BioChem C785 - WGU - Module 1 - all
questions
DNA replication is semiconservative, which allows each of the 2 strands to serve as a
template for the new strands –
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? –
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? –
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? –
Changes in chromatin structure
Blood is what type of inheritance? –
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? –
50%
What is the complementary DNA strand for the DNA sequence 5'-ATT CGG GCT CCC
–
3' - 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? –
messenger RNA (mRNA)
What is 1 direct effect of inhibiting translation? –
the production of proteins would stop
How many amino acids, and which ones, would be encoded by the following mRNA
sequence: 5'- AUGACUCCCGGG -3' –
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. –
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? –
Adenine, Guanine, Thymine, Cytosine
The DNA sequence is 3'-ATGATCCTT-5' is part of the template strand during DNA
replication. What is the correct sequence for the newly made DNA? –
5'-TACTAGGAA-3'
RNA nucleotides include the bases A, U, C, and G. RNA is single stranded and contains
a ribose sugar in the sugar-phosphate backbone. There are several types of RNA in the
cell, including mRNA, rRNA, and tRNA –
true
What would be the resulting mRNA sequence? Kevin's opsin gene at nucleotide
positions 936 to 941: 5'-GCCTAG-3' (coding strand) and 3'-CGGATC-5' (template
strand) –
The sequence is the same as the coding: 5'-CGGUAG-3'
questions
DNA replication is semiconservative, which allows each of the 2 strands to serve as a
template for the new strands –
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? –
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? –
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? –
Changes in chromatin structure
Blood is what type of inheritance? –
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? –
50%
What is the complementary DNA strand for the DNA sequence 5'-ATT CGG GCT CCC
–
3' - 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? –
messenger RNA (mRNA)
What is 1 direct effect of inhibiting translation? –
the production of proteins would stop
How many amino acids, and which ones, would be encoded by the following mRNA
sequence: 5'- AUGACUCCCGGG -3' –
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. –
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? –
Adenine, Guanine, Thymine, Cytosine
The DNA sequence is 3'-ATGATCCTT-5' is part of the template strand during DNA
replication. What is the correct sequence for the newly made DNA? –
5'-TACTAGGAA-3'
RNA nucleotides include the bases A, U, C, and G. RNA is single stranded and contains
a ribose sugar in the sugar-phosphate backbone. There are several types of RNA in the
cell, including mRNA, rRNA, and tRNA –
true
What would be the resulting mRNA sequence? Kevin's opsin gene at nucleotide
positions 936 to 941: 5'-GCCTAG-3' (coding strand) and 3'-CGGATC-5' (template
strand) –
The sequence is the same as the coding: 5'-CGGUAG-3'
