Q: How is the poly(A) tail added to pre-mRNA? What is the purpose of the poly(A) tail?
A: Translation termination occurs when prokaryotic cell recognizes nonsense codon which includes UAA, U...
Q: secretion of acid occurs here [ Choose ] [ Choose ] F receives bicarbonate secretions H most enzymat...
A: The physiological system in the animal body that is responsible for engines and and digestion of foo...
Q: Briefly describe the lac operon and how it controls the metabolism of lactose.
A: A lac operon is a set of genes that share a single promoter. The genes in the operon code for protei...
Q: What role, if any, do the noncanonical Wnt signaling pathways have inplanarian regeneration?
A: Regeneration is an evolutionarily conserved process in animal kingdoms, however, the regenerative ca...
Q: Dr Merrick is so excited to know the affinity constant Kd values for O2 binding to mammoth OBP and e...
A: ANSWER;- It is given that the ka values of OBP and elephants Hb are the same at pH=7. Kd is the equi...
Q: not
A: SIGNALING- A ligand binds to a cell -surface receptors, the receptors intracellular domain changes i...
Q: Question 15 The following statements best describes the RNA structure EXCEPT A it is usually single ...
A: RNA (ribonucleic acid) is a molecule which is a polymer of nucleotides. Unlike DNA which is double s...
Q: An ecosystem has an average of 50 cm of rain per year. Look at the rainfall g of lower than average ...
A: Biotic factors - Biotic factors are living components or variables that influence an ecosystem or th...
Q: In your own words, explain how cephalization, jaw development, and paired limbs guided vertebrate ev...
A: Vertebrates are group of animal that have vertebrae column (backbone).
Q: a) List two animals which feed primarily on fluids b) List one animal that relies on symbiotic algae...
A: INTRODUCTION Answer of the question is given below.
Q: The maximum age attainable by a memberof the human species is called the ______.
A: Aging is a progressive process that begins at conception. Our "life," or the time between birth and ...
Q: Discuss reasons why population numbers would be important and how this data could be used to manage ...
A: Increased numbers of a particular species can affect the balance of ecosystem , as the increasing po...
Q: How do the four components of xylem such as tracheids, vessels, parenchyma and fibres work together?
A: Xylem - Xylem help in the unidirectional translocation of water and minerals. The xylem is composed ...
Q: The supercoiled DNA can either be positively or negatively supercoiled. A True B False
A: The DNA double helix wraps around a nucleosome, forming a supercoil. One turn of a Solenoid is made ...
Q: All but one species of large birds native to New Zealand’s tropical forests are now extinct. Numbers...
A: The term evolution is associated with a natural process that plays an important role in allowing the...
Q: Give at least 3 examples of model organisms used to study genetics.
A: Genetic study can be done on many organism to study about specific trait,phenomenon or disease . Thi...
Q: Prompt With many issues regarding stem cell research with one of them being the utilization of embry...
A: INTRODUCTION Stem cell research The scientists grow stem cells in the lab and later the cells are ma...
Q: A geneticist induces a mutation in a cell line growing in the laboratory. The mutation occurs in a g...
A: Eukaryotic mRNA molecules undergo post-transcriptional modifications.
Q: A strain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the sigma f...
A: The behavior of external agents or mutagens that can alter the basic sequence of genetic information...
Q: What is the purpose of the different types of media (solid, semi-solid, broth)?
A: Microbiology is becoming increasingly significant in the current day, it can be used as new ways of ...
Q: Describe common signs of extrapyramidal side effects of antipsychotic drugs.
A: Antipsychotics are a type of psychiatric drug used to treat psychosis and are accessible on prescrip...
Q: The A and B forms of DNA A are both right handed helices B) both have 10 base pairs per turn of the ...
A: A and B form of DNA : answer (A)are both right handed helices. (B)both have 10 base pairs per turn o...
Q: This type of adaptive immunity in prokaryotes is built through acquisition and integration of short ...
A: Introduction The adaptive immune system, is a subsystem of the immune system made up of specialized,...
Q: 104. Types of gametes formed by the plant with genotype AABbccDdee :- (1) 2 (2) 4 (3) 32 (4) 64
A: Genotype is the collection of genes that every organism carries. Phenotype represents the observable...
Q: Explain how cephalization, jaw development, and paired limbs guided vertebrate evolution.
A: * Cephalization is the concentration of sense organs and nervous control in anterior part of the bod...
Q: Using Benedict's Test would the substance (saliva + acid + potato chips) test positive or negative? ...
A: Benedict's test is used for the identification of reducing sugars such as simple carbohydrates (gluc...
Q: What bonds form the backbones of DNA molecules? O Bonds between complementary nitrogenous bases O Bo...
A: The self replicating by molecules that are present in chromosomes and carries genetic information ar...
Q: Compare the roles of general transcription factors and transcriptional activator proteins.
A: Transcription is the process of translating info from one stranded DNA molecule to a new molecule of...
Q: All of the following statements regarding nucleosomes are true EXCEPT A each bead-like structure con...
A: The length of DNA is about 5 feets. This 5 feets long DNA needs to be placed in nucleus of every cel...
Q: Which of the following features is associated with the Watson and Crick model of the DNA? A a purine...
A: Introduction: The two DNA strands are antiparallel means that 5’ end of one strand faces 3’ end of o...
Q: The pedigree chart below illustrates the inheritance of a trait (darker symbols) in two families joi...
A: A pedigree is a branched diagram which represents the inheritance of a trait across generations in a...
Q: How do the external factors cause the vertebrates to develop epidermal and dermal derivatives? Plea...
A: INTRODUCTION Veretebrates are the animals that have an backbone and spinal column. Veretebrates ar...
Q: Select the best answer or answers from the choices given: All of the following are considered innate...
A: Immune response is defined as the process through which the body's immune cells recognise invading p...
Q: Which vitamin deficiency is associated with high amounts of serine accumulation? A. Folic acid
A: A nutrient is a chemical or compound that aids in the growth, survival, and reproduction of an organ...
Q: How do you think human body sustains life
A: For metabolic functioning, all life forms require certain essential chemical components. The element...
Q: The filtrate is dilute at the start and end of the loop of Henle. What, then, is the function of the...
A: Introduction: The bladder, ureters, kidneys, and urethra makes up the renal system. This system is n...
Q: Because irreversible inhibitors bind to the enzyme you could analyze the enzyme molecule after addin...
A: The following is about enzyme mechanisms and their inhibitions.
Q: Exercise: Concept diagram. Trace the flow of blood through the heart. Fill in the diagram using the ...
A:
Q: Find 5 statements that Doug told Mary that are CORRECT.
A: In this scenario based on light microscopy. How to detect a specimen image through compund light mic...
Q: what are the steps to make a protein?
A: Introduction: Proteins are complex organic molecules composed of amino acids joined in a specific s...
Q: RNA polymerases carry out transcription much more slowly than DNA polymerases carry out replication....
A: The process of producing two daughter strands, each containing half of the original DNA double helix...
Q: After _____ are absorbed by intestine cells, they go into lymph vessels rather than blood. A. minera...
A: ANSWER :LIPIDS
Q: The FDA finds that chickens across the US are infected with a new type of bird-flu. They determine t...
A: A gene is a DNA-based functional heredity unit that delivers instructions for the production of RNA ...
Q: What is the difference between competitive exclusion and resource partitioning?
A: Competitive exclusion is an ecological generalization that asserts that two species cannot coexist f...
Q: What are the major classes of cellular RNA?
A: DNA and RNA are nucleic acids. DNA codes for cellular activities and RNA carries out the process of ...
Q: would go on the y-axis because If you want to make a graph that includes change in pulse rate for ea...
A: The independent variables are the set of variable that can be changed or manipulated and we have c...
Q: The culture you are working has a doubling time of 2 hours and a cell density of 3 x 106 cells per m...
A: A serial dilution is a process of sequential dilution in order to decrease the density of cell cultu...
Q: Often, humans introduce non-native species either by accident or on purpose. Describe the unforeseen...
A: Non native species are species that originated somewhere other than its current location and has be...
Q: . K/U Study the drawings below. Identify the phyfum to which each organism belongs. Explain how you ...
A: Protists are unicellular or multicellular organisms, which lack a cell wall and organelles. The orga...
Q: 2. a. In the following diagram of a portion of a protein, label the types of interactions that are s...
A: The complete structure of protein can be described at four different levels of complexity - Primar...
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