13.21 Explain the key difference in the biology of Batillaria and Cerithidea that indicates the mechanism underlying Batillaria's competitive superiority.

Q: Which enzyme is responsible for unwinding and separating the parental DNA strands? a polymerase…

A: Each parental strand provides a blueprint for the synthesis of a new complimentary daughter thread…

Q: Cadmium ions have been shown to be selective blockers of membrane calcium channels. Suppose T…

A: Cells communicate with each other via released proteins unique to each kind. Signal transduction…

Q: . What are the three principles of the theory of evolutionby natural selection?

A: Introduction :- Evolution refers to the change in a species' characteristics over several…

Q: 8) Capillary electrophoresis involves a) Fragmentation of the DNA strands b) High resolution…

A: Capillary electrophoresis is an experimental methodology that provides an applied voltage to…

Q: oviposition for

A: Oviposition means expulsion of the egg from the oviduct to the external environment. eggs or female…

Q: 49. The hip joint is formed by the articulation of the of the_ to the which is the socket on the…

A: Introduction Joints:- Joints are where two bones meet to allow movement, it makes the skeleton…

Q: Female Drosophila with cinnabar eye (cn) and vestigal wings (vg) were mated to males with roof wings…

A: The genes present on the same chromosome cannot assort rather they tend to be inherited together.…

Q: Discuss, using different examples, how biological pathways are informed by forward genetic screening…

A: C. elegans has established itself as a valuable model organism for identifying the genes and genetic…

Q: A study in a British medical journal found there was a correlation in telomere length between…

A: Telomeres are the repetitive set of nucleotides sequences and protein complex present at the end…

Q: hich of the following shorthand names best characterizes the following disaccharide? CH,OH CHOH O.…

A: This is a disaccharide link together by a glycosidic bond. This disaccharide is formed by a…

Q: A histological specimen of spleen shows a vessel with a wall consisting of endothelium and…

A: Introduction :- A part of the lymphatic system, the spleen is an organ. The spleen is responsible…

Q: Question 2 Cutting DNA into various size fragments is part of... Genetic fingerprinting Genetic…

A: Answer

Q: 6. In molluscs.the umbones are other. when they face each a. prosogyroUs b. opisthogyrous c.…

A: Mollusca is the second largest invertebrate animal phylum after Arthropoda, and its members are…

Q: Histological examination of a patient's lymph node showed an absence of germinal centers but with…

A: Absence of germinal centers in lymph nodes. Germinal centers are the parts of lymph nodes in which B…

Q: To ensure a conviction, DNA crime labs use CODIS standards. Instead of 1 tandem repeat, how many…

A: Forensic science is concerned with the collecting and examination of physical evidence as well as…

Q: Genetics. How to identify what wrong with it

A: DNA sequencing refers to the overall lab strategy for deciding the specific sequence of nucleotides,…

Q: The canonical DNA polymerase are the main DNA synthetic enzymes in human cells and they carry out…

A: DNA polymerase is the enzyme which found in every cell. It is a holoenzyme which have different…

Q: ssium important to the sodium pump? Potassium a) maintains water concentration O b) binds with the…

A: Potassiun pump This pump is found in cell membrane. ATP is needed for this pump to move Na+ and K+…

Q: 5) Briefly explain why the formation of a tumour can pose a risk to a person's homeostasis.

A: Cancer is a condition in which cells proliferate abnormally and infiltrate, erode, and kill healthy…

Q: Approximately what percentage of DNA is noncoding? a 98% b 2% c 50% d 25%

A: DNA can be described as an organic molecule that includes genetic information as well as…

Q: a. If a couple had more than one child, would all the children have the same bands as the first one?…

A: Possessing of genes in a child is random though it has the genes of both parents .

Q: T cells develop in the thymus. 90% of all thymocytes do not survive. They die due to apoptosis…

A: T cells undergo 2 kinds of thymic selections inside the thymus. This results in eliminating 90% of T…

Q: is C correct? because females can also inherit x-linked traits, they won’t express it but they’ll be…

A: A gene is considered to be X-linked if it is found on the X chromosome and not on the Y chromosome.…

Q: Which statement is TRUE regarding the DNA ligase mechanism?

A: DNA ligases DNA ligases are the enzymes that are responsible for joining the two strands of DNA by…

Q: The blood vessel which supplies blood to the liver.

A: There are two blood vessels which supply blood to the liver, namely hepatic artery and portal vein.…

Q: Discuss the adaptations that Trypanosoma cruzi evolved to invade and manipulate their hosts.

A: Introduction Trypanosoma cruzi:- It is a species of parasitic euglenoids and the agent of human…

Q: pathways during

A: oviposition :-It involves the deposition of the mature egg outside the body of the female and…

Q: Question 32 The primary functions of the spinal cord are O local control and decision-making for…

A: The long, thin, tubular bundle of neurons and supporting cells that originate from posterior end of…

Q: how is genetic information organized in a cell

A: Heritable biological information is encoded in DNA or RNA nucleotide sequences (some viruses), such…

Q: According to Emery's rule slavemaking ants parasitize the nests of: other slavemaking ant species…

A: Slave-making ants are called so because they increase the workforce of their own colony by getting…

Q: Question 1: Compare and contrast the different metabolic pathways used by cells to generate ATP,…

A: Glycolysis Definition The sequence of reactions by which glucose is degraded anaerobically is…

Q: Identify the parts and the function of each parts of Pyrococcus furiosus and Salmonella typhimurium.…

A: Prokaryotes include Archaea and Bacteria, which are two different types of microorganisms. Archaea:…

Q: Describe Class I MHC pathway of antigen processing and presentation. Highlight the functions of the…

A: The immune system is made up of a variety of cells as well as tissues that are distributed…

Q: What would happen if you replaced all the negative charges on DNA with positive charges? What would…

A: DNA is the naturally negatively charged macromolecule. The DNA is associated with a protein or…

Q: one lm of milk was added to 9 ml of sterile saline. 0.1ml of the diluted sample was put into a petri…

A: Dilution factor = Volume final/volume initial  Df= 10/1 or 10 or 10¹ Number of colonies =200 Volume…

Q: Which statement describes Linus Pauling's contribution to the understanding of DNA structure? a…

A: The following statement describes Linus Pauling's contribution to the understanding of DNA structure…

Q: Question 1. Which of the following is never found in prokaryotes? A. Ribosomes B. DNA Polymerases C.…

A: Introduction :- Ribosomes, also known as Palade granules, are macromolecular machines that perform…

Q: 28. 29. 30. -30 -75 -100 65 -90 10 55 80 Graduated cylinders #28-30 were mL. measuring increments of…

A: A graded cylinder's scale divisions are usually determined by its size. The 50-mL graduated…

Q: 1. When the fibrinolytic factors is not regulated by the inhibitors of the fibrinolysis, what will…

A: Note:- here i will answer only first three questions according to the guidelines of bartleby. Kindly…

Q: Which of the following is the correct sequence for RNA splicing: 1. U2 binds to the branch site and…

A: Interaction of the U1 snRNP to the 5′ splice site (5′ ss) and engagement of splicing factor 1 and U2…

Q: After decades of work, Dr. Ricky M. isolated a small amount of attractase—an enzyme that produces a…

A: A gene is the essential physical and functional unit of heredity. Genes are comprised of DNA. A…

Q: About the three following diseases: phenylketonuria (PKU), sever combined immuno-deficiency (SCID),…

A: it is an inborn error of metabolism due to deficiency of phenylalanine hydroxylase which converts…

Q: Question 6. What is the process through which cellular organelles can be recycled in the cell? A.…

A: The science of cell structure and function is known as cell biology, and it is based on the idea…

Q: Presbyopia is a condition in which a person loses part or all of their capacity to adapt to changes…

A: Introduction :- Presbyopia, also known as "ageing eye," is a condition in which the eye loses its…

Q: Natural selection occurs when which of the following conditions are met? Individual organisms…

A: Natural selection can be referred to as the method by which the most well-adapted forms of living…

Q: 4. Write a short paragraph on mutations and how they may alter protein synthesis and function.

A: Introduction :- A mutation is a change in the genetic material in biology. This refers to changes in…

Q: What if an environmental agent were to cause changes not only in the  somatic DNA but also in the…

A: Introduction  DNA is highly prone to mutations too which can be either spontaneous or can be caused…

Q: List the different lethal toxins and their mechanism.

A: Answer

Q: O 500 animals O 610 animals O 450 animals O Not yet at K O 200 animals

A: In biology, growth curves are commonly used to represent things like population size or biomass, as…

Q: Question 47 Food is prevented from entering the trachea by the O larynx. O pharynx. O sphincter…

A: The tube like structure that connects posterior nasal and oral cavities to Larynx and esophagus is…

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