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Biochem C785 - WGU - Module 1 -Questions And Answers with correct answers
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Biochem C785 - WGU - Module 1 -Questions And Answers with correct answers
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Biochem C785 - WGU - Module 1 - AllQuestions
DNA replication is semiconservative, which allows each of the 2 strands to serve as a template for
the new strands Correct Answer: true
Recall that the DNA polymerase must bind a double-stranded polymer before it can start making its
own DNA polymer. What helps the DNA polymerase to overcome this problem in DNA replication?
Correct Answer: RNA primers
Several components of cigarette smoke, including benzopyrene, insert themselves into the DNA and
lead to several types of mutations such as frameshift mutations, including both insertions and
deletion. Which repair pathway would be used to repair this type of damage? Correct Answer:
Nucleotide Excision Repair
Maternal smoking during pregnancy is hazardous yet common in many places. Many studies have
associated prenatal smoking to unhealthy physical and psychological outcomes for the baby.
Researchers know that maternal smoking affects are epigenetic in nature. Which event can be
considered epigenetic in nature? Correct Answer: Changes in chromatin structure
Blood is what type of inheritance? Correct Answer: codominance
What is the probability that a child will have an autosomal dominant disease if their father is
heterozygous for the allele and their mother is homozygous for the normal allelle? Correct Answer:
50%
What is the complementary DNA strand for the DNA sequence 5'-ATT CGG GCT CCC - 3' Correct
Answer: 5'- GGG AGC CCG AAT - 3'
A research scientist is trying to create a new strain of bacteria that can produce a protein needed for
her research. What molecule will act as a template in creating the new protein? Correct Answer:
messenger RNA (mRNA)
What is 1 direct effect of inhibiting translation? Correct Answer: the production of proteins would stop
How many amino acids, and which ones, would be encoded by the following mRNA sequence: 5'-
AUGACUCCCGGG -3' Correct Answer: 4: MET, THR, PRO, GLY
Promoters are DNA sequences near the start of a gene that are recognized by transcription factors
which recruit RNA polymerase to that gene for expression. This is an important aspect of
transcriptions but not part of the mRNA processing. Correct Answer: true
You are designing a piece of DNA for a project and must select the appropriate nitrogenous bases.
Which combination of nitrogenous bases would you find most suitable for your work? Correct Answer:
Adenine, Guanine, Thymine, Cytosine
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