Homework Answers
Answer :- option b). Two sets of beta chain D-J segments per chromosome.
V(D)J is the specific mechanism of genetic recombination which occurs only during the early stages of T and B cell maturation in developing lymphocytes. It requires somatic recombination, resulting in the widely diverse repertoire of antibodies / immunoglobulins and T-cell receptors (TCRs) found respectively in B cells and T cells. The adaptive immuation cycle is a defining feature.
Add Answer to:
7-3 Developing a:B T cells are better at successfully coding for a ß chain than developing...
co é o ó 7-1 A typical a:ß T cells undergoing development in the thymus successfully...
co é o ó 7-1 A typical a:ß T cells undergoing development in the thymus successfully rearranges ß chain gene segments to code for a ß chain. Within the T cell, the ß chain will next interact with a pre-T alpha (pTa) protein to make a pre-T cell receptor interact with an alpha chain resulting in allelic exclusion interact with an alpha chain and undergo negative selection signal for the end of TDT expression during TCR formation co é All...
Could you help with any of these ? and provide an explanation so I'll understand? thank...
Could you help with any of these ? and provide an explanation
so I'll understand? thank you so much
Circle all that apply 1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules...
The observation that in any DNA sample, A T and G C A. DNase sequencing An...
The observation that in any DNA sample, A T and G C A. DNase sequencing An analytical method that determines which segments of DNA are bound by a particular B. Chargaff's rule protein factor, such as a transcription factor C. ChIP sequencing D. Euchromatin E. Histone acetylation F. major groove - # Areas associated with a eukaryotic gene that are where most DNA methylation occurs. # An analytical technique that involves a small slide or chip with many segments of...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!! 1) A patient has inherited two defective genes for...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
This pathway to complement activation can be initiated by several different signals including the properdin/factor P...
This pathway to complement activation can be initiated by several different signals including the properdin/factor P activation pathway The classical pathway The alternative pathway Lectin pathway All of the above The mechanism that permits Ig to be synthesized in either a membrane-bound or secreted form is: Allelic exclusion Codominant expression The one-turn/two-turn joining rule Differential RNA processing Which of the following allows for recombination in the V(D)J coding regions? IL-2b TdT RAG-½ All of the above Generation of combinatorial diversity...
7. Your genes partly determine your physical characteristics, but the environment you live in also plays...
7. Your genes partly determine your physical characteristics, but the environment you live in also plays a role. a. True--Some genes can be altered by environmental features. b. False--Your genes completely determine your physical characteristics. c. Scientists aren't sure what determines an individual's characteristics d. False-The environment plays no role e. True-In fact the environment always alters genetic characteristics. 8. Choose the correct sequence starting with the smallest unit: a. DNA, gene, allele, chromosome, nucleotide b. Chromosome, gene, allele, nucleotide,...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY 5-1 T cells recognize antigen when the antigen a. forms...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
Yet, all the cells in your body contain the same genes (and same alleles). The difference...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
Which of the following is TRUE of incomplete penetrance? Select one: a. Epistatic interactions can result...
Which of the following is TRUE of incomplete penetrance? Select one: a. Epistatic interactions can result in incomplete penetrance in some cases. b. Environmental factors do not influence penetrance. c. Incomplete penetrance implies that some individuals will experience less severe forms of disease, such as cancer or Alzheimer's. d. Incomplete penetrance is never observed with Huntington's disease e. Incomplete penetrance refers to cases in which individuals developing a particular disease (e.g., cancer or Alzheimer's) lack the typical genotype for this...
co é o ó 7-1 A typical a:ß T cells undergoing development in the thymus successfully rearranges ß chain gene segments to code for a ß chain. Within the T cell, the ß chain will next interact with a pre-T alpha (pTa) protein to make a pre-T cell receptor interact with an alpha chain resulting in allelic exclusion interact with an alpha chain and undergo negative selection signal for the end of TDT expression during TCR formation co é All...
Could you help with any of these ? and provide an explanation
so I'll understand? thank you so much
Circle all that apply 1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules...
The observation that in any DNA sample, A T and G C A. DNase sequencing An analytical method that determines which segments of DNA are bound by a particular B. Chargaff's rule protein factor, such as a transcription factor C. ChIP sequencing D. Euchromatin E. Histone acetylation F. major groove - # Areas associated with a eukaryotic gene that are where most DNA methylation occurs. # An analytical technique that involves a small slide or chip with many segments of...
ANSWER ALL THE QUESTIONS FULLY AND CORRECTLY!!!
1) A patient has inherited two defective genes for TAP2 (remember the case study from before) Which of the following are true? (circle all that apply): - The patient will have a scarcity of CD4+ T helper cells -MHC class I molecules will not be expressed to any extent on the patient's cells -MHC class II molecules will be reduced in expression - The patient will have an impaired ability to fight viral...
7. Your genes partly determine your physical characteristics, but the environment you live in also plays a role. a. True--Some genes can be altered by environmental features. b. False--Your genes completely determine your physical characteristics. c. Scientists aren't sure what determines an individual's characteristics d. False-The environment plays no role e. True-In fact the environment always alters genetic characteristics. 8. Choose the correct sequence starting with the smallest unit: a. DNA, gene, allele, chromosome, nucleotide b. Chromosome, gene, allele, nucleotide,...
ANSWER ALL QUESTIONS FULLY AND CORRECTLY
5-1 T cells recognize antigen when the antigen a. forms a complex with membrane-bound MHC molecules on another host-derived cell b. is internalized by T cells via phagocytosis and subsequently binds to T-cell receptors in the endoplasmic reticulum c. is presented on the surface of a B cell on membrane-bound immunoglobulins d. forms a complex with membrane-bound MHC molecules on the T cell e. bears epitopes derived from proteins, carbohydrates, and lipids. 5-2 a....
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
Most questions answered within 3 hours.
-
You are a member of an alpine rescue team and must get a box of
supplies,...
asked 1 minute ago -
Where the conservation of biodiversity is concerned, can I be
assisted with these questions:
1. What...
asked 2 minutes ago -
A 79-Ω loudspeaker, a 8.0-Ω loudspeaker, and a 3.7-Ω loudspeaker
are connected in parallel across the...
asked 33 minutes ago -
If X has a normal distribution with mean µ =
12 and variance σ2 = 9,...
asked 41 minutes ago -
An example of an operational taxonomic unit
(OTU) is
a. Multiple sequence alignment.
b. Protein sequence....
asked 43 minutes ago -
Electrons flow through a 2.7-mm-diameter aluminum wire at
2.5×10−4 m/s .
How many electrons move through...
asked 42 minutes ago -
For a recent year, McDonald’s (MCD)
company-owned restaurants had the following sales and expenses (in
millions):...
asked 41 minutes ago -
In a sample of 15 men, the mean height was 171 cm. In a sample
of...
asked 43 minutes ago -
In this exercise, we will be refactoring a working program. Code
refactoring is a process to...
asked 2 hours ago -
3
researchers at Cambrige looked at 5,000 firms in Englans and found
that, in terms of...
asked 2 hours ago -
why it is important and how it integrates within ERP? And what
the core challenges of...
asked 4 hours ago -
A strawberry farmer determines that the average weight of
individual strawberries produced by plants in his...
asked 4 hours ago