WGU C785 Foundational Pre-Assessment Exam Questions with a focus on Module One and Key Marking Scheme 2024
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Course
WGU C785
Institution
WGU C785
WGU C785 Foundational Pre-Assessment Exam Questions with a focus on Module One and Key Marking Scheme 2024
Genotype - correct answer complete set of genes for a characteristic or trait
Homozygous genotype - correct answer arises from two identical alleles (ex. BB, bb
Heterozygous genotyp...
WGU C785 Foundational Pre-
Assessment Exam Questions with a
focus on Module One and Key
Marking Scheme 2024
Genotype - correct answer complete set of genes for a characteristic or trait
Homozygous genotype - correct answer arises from two identical alleles (ex. BB, bb
Heterozygous genotype - correct answer arises from two variations of alleles (ex. Bb)
When is the 5' prime end cap added? - correct answer during transcription
When is the (poly (A) tail) 3' prime end added? - correct answer After termination of transcription
Transcription - correct answer When information in a particular section of DNA is needed, the cell makes an RNA copy of that DNA section and that carries the information out of the nucleus to the rest of the cell.
Promoter - correct answer The initiation of RNA synthesis requires a specific DNA sequence at a site known as a promoter. The promoter is located just upstream of a gene and is the binding site for transcription factors that recruit the RNA polymerase
Transcription steps - correct answer = promoter(by start site)--->RNA polymerase recuitment---->RNA polymerase separates strand(TRANSCRIPTION BUBBLE)--->RNA synthesis by RNA polymerase matching right nucleotides---->RNA released
-The initiation of RNA synthesis requires a specific DNA sequence at a site known as a promoter. (start site) -The DNA sequence at the promoter is recognized by specific proteins called transcription factors, which recruit RNA polymerase to the transcription start site. - RNA polymerase separates the two DNA strands in a small portion of the DNA molecule to form a TRANSCRIPTION BUBBLE, thus allowing it to access the template strand and begin RNA synthesis. -RNA polymerase then creates a short DNA-RNA hybrid at its center that matches the correct RNA nucleotides to the DNA sequence it is transcribing
-cap to the 5' end is placed. Poly-tail added
-splicing takes place
-Once the RNA is finished being made, the newly synthesized RNA is released as a single-stranded molecule.
Coding DNA strand (non template) is the same as _______ - correct answer mrna strand
Non-coding (template) strand - correct answer 3'------>5'
RNA Polymerase - correct answer -The primary enzyme involved in transcription that reads the DNA sequence of a gene and produces a complementary mrna molecule
-RNA polymerase separates the two DNA strands in a small portion of the DNA molecule to form a transcription bubble, thus allowing it to access the template strand and begin RNA synthesis.
Polyadenylated (Poly-A) Tail - correct answer a polyadenylated (poly-A) "tail" at the 3' end. The 5' cap is added to the 5' end of the nascent RNA during transcription, but the poly-A tail is added to the 3' end of the RNA only after transcription termination. The capping and poly-A tail serve to protect the mrna from degradation once it
leaves the nucleus, as well as identify it as a mature mrna ready to be translated.
Splicing - correct answer -The process in which portions of an mrna sequence called introns (intervening sequences) are removed, and the remaining portions of the gene (expressed sequences, or exons) are joined together.
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