2. How many different mRNAs could specify the amino acid sequence Met-Phe-Ser-Pro? List them. 3. If the coding region of a gene is estimated to consist of 450 bp, how many amino acids would the corresponding polypeptide chain contain? Estimate the molecular weight of the polypeptide chain (assume the average molecule weight of an amino acid is 110 Daltons). 4. A single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacteriophage T4 caused a change in the protein from its wild-type composition....Lys-Ser-Pro-Ser-Leu-Asn-Ala-Ala-Lys....to the double mutant form....Lys-Val-His- His-Leu-Met-Ala-Lys.... (a) From the mRNA codons in the genetic code (standard codon table), decipher the segment of mRNA for both the original (wild-type) protein and the double mutant (b) Which base was added? (c) Which base was deleted? 5. A eukaryotic cell produces a normal protein with following amino acid sequence: Met-Val-His-Lys-Arg- Thr-Leu-Val. After irradiation, a transformed (mutated) eukaryotic cell is produced that makes a mutant protein from the same coding site on DNA: Met-Val-His-Lys-Glu-Pro. Describe the mutation that occurred. As always, justify your answer. 6. You are working with a newly discovered mutagen, and you wish to determine the base change that it introduced into DNA. Thus far you have determined that the mutagen chemically alters a single base in such a way that its base-pairing properties are altered permanently. In order to determine the specificity of the alteration, you examine the amino acid changes that place after mutagenesis. A sample of what you find is shown below: Original: Gln-His-lle-Glu-Lys Gln-His-Met-Glu-Lys Mutant: 19.

Q: Plasma includes the fluid around the organelles is the liquid portion of the blood has a different…

A: Blood is a form of connective tissue. The cells of the blood are closely packed. The hemoglobin…

Q: Question 5 What is not a deficiency symptom of Thiamin? O Tachycardia O Confusion O Anorexia O Poor…

A: Introduction:-  Thiamine, also known as vitamin B1, is an essential nutrient that plays a key role…

Q: Myosin ATPase activity rotates the myosin head to the strained, cocked position is associated with…

A: Myosin ATPase activity is positively related with muscle contraction. Therefore, the quantity of…

Q: Salma Rick Layla Adie Mac A Rh A Rh Rh Rh Rh B B B The blood type for Salma is The blood type for…

A: The blood type for Salma is A positive The blood type for Rick is AB negative  The blood type for…

Q: The anterior-most part of the brain steam is the

A: The brainstem is very small, accounting for only around 2.6% of the total weight of the brain. It…

Q: Question 1 1. Diaphragms work by 2. disabling sperm 3. blocking sperm 4. preventing implantation 5.…

A: Contraceptive methods are methods that prevent unwanted birth.  These methods include -  1.…

Q: An excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle is O…

A: Neurotransmitters are chemical messengers that relay signals from nerve cells to the target cells.…

Q: Question 15 Simple columnar cells are found in the skin muscle O gastrointestinal tract

A: We know that Columnar epithelial cells are simple epithelium made up of columnar cells. They are…

Q: Each shallow groove is called a

A: The cerebral cortex has sulci which is little grooves, crevices for the bigger grooves and lumps…

Q: During ventricular fibrillation, heart has a hard time to pump blood. O True O False

A: Ventricular fibrillation is also known as arrhythmia, which is the state of abnormal heart rhythm.…

Q: DNA _______________ adds an RNA primer that is complement to the template strand of DNA

A: DNA replication is the process in which DNA copies are made. it semiconservative, meaning that each…

Q: The rib cage is composed of O a. 24 ribs and scapula O b. 12 ribs and the clavicle O c. 12 pairs of…

A: The rib cage is made up of the ribs, costal cartilage, sternum, and thoracic vertebrae bodies. It…

Q: QUESTION 5  5.1 Outline the disorders associated with the reduction of platelets, and the possible…

A: Thrombocytopenia refers to a condition characterized by a reduced number of platelets in the blood.…

Q: The cerebellum is not part of the brainstem.  True  False

A: Brain is a complex structure which control and coordinates different body function by the cells…

Q: QUESTION 8 The pleural membranes are located_. around the pelvic cavity in the cranial cavity around…

A: The spaces that enclose the internal organs are called body cavities.

Q: Aldosterone is produced and secreted from the structure А D

A: Aldosterone is a steroid hormone which helps in regulating salt and water in our body, thereby keeps…

Q: The term epicardium (visceral pericardium) refers to O trabeculae carnae O simple squamous…

A: Pericardium is the double layer of the heart between the fibrous layer and the myocardium. Visceral…

Q: Question 13 The was also visible on the underside of the brain. It carries information related to…

A: The visual system comprises the sensory organ (the eye) and parts of the central nervous system (the…

Q: Question 6 Dose = 50 mg/m², patient's surface area = 1.94 m² Question 7 Dose = 120 mg/m², patient's…

A: For Question 6 and Question 7, we'll calculate the dosage required based on the patient's body…

Q: What specific kind of tissue is replaced by osteocytes during endochondral ossification? Wharton's…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: The ectodermal layer in the fetus will develop into:

A: Ectoderm is one of three germ layers—groups of cells that coalesce early during the embryonic life…

Q: Question 9 (1 point) The fingers of the hand and the toes of the foot-with the exception of the…

A: The skeletal system is one of the 11 major body organ systems that are concerned with various…

Q: QUESTION 12 The connective tissue that wraps around a muscle or bundle of fascicles is a(n)... OA…

A: The question is asking about the type of connective tissue that surrounds a muscle or a bundle of…

Q: uestion 29  Infection of a heart valve that develops slowly over a period of weeks to months is…

A: Ans- b myocarditis.

Q: l in the blanks: is a vertical plane that divides the body into anterior and posterior parts.

A: In particular, symmetry refers to the correspondence of body parts, in size, shape, and relative…

Q: QUESTION 9 While assessing the carotid pulse, you would check one at a time. This is done to avoid:…

A: Blood supplies oxygen and nutrients to cells of the body and takes away waste and carbon dioxide…

Q: Schizophrenia may be described as a A) "splitting" apart, or disintegration, of the normally…

A: Schizophrenia is a serious mental disorder in which people interpret reality abnormally.

Q: Lub/b sound is produced by the closure of the valves.

A: Heart valves are very important part of heart and plays a vital role in circulation of blood. The…

Q: Cationic exchange chromatography - used for positively charged proteins True False

A: Ion exchange chromatography is used for the separation and purification of charged biomolecule such…

Q: Cardiac output is a measure of heart rate and O tachycardia O stroke volume O bradycardia O…

A: The correct Option for the answer is Option B stroke volume.  Cardiac output is measured by…

Q: Question 34 A nerve impulse consists of a series of action potentials along the length of a…

A: The neurons have the capability to generate and transmit nerve impulses. The generation and…

Q: Question 46 (1 point) The bond between one water molecule's oxygen and another water molecule's…

A: The statement is referring to the type of bond that forms between one water molecule's oxygen and…

Q: The sternum or breast bone

A: Sternum forms the axial skeleton.

Q: The electrocardiogram (EKG) is a tracing of the electrical events in the myocardium cardiac output…

A: Electrocardiogram is a very popular technique, used in medical biology, to determine the problems…

Q: Question 68   An 80-year-old client with arthritis in both hips is rating her pain as 3 out of 10…

A: Arthritis is a condition affecting different joints of the body, causing inflammation. There are…

Q: Question 15 While viewing a slide under the microscope, I can use 100 x lens directly. O True False

A: Question: While viewing a slide under the microscope, I can use 100x directly?

Q: QUESTION 43 Match each of the following terms to its correct description А. systole diastole…

A:

Q: QUESTION 29 The nasal cavity O OO opens directly to the oropharynx. has openings connected to the…

A: The nasal cavity is the space inside your nose. It is lines with mucos membranes which is helpful in…

Q: QUESTION 2 [20] 2.1 Distinguish between atherosclerosis and arteriosclerosis. (4) 2.2 Explain the…

A: Atherosclerosis is a chronic inflammatory disease of the arterial wall that results in the formation…

Q: The most posterior party of the brain steam is the

A: The brain stem is one of the most fundamental parts of the human brain, but it is also one of the…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.