocation on chromosome structure and gene expression of those
chromosomes?
3. Explain how ATP is produced in respiration?
Please help with this picture below as well! It’s a gram
positive and negative bacteria.
Two genes (B and C) are transcription factors that affect the expression of gene A. The...
Two genes (B and C) are transcription factors that affect the expression of gene A. The protein product of gene B allows gene A to be transcribed while the protein product of gene C doubles the rate of transcription of gene A. How does the expression of gene A differ between two individuals with the following genotypes? Assume lower case alleles produce non-functional proteins and each gene shows complete dominance. Individual 1: AA : BB : Cc Individual 2: AA...
A number of different genetic variations can result in differences in sex differentiation, such that there are biological females who are genetically 46, XY and biological males who are 46, Xx. O...
A number of different genetic variations can result in differences in sex differentiation, such that there are biological females who are genetically 46, XY and biological males who are 46, Xx. One example of this is 46, xx SRY-negative males. These individuals do not have an SRY gene in their genome, but often have mutations or other conditions such that they cannot respond to estrogen where testosterone is produced at high levels even without SRY, or other signals are altered...
Describe an example of osmosis that we can observe in real life. Explain what is happening...
Describe an example of osmosis that we can observe in real life. Explain what is happening at the cellular level, including what is moving across the cell membranes and in which direction (in or out of the cells)?
1. Compare and contrast regulation of gene expression due to RNA splicing and due to translation...
1. Compare and contrast regulation of gene expression due to RNA splicing and due to translation regulators. 2. Briefly explain four different factors that can cause a population to not follow the Hardy-Weinberg law. 3. Give two examples of stabilizing natural selection and two examples of directional natural selection. 4. Explain what each term in the following equation means: VP = VA + VD + VI + VE + V GXE 5. Briefly describe the experiments involved in studying the...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete each sentence using the words provided.In some cells, DNA combines with proteins to form a substance calledThe lowest level of chromatin structure consists of DNA wrapped twice around a group of histones to form a(n)The formation of nucleosomes may block the binding of transcription factors and RNA polymerase II to theThe structure of chromatin can be modified by altering either the DNA or the...
1. Describe how bacteria regulate genes through operons. 2. What is the difference between a repressible...
1. Describe how bacteria regulate genes through operons. 2. What is the difference between a repressible and inducible genetic system? 3. Expression of the Lac operon is under the controls of (1) the Lacl repressor and (2) CAP. Consider each of the following conditions and determine which factors will be acting on the operon. Predict the rate of gene expression. Conditions Lac Operon fon" or "off" CAP present" or "absent" at Lac Operon Predict the rate of gene expression (none,...
1. Describe the location and functions of body fluids, including the factors that affect variations in...
1. Describe the location and functions of body fluids, including the factors that affect variations in fluid compartments. 2. Describe the functions, regulation, sources, and losses of the main electrolytes of the body. 3. Explain the principles of osmosis, diffusion, active transport, and filtration. 4. Describe how thirst and the organs of homeostasis (kidneys, heart and blood vessels, lungs, adrenal glands, pituitary gland, parathyroid glands) function to maintain fluid homeostasis. 5.Describe the role of buffer systems and respiratory and renal...
1) Explain how eukaryotic gene expression is controlled from a distance 2) Describe the experiments that...
1) Explain how eukaryotic gene expression is controlled from a distance 2) Describe the experiments that showed all differentiated cells contain all the genetic instructions to direct the formation of a complete organism. 3) Explain the structure of tryphtophan operon and how this operon is regulated at the low and high concentration of tryphtophan.
1. One way that gene expression is regulated is in the
remodeling of chromatin. Describe the three mechanisms of changes
in the structure of the nucleosome as well as the effect of
acetylation and methylation on gene expression?
2. Describe the impact of deletion, duplication, inversion and
translocation on chromosome structure and gene expression of those
chromosomes?
3. Explain how ATP is produced in respiration?
Please help with this picture below as well! It’s a gram
positive and negative bacteria.
A number of different genetic variations can result in differences in sex differentiation, such that there are biological females who are genetically 46, XY and biological males who are 46, Xx. One example of this is 46, xx SRY-negative males. These individuals do not have an SRY gene in their genome, but often have mutations or other conditions such that they cannot respond to estrogen where testosterone is produced at high levels even without SRY, or other signals are altered...
1. Compare and contrast regulation of gene expression due to RNA splicing and due to translation regulators. 2. Briefly explain four different factors that can cause a population to not follow the Hardy-Weinberg law. 3. Give two examples of stabilizing natural selection and two examples of directional natural selection. 4. Explain what each term in the following equation means: VP = VA + VD + VI + VE + V GXE 5. Briefly describe the experiments involved in studying the...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete each sentence using the words provided.In some cells, DNA combines with proteins to form a substance calledThe lowest level of chromatin structure consists of DNA wrapped twice around a group of histones to form a(n)The formation of nucleosomes may block the binding of transcription factors and RNA polymerase II to theThe structure of chromatin can be modified by altering either the DNA or the...
1. Describe how bacteria regulate genes through operons. 2. What is the difference between a repressible and inducible genetic system? 3. Expression of the Lac operon is under the controls of (1) the Lacl repressor and (2) CAP. Consider each of the following conditions and determine which factors will be acting on the operon. Predict the rate of gene expression. Conditions Lac Operon fon" or "off" CAP present" or "absent" at Lac Operon Predict the rate of gene expression (none,...
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