One of your classmates is planning to study endocytosis at neuronal synapses for their senior thesis. He is interested in what type of molecules neurons endocytose. They propose to use a cell line mutated in the microtubule motor kinesin to keep endocytic vesicles clustered at the synapse where they can be isolated into synaptosomes through differential centrifugation. The classmate shows you protocols for growing neurons in culture and one that demonstrates the feasibility of isolating synaptosomes. But you know there is something else wrong with this proposal that will keep it from succeeding. What is it?

Q: 4. Why do the dideoxynucleotides stop DNA extension?

A: The sequences of nucleotides on the DNA strand (dNTPs) constitute the genetic code or genome. The…

Q: Which of the following dephosphorylates PI 3,4,5-trisphosphate, thereby blocking the activation of…

A: The survival and growth is promoted by the PI3K-Akt signaling pathway. Protein Kinase B and…

Q: Explain the following statement in 4-6 lines   1. Premalignant (hyperplastic or dysplastic) cells…

A: Cancer is an uncontrollable growth of cell. Cell multiply by the process know as cell division, by…

Q: Instruction: Choose the best answer from the following questions and provide a one paragraph…

A: The pyruvate deficiency is a inherited condition where, lack or less production of pyruvate may…

Q: Explain the following statements in 4-6 lines Humans are living longer, and that increases the risk…

A: Humans live a longer life than many other species. Humans have an average age of about 70 years.…

Q: Which of the following antibiotic resistance mechanisms are most likely to be encoded by a single…

A: Any substance which is produced naturally, artificially, or through a synthetic origin that kills or…

Q: Saliva helps in digestion of 1. Starch 2. Fiber 3. Proteins 4. Fats

A: Answer :  saliva helps in digestion of :    1) starch .

Q: If the genome-wide Fst for humans globally is 0.11, do you think this locus is currently or has been…

A: Abstract Genome-wide association studies (GWAS) have evolved over the last ten years into a…

Q: A pest that could become a major pests when something change in the agroecosystem?

A: In agroecosystem;pest can be defined as any insects or animal species which can cause damage to the…

Q: Devan is an athlete who always skips breakfast so he can perform his morning workout in a fasted…

A: So it should be carbohydrates and fat but it's not given. So we will choose option D - All of the…

Q: 1. Causes spurious decrease in MCV

A: Cryofibrinogen

Q: Explain how genetic engineering saved strawberries.

A: Genetic engineering saved the strawberries.

Q: What organelle is associated with the N-glycosylation of the protein?

A: Answer : there are mainly two organelles associated with the N-glycosylation of the protein that are…

Q: ICY COLD WATER FoOr TOY WARM BATH TEMPERATURE WATER AATER In the picture, a person has a hand in…

A: Option c The tand that was in the hot water will feel cold and the hand that was in the cold water…

Q: What are the ways that you can do to help your body in maintaining your normal temperatute…

A: Homeostasis is ability of body to maintain a constant and balanced internal environment by adapting,…

Q: True or false? Explain your reasoning. Both Thelper (TH) and Tcytotoxic (TC) cells require the same…

A: helper T-cells and cytotoxic T-cells work together, Helper T-cells produce cytotoxic T-cells.…

Q: Summarize how the electron transport chain function to produce ATP in a bacterial cell versus…

A: The electron transport chain is a series of redox reactions that transfer electrons from electron…

Q: A pest that feeds and oviposit on the crop but do not inflict damage?

A: Answer :- Caddisflies is a pest that feeds and oviposit on the crop but do not inflict damage.

Q: humans, mutations can be the result of _________________. *   A. racial discrimination   B.…

A: This question is related to DNA mutations and their causes and wildlife protection and their…

Q: How does having herd immunity important with your battle with the COVID- 19 pandemic

A: *Immunity is a complex of biological system which have the the capacity to recognize and tolerate…

Q: Explain why the nucleotide sequence of the same gene that you inherited from your mother and father…

A: we inherit two copies of each chromosome—one copy from your mom and one copy from your dad. This…

Q: Why is counselling required before an HIV test can be done on a patient?

A: HIV  Human immunodeficiency virus . It spreads by sexual contact . It cause AIDS i.e acquired…

Q: Which of the delivery techniques mentioned in Table 2 can be used to best transfer recombinant…

A: * They are many techniques for delivering the recombinant plasmids into the recipient cells. *…

Q: Fill in the gaps (type your answers in all capital letters): Lactate fermentation is an important…

A: Lactic acid fermentation Some bacteria produce lactic acid from pyruvic acid. In animal cells also…

Q: An assassin bug that captures and kills orb-weaving spiders sometimes approaches a web and plucks at…

A: "Adaptation is a physical or behavioural trait of an organism that aids an organism's survival in…

Q: Describe the important steps in muscle contraction.

A: A repeated binding of the thick filament to the thin filament causes it to slide over the thin…

Q: What are the immunological implications of 'bare lymphocyte syndrome' /MHC deficiency?

A: Cell immunity

Q: There is a manufacturing plant that emits 10 tonnes of carbon annually. If this manufacturer were to…

A: Answer :- Option (C) is correct. - 3 tonnes.

Q: Molluscs can seem extremely different yet they share several core features. Sketch, label, and…

A: * many types of mollusca are present in the groups  Bivalvia  Cepholoda  Gastropods . Common…

Q: Blood is controlled by three alleles IA, IB, and i. A woman with O type blood has a baby with A type…

A: A blood type is a classification of blood, based on the presence and absence of the antibodies and…

Q: hat are the Similarities and differences between meioses and mitosis?

A: Cells are the fundamental building blocks of all living things and are usually found at the very…

Q: You have sequenced your new mouse model and identified a mutation that permanently activates the…

A: Introduction A mutation is a change in a DNA sequence base pair sequence due to various…

Q: L. polyrhiza or L. gibba: Which species might produce an allelopathic chemical? Time Time Time The…

A: Allelopathy is a characteristic where one organism produces a component that affects the neighboring…

Q: Multi-step tumor progression helps to explain familial polyposis.

A: *Familial adenomatous polyposis is an Autosomal dominant inherited condition in which adenomatous…

Q: ¹.Name any three viruses with RNA as the genetic material.

A: Retrovirus It is a virus that has its genetic material in the form of RNA.  When a retrovirus…

Q: Cells require O2to serve as a final electron acceptor in the process of cellular respiration, a…

A: Followings options are in serial wise

Q: The ovulated mammalian oocyte is arrested at: A. prophase of meiosis I B. metaphase of meiosis I C.…

A: The correct option is D.

Q: (i) Why does Neostigmine cause an increase in the twitch tension when the nerve is stimulated and…

A: Health epidemiology

Q: 1. Analyze the pedigree II II IV V

A: Pedigree analysis is a chart that represents a family tree showing the members of the family  who…

Q: Spotting in horses is dominant over solid color. Black color is dominant over red color.  Two…

A: A trait is a characteristic that is unique to particular individual . A dihybrid cross is a cross in…

Q: In the buccal cavity of human being, digestion of which one of the following get started? 1. Protein…

A: The correct option is CARBOHYDRATES

Q: What is the population density of corn in a hectare if the distance of planting is 75 cm x 33 cm…

A: Here are the conversion, (1m is 100 cm) First 75 cm will be 0.75m and 33 cm will be 0.33m

Q: The antibiotic kanamycin binds to the small ribosomal subunit of bacteria and interferes with…

A: There are three domains of life archebacteria, bacteria and eukarya. Bacteria are considered…

Q: 2. Within a population of butterflies, the color brown (B) is dominant over the color white (b),…

A: Given that among the butterflies:Brown (B) is the dominant allele and white (b) is the recessive…

Q: 5. In a given population, only the "A" and "B" alleles are present in the ABO system; there are no…

A: The Hardy-Weinberg equilibrium gives us idea about the allele and genotype frequencies in a…

Q: Could Water Temperature Affect the Prevalence of Anisakids Nematodes in Fish? please cite sources

A: Marine life and fishes

Q: There are rare instances when protein is used for energy in the body. Which of the following…

A: Option A and B are correct.

Q: Describe or demonstrate the mechanism of sex determination in humans, grasshoppers, moths,, fruit…

A: Sex determination is the determination of sex of an organism by observing the development of its…

Q: Examine a two-gene cross that follows simple Mendelian inheritance of freckles and eyebrow shape…

A: Two-gene cross :-

Q: In snakes, toxic skin (T) is dominantly inherited. Snakes with non-toxic sk homozygous recessive.…

A: Dominant character is expressed either in heterozygous or homozygous condition where as recessive…