Immune System – “Measles Strikes Again!” Use the vocabulary terms and information from your guided notes to complete the blanks in this story. Number 1-15 on the left side page of your Interactive Journal. Work with a partner if needed.

Brian, a college student, stopped by one afternoon to visit his friends Tom and Alicia and their 2-year-old daughter Samantha. Little did any of them suspect that Samantha was coming down with the measles. She has not yet been immunized, and she had caught the virus from a little boy in her day-care group.

Brian has never had the measles and had never been vaccinated. Once he had been exposed to Samantha and his 1 defenses such as the 2 in his nose had been passed, it was too late to do anything. Brian soon experienced 3, or an elevated temperature, and swelling from 4. Now it was up to the 5 response to fight the invading viruses.

White blood cells called 6 and 7 carry out the specific immune response. Both types of cells were involved in defending Brian’s body against the measles virus. 8 engulfed or surrounded the virus particles. The viruses’ outer surface contained protein 9 that were foreign molecules to Brian’s body which triggered his immune response. The B cells produced specific 10 that could bind to the virus antigens, which also triggered the 11 to attack and kill Brian’s own virus-infected cells. However, Brian continued to have measles symptoms while his immune system was at work. He asked his doctor for an 12, but was told this chemical would be ineffective.

However, after he recovered, Brain was 13 to any future attack by the measles virus. Because of his experience with this virus, he suggested that his family members all get the measles 14 to prevent contracting it. Since the preparation was made using part of the virus instead of antibodies, this injection will be a type of 15 immunity. Although he was now protected from the measles virus, he still caught a cold the day before his math final exam.

Use the following Key Terms to complete The Immune

System Classwork.
-T Cells -Vaccine -Phagocytes -Passive
-Nonspecific Immune -B Cells -Fever
-T Cells -Inflammation -Mucous Membranes
-Immune -Antibiotic -Specific Immune
-Antigens -Antibodies

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

    elongation: in which is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

    termination: in which is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

the correct answer is sex-linked recessive.

i just took the test

. ph changes the ability of them he enzyme to dissolve in water.