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WGU C785 Final Exam 2024 Questions With Complete Solutions(Guaranteed Success)

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WGU C785 Final Exam 2024 Questions With Complete Solutions(Guaranteed Success) Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for their kids? - correct ans...His daughters would be carriers. This is x-link recessive. Autosomal: Dominant: - correct ans......

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WGU C785 Final Exam 2024 Questions With Complete
Solutions(Guaranteed Success)

Hemophilia Pedigree - Father has hemophilia, mother does not. What is the outcome for
their kids? - correct ans...✔✔His daughters would be carriers. This is x-link recessive.

Autosomal:
Dominant: - correct ans...✔✔Autosomal: males and females equally affected.
Dominant: non-carrier parents

polymerase chain reaction (PCR) - correct ans...✔✔The process of copying DNA in
the lab. Uses Template DNA, Nucleotides (dNTPS), DNA Polymerase, and DNA
primers.

3 Steps of PCR - correct ans...✔✔1. Denaturation: DNA is heated to 95C to separate it.
2. Annealing: reaction is cooled to 50C; primers stick to the DNA you want to copy and
add DNA polymerase.
3. Elongation: reaction heated to 70C and DNA polymerase, adding nucleotides building
a new DNA strand.

Base Excision Repair (BER) - correct ans...✔✔How you repair a mutation. BER is used
to repair damage to a base caused by harmful molecules. You remove the base that is
damaged and replace it. *BER removes a single nucleotide*
DNA glycolsylase - sees damaged DNA and removes it.
DNA polymerase-puts the right one back in while DNA ligase seals it.

Mismatch repair (MMR) occurs during: - correct ans...✔✔replication. DNA polymerase
proofreads but sometimes a mismatch pair gets through. MMR removes a large section
of the nucleotides from the new DNA and DNA polymerase tries again. (Ex: C-T instead
of C-A)

Mismatch Repair corrects what kind of DNA damage? - correct ans...✔✔When a base
is mismatched due to errors in replication. Such as G-T instead of G-C. DNA
polymerase comes by and fixes it.

What happens when DNA polymerase binds to DNA to make RNA? - correct ans...✔✔
TRANSCRIPTION! DNA polymerase takes the individual nucleotides and matches them
to the parental sequences to ensure a correct pair. It must bind with RNA primer to
work.

What is needed for DNA replication? - correct ans...✔✔DNA polymerase




A GRADESOLUTIONS

, Nonsense Mutation - correct ans...✔✔Change in 1 nucleotide produces a STOP codon
Stop= nonsense because it is no more.

Silent Mutation - correct ans...✔✔Change in 1 nucleotide but codes for the same amino
acid. Silent= the change doesn't change the name of the protein

Missense Mutation - correct ans...✔✔Change in 1 nucleotide leads to a code for a
different amino acid. Missense = mistake was made.

What happends during RNA splicing? - correct ans...✔✔During RNA splicing introns
are cut out, the remaining exons are joined together.

5'ATG AGT CTC TCT 3'
Find the DNA template strand. - correct ans...✔✔3'TAC TCA GAG AGA 5'
The DNA template strand is complimentary. So start with the opposite number, then go
L-R with the complimentary letter.

5'ATG AGT CTC TCT 3'
What is the corresonding mRNA sequence? - correct ans...✔✔5'AUG AGU CUC UCU
3'
This sequence is the same as the coding strand except T changes to U because it is
RNA. RNA doesn't have T.

How would a mutation from CTC to ATC affect the protein sequence? (CTC/ATC -
coding strand, AUC - mRNA strand) - correct ans...✔✔This will make a missense
mutation because it changes the name of the protein. (look at the chart provided.)
missense = mistake

DNA replication process - correct ans...✔✔DNA ->Transcription -> RNA -> Translation
-> Polypeptide

Describe how you would find what ionized Alanine looks like. - correct ans...✔✔This is
an amino acid. Look for the "R" group. Alanine is a hydrophobic amino acid that has
CH3. It is a weak interaction. An ionized acid will have a + or - charge.

Describe what causes the misfolding of protein in Alzheimer's Disease. - correct ans...✔
✔Protein misfolding is caused by intracellular tangles and extracellular plaques (senile
plaques) caused by abnormal protein aggregation.
TAU is fibrous material inside cells where the connections are lost. This becomes
defective and forms filaments in the neuron.
Amyloid-Beta is a large precursor protein in the cell. Excess amyloid-beta creates senile
plaques. This starts in the hippocampus and moves up.

Describe the process of neurodegenerative protein aggregation. - correct ans...✔✔
Alzheimer's is the most common neurodegenerative disease. The formation of


A GRADESOLUTIONS

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