What are the "chiasms" of homologous chromosomes seen in prophase I?

Q: Which of the following is a lymphatic organ? O red bone marrow O thymus O spleen all the above

A: Introduction :- The red bone marrow, which produces blood and immune cells, and the thymus, which…

Q: Which mucosal cells are involved in propagating signals from the gut to the brain? enteric B cells…

A: Introduction:- The vagus nerve is the principal component of the parasympathetic nervous system,…

Q: Question 3. Why must RNA splicing be absolutely precise?

A: RNA Splicing refers to the removal or cutting of non-coding regions of RNA (introns) from mRNA and…

Q: Describe how guard cells regulate transpiration .

A: This is the process of transpiration. Cooling the plant and pumping water and minerals to the leaves…

Q: B. Drawing of the adult stage of hookworm representatives. (Label the parts)

A:

Q: Fill in the table. Nucleic Acid Comparison DNA ml

A: Nucleic acid- It is an macromolecule found in all type of cell. In other word you can says that…

Q: The T cell subset recognized as as comprising the tissue-resident memory cell population in the…

A: T cell mainly two types helper T cell ( Tc) and cytotoxic T cell ( Tc).  Tc cell can kill certain…

Q: Red cell count is carried out by a) Electrogram b) Sphygmomanometer c) Haemoglobinometer d)…

A: * Electrogram tracing of the electrical potentials of a tissue like brain or heart made by means of…

Q: How many chromosomes are provided to a zygote from each gamete? O 23 O 46 O 46 pairs

A: Fertilization is the process of fusion of two gametes of male and female to form a zygote containing…

Q: All steroid hormones are synthesized from: O triglycerides O amino acids O phospholipids cholesterol

A: Steroid hormones are one of the most vital set of hormones circulating in the human body. The organs…

Q: Which of the following is a correct assumption based on scientific findings?   a. Neandertal…

A: Neandertal These are the species of the genus Homo called Homo neanderthalensis. These are the…

Q: Why do organisms require organic molecules?

A: Introduction Organic molecule is a complex molecule that contains the element carbon bonded with…

Q: 2. Draw out a labeled diagram explaining all the following processes: Gel Filtration Chromatography…

A:

Q: biological safety

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Q: Please draw a dichotomous key using these tests to isolate each bacteria strain. Start with Gram…

A: * A dichotomous key is used to find out the different individuals based on their observable traits.…

Q: How do a spectrophotometer analyze a blood sample ? How do you prepare the sample to be analysed ?

A: A spectrophotometer measures the degree to which a chemical substance is able to absorb light when…

Q: Cytokine associated with development of autism is- IFN-gamma O TNF-alpha O IL-6 O IL=1 beta

A: Cytokine These are small proteins that are involved in cell signalling. These are the components…

Q: Active as opposed to passive immunity may be acquired by: O having a disease or receiving a vaccine…

A: Immunity:  The presence of antibodies to a disease in a person's system confers immunity against…

Q: The effect of an inhibitor I on the rate of a single-substrate, enzyme-catalyzed reaction was…

A: The Michaelis-Menten equation for enyzme kinetics is : VO = Vmax[S] / Km + [S] The Lineweaver-Burk…

Q: Release of T cell cytokines is is controlled via sympathetic activity. Which of the following…

A: Sympathetic innervation or sympathetic nervous system is a division of nervous system that…

Q: In ecological succession plants change the physical environment allowing new species to colonize.…

A: *Ecological succession is the process in which mix of species and habitat changes over time so hence…

Q: Enteric glia (specialized macrophages) are in close proximity to neurons and outnumber neurons- O 4-…

A: The word “glia” is inferred from the Greek word “γλοια,” stick of the enteric anxious framework, and…

Q: The CMC of SDS is 8.2 mM at 25 °C. Please describe the biological membrane solubilization when [SDS]…

A: The micelles at lower concentration behaves as normal electrolyte  wheras in higher concentration,…

Q: When an organism exhibits ____________ growth, its fecundity ________ with age, until senescence.…

A: when organism lets say plant show determinate growth its always finite so fecundity decreases until…

Q: P generation white eyed males X Red eyed females F1 generation Red eyed females X Red eyed males F2…

A: Genotypic and phenotypic ratio Genotypic ratio as the name suggests defines the gene whether they…

Q: Forms channels that allow small water-soluble molecules including ions to pass from cell to cell?…

A: Cell junctions are specialized contact sites through which cells are linked to one another cells or…

Q: Q A fHen one turn of he citrưc acid ccle, thich conlron C) Oxaloocebate? Draw the caid crcle…

A: a.  After one citric acid cycle, those carbon atom is liberated which come from acetyl-CoA.

Q: You were given two examples of learning in class.  One related to wasps using landmarks to find…

A: *Here Given that one is related to wasps using landmarks to find nesting sites.  *The other one is…

Q: If a person were stranded for two days with virtually no drinking water, you would expect the…

A: ANSWER;-Production of concentrated urine. Explain;- The production of concentrated urine includes…

Q: 6. A plant breeder crossed.a red flowered hibiscus plant with a yellow flowered hibiscus, offspring…

A: Incomplete dominance   When neither of the Alleles are dominant , then incomplete dominance is said…

Q: Describe the west nile virus microbe and its characteristic

A: The West Nile virus (WNV) is a neurotrophic factor human virus that causes encephalitis and West…

Q: Rotational movement of the head is sensed by the: middle ear semicircular canals O cochlea O…

A: ANSWER;- Cochlea Explain;- The vestibular receptors lie in the internal ear close to the auditory…

Q: Question 4. What is the effect on a targeted MRNA when it is silenced by a miRNA that has only a…

A: Introduction RNA is normally single stranded structure.Three types of RNA have been identified that…

Q: What is the response to growing global health concerns after 1900?

A: The global health scenarios has improved to a great extent with the advancement in the technology.…

Q: Why don't paleoanthropologists use C-14 dating to understand when early hominins lived?

A: Carbon-14 dating, also known as carbon dating, is a method of determining age based on radiocarbon…

Q: The anticodon 3’-CUG-5’ can base pair with which codon in mRNA?

A: Introduction :- A trinucleotide sequence at one end of a transfer RNA (tRNA) molecule that is…

Q: Table 10: Some Important Events in Geologic Time Era Period Triassic Epoch Event Age of Reptiles…

A: * Modern mammals have evolved from preceeding animals . * Formation of modern humans from azoic era…

Q: Please answer the ff. questions  7. What are the different solid phases that antibody or antigen…

A: The primary antibody with an attached conjugated enzyme is added which binds specifically to the…

Q: GQ#7: Devil's Hole is a warm spring located within the Ash Meadows National Wildlife Refuge in…

A: Devil's hole is located in death valley National park which is a isolated spring from Ash meadows…

Q: What factors determine how easy or difficult it is for a human to achieve homeostasis in their body?

A: Introduction - Homeostasis is the tendency to resist change in order to keep an internal environment…

Q: Jo does not have a bent little finger, but his parents do. What is the expected phenotypic ratio…

A: The phenotypic proportion or ratio is a quantitative connection between phenotypes showing the…

Q: 30. Which of the following could be correctly deduced from the photo? L Cente Source:…

A: Noonan syndrome is an autosomal genetic disorder that affects both males and females. It is the male…

Q: Polymerase Chain Reaction

A: PCR is a laboratory technique for making millions of duplicates of a specific segment of DNA. In…

Q: Concerning their biological function what is the difference between mitosis and meiosis?

A: Introduction - They give the body structure, take in nutrients from meals, turn them to energy, and…

Q: Do substance's effect impedes the binding of NAD+ to electrons

A: The electron transport chain is a protein cluster that transports electrons across a membrane within…

Q: Question 14 In which of the following situations would you expect to find the largest number of…

A: Introduction A food chain is a network of links in a food web that starts with producers and ends…

Q: Below is a histogram showing the results from a previous class’s dataset. Some trials resulted…

A: Variation is vital for species survival because it allows the organism to overcome adversity.…

Q: The cell found to regulate functional ant-viral brain-resident CD8T cell development is the…

A: The expansion phase of a CD8 T-cell response to an acute viral infection leads to the production of…

Q: Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome…

A: Next step after attachment (binding) to the CD4 and CXCR4 receptors on the TH cell.

Q: What is the food needed by mango plants/trees? How do they obtain their food? How do they perform…

A: Mango is the autotrophic photosynthetic plant. A mango tree requires high-nitrogen fertilizer…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: