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The LEP gene codes for an anorexigenic hormone. Interestingly, breastfeeding has been shown to alter methylation of the promoter of this gene, leading to increased LEP expression. What is likely happening in response to breastfeeding? Correct Answer- Breastfeeding decreases the methylation of the promoter of the LEP gene, increasing the spacing between nucleosomes. A patient with xeroderma pigmentosum is prone to developing multiple skin cancers starting in childhood. This occurs because o...

What is the basic structure of an amino acid? What do they look like? Correct Answer- amino group (NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and variable group How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged? Correct Answer- Non-polar/hydrophobic - end with CH or "can't have" water. Polar - end with OH, SH, or NH. Charged - end with a charge what kinds of bonds do each of the 3 different types of side chains make? C...

Complementary DNA and/or RNA molecules pair with each other by hydrogen bonding during replication, transcription, or translation. Which of the following pairs of molecules are complementary? (Select all that apply) Correct Answer- tRNA and mRNA mRNA and template DNA During DNA replication the parent strands ______ and DNA polymerase______. Correct Answer- separate, creates the new DNA strands The following sequence is one strand of the DNA that makes up the SNCA gene that codes for alpha...

Assuming 100% reaction efficiency, how many DNA copies are created after the completion of four complete PCR cycles? Correct Answer-16 What is the function of DNA polymerase in the process of PCR? Correct Answer-It recognizes the primers and uses the available dNTPs to replicate the template DNA sequence. What are possible blood types of the parents of a patient with blood type AB? Correct Answer-A and B 115 116 117 118 − Amino Acid Number Tyr Gly Thr Pro − Amino Acid Sequence TAC GGG...

Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary Correct Answer- Primary The primary structure of a protein is the sequence of amino acids held together by peptide bonds. Peptide bonds are formed by dehydration reactions and disrupted by hydrolysis. A mutation in the beta-hemoglobin gene, which results in the replacement of the amino acid glutamate in position 6 with the amino acid valine, leads to the developme...

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...

Defined as the ability to recognize when information is needed as well as the skills to find, evaluate and use needed information effectively Ans- Information literacy Term used to describe data that has been interpreted Ans- Information Focus on how to gather, process and transform information into knowledge. It also incorporates features from 5 other sciences -communication science -computer science -social science -library science -cognitive science Ans- Information science Using th...

Information literacy Ans- Defined as the ability to recognize when information is needed as well as the skills to find, evaluate and use needed information effectively Information Ans- Term used to describe data that has been interpreted Information science Ans- Focus on how to gather, process and transform information into knowledge. It also incorporates features from 5 other sciences -communication science -computer science -social science -library science -cognitive science Informat...

Glasgow Coma Scale Correct AnswerChance fracture Correct Answer- Transverse fracture through vertebra. In children usually associated with enterc disruption. Seen in motor vehicle accidents involving only lap belt. May be associated with retroperitoneal and Abdominal visceral injuries. Anterior hip dislocation Correct Answer- Flexed, abducted, externally rotated. Burst fracture Correct Answer- Associated with vertebral-axial compression injuries Posterior hip dislocation Correct Answer- ...

Assessed first in trauma patient Correct Answer- Airway (*)Degree of burn that is characterized by bone involvement Correct Answer- Fourth Complications of head trauma Correct Answer- Intracerebral hematoma Extradural hematoma Brain abscess Most common cause of laryngotracheal stenosis Correct Answer- Trauma Intervention that can help prevent development of acute renal failure Correct Answer- Infusion of normal saline A 26-year-old male is resuscitated with blood transfusion after a moto...