BioChem C785 - WGU - Module 1 - all questions 1.DNA replication is semiconservative, which allows each of the 2
strands to serve as a template for the new strands: true
2.Recall that the DNA polymerase must bind a double-stranded polymer before it can start making its own DNA polymer. What helps the DNA
poly- merase to overcome this problem in DNA replication?: RNA
primers 3.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 4.Maternal smoking during pregnancy is hazardous yet common in many places. Many studies have associated prenatal smoking to unhealthy physi- cal and psychological outcomes for the baby. Researchers know that mater- nal smoking affects are epigenetic in nature. Which event can
be considered epigenetic in nature?: Changes in chromatin structure
5.Blood is what type of inheritance?: codominance
6.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%
7.What is the complementary DNA strand for the DNA sequence 5'-ATT
CGG GCT CCC - 3': 5'- GGG AGC CCG AAT - 3'
8.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)
9.What is 1 direct effect of inhibiting translation?: the production of
proteins would stop 10.How many amino acids, and which ones, would be encoded by the following mRNA sequence: 5'- AUGACUCCCGGG -3': 4: MET, THR, PRO, GLY 11.Promoters are DNA sequences near the start of a gene that are recog- nized by transcription factors which recruit RNA polymerase to that gene for expression. This is an important aspect of transcriptions but not part of 1 / 2
the mRNA processing.: true
12.You are designing a piece of DNA for a project and must select the appropriate nitrogenous bases. Which combination of nitrogenous bases
- / 2