Q: (c) State the main function of the following: (1) Chordae tendinae (ii) Lymphocytes (iii) Seminifero...
A: 1)Chordae tendinae- Chordae attendee is present in The flaps of tricuspid and bicuspid valves. its ...
Q: Which enzyme catalyzes the elongation of a DNA strand in the 5' to 3' direction?
A: DNA polymerase Ill
Q: n EMPEROR-Reduced study in jardiance, _______ treated patients with HFrEF were 65 years of age and o...
A: Heart failure with reduced ejection fraction (HFrEF) is a systolic heart failure caused by impaired ...
Q: In corn, kernel color is governed by a dominant allele for white color (A) and by a recessive allele...
A: The problem based on Hardy Weinberg equilibrium.
Q: The is responsible for homeostasis and the coordination of the nervous and endocrine systems. O midb...
A: Introduction :- The endocrine system, which is made up of all of the body's hormones, regulates all ...
Q: When seed germinates, it shoot grows upward while its roots grow downward. What type of gravitropic ...
A: Introduction: Gravitropism is a type of tropism, like phototropism (where there is a change in the p...
Q: 41. The template strand of a gene has the sequence 3'-TCCCATGAG-5', Which of the following would be ...
A: Amino acids are the structural unit of proteins. there are majorly of 20 amino acids which are divid...
Q: How is protein made out of a RNA template?
A:
Q: Question 6. List the five steps in cell migration in order:
A: Cell migration is an essential mechanism in the growth and maintenance of multicellular organisms. T...
Q: Question 9. When the rate of loss of actin subunits from the pointed end of an actin filament is bal...
A: Actins are the microfilaments. It is made up of G sub units. It is found in the muscles.
Q: (i) The phenomenon by which living or dead plant cells absorb water by surface attraction. (ii) The ...
A: There are various major human organ systems that perform a different functions. Urinary system- incl...
Q: Which bacterium does not contain deaminase enzyme O A. Proteus O B. Morganella O C. Providencia O D....
A: Answer :: A) Proteus mirabilis a bacteria produces the enzyme urease, which converts urea into ammon...
Q: "In repolarization, potassium channels close and additional sodium channels open; sodium movement in...
A: Repolarization allides to the changes in membrane potential that goes back to a negative value soon ...
Q: QUESTION 5 What event would most directly lead to the development of female external genitalia? Abse...
A: Answer - The event directly leads to the development of female external genitalia - The presence of...
Q: 3 biotic factors and explain how they can affect the populations of different species in an ecosyste...
A: The living organisms in an ecosystem, including people, animals, plants, fungi, and bacteria are cal...
Q: QUESTION 3 Most of the genetic variability within species and between species can be classified as "...
A: Introduction :- A species is the largest collection of organisms in which any two individuals of the...
Q: Are oils from plants always less saturated than oils or fats from animal source?
A: Saturated Fats: A saturated fat is one in which all of the fatty acid chains are single-bonded. A g...
Q: Question 4. In an axon, where all of the microtubules are oriented with their minus end facing the c...
A: Neurons have a typical structure with a long cylindrical projection called axon that helps in transm...
Q: Describe the production process of wine, highlighting the role of the microorganisms involved and st...
A: * The process of making wine has following processes: harvesting crushing grapes fermenting ageing...
Q: Explain and list down the protocols in doing or preparation of materials for polymerase chain reacti...
A: Polymerase chain reaction It is a technique that take specific sequence of DNA of small amount and ...
Q: Design a flow chart to show how energy from the sun is transformed into energy for walking?
A: The food chain is a complex process of transformation of the energy of the sun to biochemical energy...
Q: During cellular respiration, for each single glucose molecule 10 NADH molecules and 2 FADH2 molecule...
A: In aerobic respiration, one molecule of glucose yields 38 ATP molecules, eight produced during glyco...
Q: Ingestion of plenty of which minerals could reduce absorption of lead? Select all that apply seleniu...
A: All human beings require energy to live. All the nutrients for attaining energy is derived from the ...
Q: Referring to the figure below, explain why NADH yields more ATP than FADH2 does. Electron-transport ...
A: The electron transport chain is a combination of four protein complexes that connect redox processes...
Q: QUESTION The amino acid precursor of thyroid hormones, that iodine is added to, then forms the Ty an...
A: INTRODUCTION Answers of Question 8,9 and 10 is given below.
Q: thin and thick blood smear analysis, what are the necessary QC involve to check and assess the integ...
A: A thick blood smear is a drop of blood on a glass slide. A thin blood smear is a drop of blood that ...
Q: TTiving with chronic illnesses: How are those with a chronic illness treated by their families since...
A: Research is a methodical investigation that includes data gathering, a compilation of key informatio...
Q: Mexico Canada Alaska California What biomes do they have each? Like types of environment. I thought ...
A: Biomes of Mexico:- Neotropical Canada:- Tundra, Desert, Grassland, Forest Alaska:- Tundra Californ...
Q: 39. Match the following functions to the letters in the picture 67'F The doyua of cell biology (The ...
A: Answer
Q: Which of the following evidences would BEST determine whether two plant species share a recent commo...
A: The sharing of an ancestor means that the group of species have shared many characters in common And...
Q: 1.What is the Purpose of SEPT ? 2.What is Sports Endurance Plank Test (SEPT)? 3. What are the Benefi...
A: Part 1. SEPT can be expanded as Sports Endurance Plank Test. The aim or the main purpose of this tes...
Q: Which of the following DNA sequence pairs are completely complementary?
A: The above given statement is about DNA complementary sequence.
Q: (a) Name the following : (i) The type of cell division which occurs in the cells of the reproductive...
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...
Q: The offspring of better-adapted individuals are expected to make up a larger proportion of the next ...
A: natural selection
Q: Describe the organisation of a muscle organ, including all memes Describe much can stratures asociat...
A: * muscle organs are organised from cells. * Cells are organized into tissues and tissues organise or...
Q: What are the possible effects of some ecological threats to the health of an ecosystem? Use the tab...
A: Ecological threat: The term describes the risks due to activities that may affect the environmnent. ...
Q: 1 pt Structures as different as human arms, bat wings, and dolphin flippers contain many of the same...
A: INTRODUCTION Homologous structure The homologous structures are similar in construction but are modi...
Q: In cattle "short spine" is lethal shortly after birth: it is caused by the homozygous recessive geno...
A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is ...
Q: Number the stages of meiosis from 1 to 8 to show their correct chronological sequence. 1 [Choose ] [...
A: Meiosis is a two stepped process. It produces haploid gametes from diploid parent cell.
Q: Illustrate by diagram the interrelatedness of the light dependent reaction and the carbon reaction. ...
A:
Q: Compare and contrast Cell Division in prokaryotes and eukaryotes
A: "Cells" communicate with one another using their own chemical signaling system. Different chemicals,...
Q: Prokaryotes undergo. replication O A. bifunctional O B. unidirectional O C. tridirectional O D. two-...
A: The correct option is D.two way From the replication origin, DNA replication is bidirectional. Unwin...
Q: 토 25 2 Numbers per km? (Б) 70 50F 40 125 100 75 50 400 800 1200 Density (m³) w 6) ssewoig * (wo) y1b...
A:
Q: How would streams with agricultural riparian zones differ from those with forested riparian zones?
A: An ecosystem is a natural community of living beings that deals with the external environment and ot...
Q: Once an activated signaling pathway has elicited the proper changes in target gene expression, the p...
A: In biological systems, the type of regulation in which the final product results in the decline of t...
Q: In a paternity case a single mother claimed that a certain man was the father of her baby. The man d...
A: Co-dominant alleles define a person's blood type. An allele is among types of genetic data found in ...
Q: Mitosis differs from meiosis in that only mitosis: O is preceded by interphase involves two successi...
A: Introduction: Cell division is the means of reproduction in which all cells need to copy their chrom...
Q: 20- Depression of action potential can be caused by: A. Inactivation of Ach esterase C. The flow of ...
A: Action potential is defined as a change in electric potential, which is the difference in charge bet...
Q: A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling. One possible r...
A: Epinephrine also known as Adrenaline is an hormone produced by adrenal gland. The signal pathway of ...
Q: The DNA you extracted still has some protein bound to it. To get pure DNA, the protein must be remov...
A: Extraction of DNA The DNA is enclosed within the membranes of cell, the membranes have to be rupture...
Explain
Step by step
Solved in 2 steps
- simple and direct answer please In the process shown in Diagram 2, what performs the function most similar to that of the activated T cell in Diagram 1?Antibodies have two identical antigen-binding sites. Remarkably, antibodies to the extracellular parts of growth-factor receptors often lead to the same cellular effects as does exposure to growth factors. Explain this observationPentadecacatechol, a poison ivy toxin, may also activate cytotoxic CD8 T cells. Fully describe the mechanism by which this drug activates CD8 T cells *please answer the question specific to contact sensitivity to poison ivy
- Describe mechanisms to explain why not all of the anti-thyrotropin receptor antibodies would induce receptor activation.True or false: Checkpoint blockade therapies such as monoclonal antibodies which bind to PD1/PD-L1 or CTLA-4 work by interfering with the regulation of T cell co-stimulatory pathwaysBinding of TGF-β to its receptors can elicit a variety of responses in different cell types. For example, TGF-β induces plasminogen activator inhibitor 1 in epithelial cells and specific immunoglobulins in B cells. In both cell types, Smad3 is activated. Given the conservation of the signaling pathway, what accounts for the diversity of the response to TGF-β in various cell types?
- Cytotoxic effector T cells also produce inflammatory cytokines such as IFN-g and TNF-a when their T-cell receptor recognizes peptide:MHC on a target cell. One effect of this cytokine secretion is to enhance the ability of CD8 effector T cells to recognize and kill other infected cells in the nearby vicinity. This enhanced activity is due to: The increased production of perforin and granzymes by CD8 cells The up-regulation of MHC class I protein expression by IFN-g The ability of TNF-a to induce vascular leakage The effect of cytokines on promoting target cell apoptosis The effect of IFN-g to enhance viral replication leading to increased viral antigen presentationWhich of the following does not involve a dimerization event? Explain why you chose, or did not choose, each answer. a) Transport of R-SMAD from the cytoplasm to the nucleus. b) Ligand binding to the EGF receptor c) CREB binding to the cAMP response element (CRE) d) Ligand binding to the TGF βreceptorA strain of mice has been identified that does not respond to LPS. This lack of response is due to a single amino acid change in the intracellular domain of mouse TLR4. Propose an explanation for the lack of response
- Describe the signal transduction pathway that is activated when LPS binds to TLR-4.The innate immune system has to be able to detect foreign invaders. Explain two ways that the innate immune system is able to detect these foreign invaders to allow a response to be mounted.Based on the data shown in chart, titled IL-2 Response by Macrophages that express TLR-XX would you predict that cytochalasin B treatment would inhibit TLR-XX dependent anti-viral immune responses to live RNA virus, Yes or No? Why? please be as concise as possible but clear in your response.