Statement 1: The cell-mediated immune response is brought about by T cells.  Statement 2: In humoral immunity, some B cells become memory cells which are long-lived cells that can recognize an antigen that once already infected the body.

Q: Describe the features of the first binding site (for allosteric enzyme unprotkb-p39086), including…

A: Answer ::   Ligands are the molecules that bind to a receptor and change the confirmation of the…

Q: During transcription, what will the order of bases be in mRNA, if the base sequence of the coding…

A: ans is... CUAGCU

Q: Question 1. Listen Sabourad agar (SAB) is a selective fungal medium that grows more slow growing…

A: Sabouraud Dextrose Agar or Sabouraud agar contains peptones which are basically animal tissue…

Q: Which of the following single-stranded DNA molecules may possibly be a restriction enzyme target cut…

A: Restriction enzymes are specific endonuclease that are responsible for cutting double standard DNA…

Q: The following taxa have many species that commonly reproduce asexually. Choose all that apply.…

A: Out of the given options, the species that commonly reproduce asexually are - Platyhelminthes,…

Q: Hematoma usually is the result of intraligamentary injection

A: Intraligamentary anesthesia was first described as an innovative and successful type of dental local…

Q: In what part of hemostatic mechanism do the factors participate    a. thrombomodulin    b.…

A: Hemostasis is the process in which blood coagulates or clots. There are several factors or blood…

Q: If two mouse populations do not interbreed but are found in the same area, they may form different…

A: Answer :- Option (D) is correct. - Adaptive radiation.

Q: 18) Which of the following statements concerning types of muscle fibre are correct? 1. Three types…

A: Introduction Muscle Fibres:- A muscle fiber is a single cell made of a bundle of myofibrils,…

Q: What is the proper term for an organism whose optimum growth range is between 20 and 50C but can…

A: ANSWER;- b. psychrotroph Explain;- Psychrophiles grow best in the temperature range of 0–15 °C…

Q: What will happen to the body if we are deficient in particular vitamins and trace elements ? Give…

A: Introduction When a person's diet does not include enough nutrients or the appropriate combination…

Q: In the termination phase of transcription what occurs? What is terminating or stopping

A: * Transcription is the process in which a  segment of DNA will be copied into RNA. *This segments of…

Q: DNA polymerase δ: DNA polymerase III as ________ a. Helicase: RPA b. DNA ligase: DNA polymerase I…

A: a) RPA stimulates helicase-catalyzed DNA polymerase III unwinding, enlists translocases to sites of…

Q: In some viruses, capsomeres function as enzymes as well as structural supports. Of what advantage is…

A: Viral capsids are nanometre-sized containers that possess complex mechanical properties and main…

Q: What synapomorphies suggest that relatives of Metazoans? Choose all th Both store energy as starch.…

A: The most striking resemblance between fungus and mammals is their trophic level, or position in the…

Q: L3 1) Given 1 initial layer (L1), what pattern of division led to L2? 2) If this specimen was an…

A: Meristematic tissue is specialised tissue found in plants which are capable of dividing at a fast…

Q: Name methods or techniques to test whether different model organisms/systems have a similar gene.

A: A model organism is a species which has been extensively researched, typically because it is simple…

Q: QUESTION 2 DNA replication occurs in which phase of the cell cycle? O a. S phase O b. M phase O c.…

A: The process by which the genome's DNA is copied in cells is known as DNA replication. Before…

Q: (a) Which allele/s will MOST likely result in an anomalous phenotype? (b) Explain your answer in…

A: I gave you the answers below

Q: In the initiation of translation, the process always lines up at the start codon. What is the start…

A: Translation refers to the process of polymerization of amino acids to form a polypeptide. The order…

Q: what is Neutrophils and function of it ?

A: Neutrophils are the granulated white blood cells and are the most abundant in number (60 - 65%) of…

Q: How does the compound below cause DNA damage? (Hint: Look at the structure of the molecule.) NH₂ Br…

A: Introduction The given compound is ethidium bromide, It is commonly used as a non-radioactive marker…

Q: In a genetic (XY) male, c) What is the spermatic cord and what is its path?  d) What structures are…

A: The reproductive system(male and female) is a complex system with a number of interconnected…

Q: G3P or (C,H,O,P) Figure #2: The Calvin Cycle (this represents three turns of the cycle) Answer the…

A: Calvin cycle converts CO2 from the atmosphere to synthesize carbohydrate molecules. The fixation…

Q: Phytochrome, plays an important role in flowering in many plants.  It can also be used to determine…

A: Answer :-  Option (C) is correct. - Most germinate.

Q: A 32-year-old woman goes to her doctor for dysfunctional uterine bleeding. This woman has a high…

A: A disorder in which there are anomalies in the frequency of monthly periods, the length of menstrual…

Q: Generalized species are less vulnerable to environmental change than specialized species. O True O…

A: Species with smaller geographical ranges, narrow habitat breadths and specialized feeding behavior…

Q: Identify whether the following statements are True or False. Answer it all.   8. Fraternal twins are…

A: Statement: Fraternal twins are the results when 2 eggs are released and 2 different sperm fertilize…

Q: Does concentration of xylulose-5-phosphate increase in cells after eating rice? Explain

A: D-Xylulose 5-phosphate (D-xylulose-5-P) is an intermediate in the pentose phosphate pathway. It is a…

Q: In which reagent is extracted DNA suspended to put it in solution? A. Sodium citrate saline buffer…

A: In which reagent is extracted DNA suspended to put it in solution?   A. Sodium citrate saline…

Q: A certain section of the coding (sense) strand of some DNA looks like this: ATGCTAGAGTGA It's known…

A: Given: Coding strand: 5'-ATGCTAGAGTGA-3' So we have,  Template strand: 3'-TACGATCTCACT-5' The mRNA…

Q: Regarding pathways that feed glycolysis, which of the following statements is false? Mannose is also…

A: Answer :- Option (C) is correct. - Fructose is phosphorylated by hexokinase in muscle cells.

Q: Describe the life cycle of Paragonimus westermani and its method of transmission to humans with…

A:

Q: CASE STUDY 15.6  A 52-year-old woman presents with a localized swelling and purulent abscess in her…

A: Introduction A bacterial infection frequently causes an abscess, which is a painful collection of…

Q: please explain why it is e and not a. the options seem the same to me how can you tell the…

A: The image is of mitosis II

Q: In the phage titer experiment, why did you plate multiple dilutions?   a. so that you should have a…

A: Bacteriophage  It is a type of virus that infect bacteria.

Q: Explain the central dogma - how DNA, RNA, and proteins are related.

A: The gene is the sequence of nucleotides that require certain processes to express it into protein.

Q: Please place the following Chordate adaptations in order of most ancient (1) to most recent (4). 1…

A: Evolutionary developmental biology, is considered a new norm in evolutionary biology. It arose from…

Q: Please answer fast List the steps of protein translation. Briefly summarize the mechanisms…

A: Genes include instructions for making proteins. They do not, though, produce proteins directly.…

Q: Considering a normal self cell, what might you expect to find in MCH I molecules on the cell…

A: MHC class I molecules (MHC-I) are cell surface recognition elements expressed on virtually all…

Q: (the enitre duration of x(t) is 10 ms), but x(t) is burried under the noise in the recorded signal,…

A: Electrooculography (EOG) is a technique for measuring the corneo-retinal standing potential that…

Q: What is the cause of an extra band in a DNA ladder in agarose gel electrophoresis?

A: The following can lead to the formation of an extra band in the DNA ladder lane - 1. Contamination -…

Q: Identify and define 8 apormorphies of flowering plants (angiosperms)

A: Introduction Apomorphies:- It is a specialized trait or character that is unique to a group or…

Q: Animals with three tissues layers have other synapomorphies that differentiate them from…

A: Biology is the study of cells, tissues, organs, organ systems, organisms, species, and communities…

Q: activities demand more body movements? Explain. Give 2 systems that are directly affected whenever…

A: * when we exercise we feel increasing in breathing and hear beat too. * we require more oxygen when…

Q: Microbial Metabolism What are the roles of other macronutrients (P, S, K, Mg, Ca, Na) in the cell?

A: Introduction Macronutrients are needed in large amounts, which usually help maintain the cell…

Q: Answer each question in 300 words: 1. What is ecological sampling? 2. What size and shape of quadrat…

A: It is impossible to count each and every species in an ecosystem.Sampling is the representative…

Q: Nematode Ascaris lumbricoides Trichuris trichiura Strongyloides stercoralis Necator americanus…

A: *Life cycle of trematodes usually have two hosts where they can paratise . * One is definitive host…

Q: 3.Do you think that humans derive any important benefit from contraction of the arrectores pilorum…

A: As per our guidelines we are not allowed to answer more than one question at a time , please ask…

Q: orange G (yellow) bromophenol blue (purple) xylene cyanol (blue)

A: Gel electrophoresis is a laboratory method used to separate mixtures of DNA, RNA, or proteins…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.