Q: During the flexion phase of a biceps curl, the elbow flexors are: O Contracting isometrically O…
A: Introduction Muscle contractions are classed based on the movements they produce, and in fitness,…
Q: Which of the following is NOT the function of white blood cells? O Guard against infection. Fight…
A: White blood cells serve the following purposes: - Fighting off infections Fighting off parasites…
Q: Ruby has sustained damage to the ventral root, which is just next to the spinal cord at the level of…
A: Anatomy of spinal cord The spinal cord has two roots, one is called the dorsal root and the other is…
Q: All of the following evolutionary mechanisms have the potential to result in divergence between two…
A: Introduction Divergent evolution is an evolutionary trend in which species with a common ancestor…
Q: Which of the following molecules can be broken down into acetyl and enter the citric acid cycle? OA)…
A: Introduction The citric acid cycle is also known as the TCA cycle (tricarboxylic acid cycle) or…
Q: sing the cladogram below, answer the following question. The wolf, leopard, and domestic cat are all…
A: A cladogram is a diagram used in cladistics to show relations among organisms.
Q: 2 ATP + HCO₂ + NH₂ 140 CPS-1 H₂N OPO,2 H₂N 2 ADP, P CH₂ HỘ NHỎ coo 1 0=UN NH₂ P OTC ARG1 H₂O NH₂ H₂H…
A: Introduction In humans, ammonia is produced through the breakdown of amino acids or by gut…
Q: Compare and contrast: TRANSCRIPTION and TRANSLATION Give 2 similarities and 2 differences. Be…
A: Introduction DNA acts as a genetic material in our body. DNA contains gene or the basic unit of…
Q: A client engages an engineering firm to develop environmentally-friendly packaging for the sports…
A: Introduction Sustainability is defined as the method of utilizing the resources and meeting the…
Q: Describe the step of protein synthesis.
A: Processing of mRNA occurs just after transcription in the nucleus of cells. In this process,…
Q: The two components common to all viruses are nucleic acid (either DNA or RNA) and protein coat…
A: Viruses are non-cellular entities that are characterized by an inert crystalline structure outside a…
Q: Do you think the environment shapes the plants it hosts? Or is it the other way around?
A: The biotic and abiotic elements that govern forage growth and development are referred to as the…
Q: Which of the following combinations describes the electron in the modern model of an atom? Onegative…
A: Atom It is a particle of matter that constitutes the nucleus and the orbits. The nucleus contains…
Q: C) How might sexual selection lead to exaggerated morphology or behavior? (D) and how might natural…
A: Introduction Sexual selection is a type of natural selection seen in sexually reproducing organisms…
Q: List three ways that enzymes can become denatured and lose their function.
A: Enzymes can denature and lose their functions by following ways - Increase of temperature…
Q: NADPH required for the enzyme glutathione reductase can be generated from-* a) HMP pathway b)…
A: NADPH ( nicotinamide adenine Di nucleotide phosphate) is the reduced form of NADP+ NADPH provides…
Q: Identify the bond given in this molecule HO CH2OH OH OH HO CH 2 ОН O OH OH
A: All carbohydrates consist of carbon, hydrogen, and oxygen atoms and are polyhydroxy aldehydes or…
Q: 1. Is it possible that both labs are correct? How might this occur, and can you provide any…
A: DNA and RNA are the two major genetic materials found in different life forms. In genetics, the…
Q: 5. TRUE OR FALSE: a. A peanut is a nut. b. All legumes readily split open at maturity. c. A true nut…
A: Introduction In biology fruits are the structure formed from ovary and which contain seed. There are…
Q: Time (Years 21. The graph above shows data for the amount of light-colored and dark-colored peppered…
A: Natural selection Natural selection is a process by which an organism adapts to its natural…
Q: Exam e to search 389620231 What did amphibians develop that made them more advanced than their…
A: The anceators of amphibians was lobed finned fish silimar to present day lung fish. Gradually…
Q: 7. If you look closely at an image of a clear-cut forest, you can see that clear-cutting does more…
A: Humans rely on ecosystems for a variety of unseen services. For example, ecosystems provide foods,…
Q: Enzyme-substrate complex Enzyme What concept does this picture illustrate? 4° structure hydrogen…
A: Introduction :- A catalyst is a substance that is used to influence the rate of a reaction. Enzymes…
Q: In class we discussed several feedback processes including homeostasis, predator-prey relationships,…
A: Homeostasis is the condition in which the internal system of the body remains constant despite…
Q: mitochondrial matrix
A: The events of the electron transport chain involve NADH and FADH, which act as electron transporters…
Q: Does the plants shapes their environment? Yes or No. Explain and discuss your answer. Provide some…
A: Plants have the ability to detect and respond to alterations in the environment. Plants are present…
Q: Blant an minor swelling No change swelling and lysis plasmolysis crenation Reset Zoom cell each The…
A: A plant cell contains a large, singular vacuole that is used for the storage and maintaining the…
Q: Identify the fixation and embedding protocols of seed tissues for microtome sectioning? How thin…
A: Microtome A microtome is a mechanical instrument which is used to make thin slices of tissues. Thes…
Q: Which organ is made up of air-carrying tubes and tiny sacs? The diaphragm The stomach The lungs The…
A: Introduction Breathing is made possible by the respiratory system. They infuse our bodies with…
Q: I 7. Sarah believes that giraffes have long necks because those with long necks were able to reach…
A: Evolution is the change in characteristics of species from one generation to another. Charles…
Q: 30. When organisms develop similar features in environments that are geographically far apart but…
A: Ans: Convergent evolution
Q: Draw a diagram that illustrates how these chromosomes pair up during Metaphase I of Meiosis. Be sure…
A: Metaphase I Meiosis is also called reductional division as it results in the production of 4 haploid…
Q: imagine a giraffe whose diploid is 30. A)Under what circumstances would the giraffe go through a…
A: Meiosis It is a kind of cell division where the number of chromosome reduced.
Q: There have been five main mass extinctions. Match each mass extinction event to its description. 1.…
A: Introduction Extinction is the death of a type of organism or a group of organisms, most commonly a…
Q: Select the correct terms to complete the statement about ecosystem disturbance. If an ecosystem is…
A: The geographic area consisting of both biotic and abiotic components of nature to form the bubble of…
Q: his homework question I have been having difficulty figuring out what the atomic mass is for Gi + ^2…
A: These two elements are termed isotopes of each other when they have the same number of protons,…
Q: Is there any other steps or is this the full solution? im still a bit confused.
A: Punnette square is the tabular representation of different phenotypes and genotypes in a cross.…
Q: No. of nucleotide found in DNA segment if it contains 100 Adenine and 100 cytosines, (a) 100 (b) 200…
A:
Q: Question:- Biology Describe the cellular branch of adaptive immunity and name its key effector…
A: The major histocompatibility complex (MHC) is a large locus on vertebrate DNA that contains a…
Q: hoose the correct answer to fill in the blanks: The dorsal roots carry (sensory, motor, or both)…
A: Each spinal nerve has two roots, a dorsal or posterior (meaning “toward the back”) one and a ventral…
Q: 5. Which of these best describes a climax community that results from succession? O a. a forest of…
A: Plants can survive in all types of environments and hence are found anywhere on Earth. Plants are…
Q: |(A) A well trained alien biologist visiting earth would be able to tell that the mating system of…
A: A) mating competition will be more intense in gorillas compared to humans and size very much matters…
Q: For this question, Order the terms according to scale from smallest to largest. Label the smallest…
A: The living world is in close association with the non-living components on the earth. The different…
Q: Given below is a macromolecule HO Near 1. Based on the functional groups shown what type of molecule…
A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…
Q: Question 18 What is the complement of this sequence of DNA: 5'-CCTATCGA-3'? O 3'-AGCTATCC-5'…
A: Only the letters A, C, G, and T appear in the DNA sequence. A DNA sequence is a "macromolecular"…
Q: (A) Define Eusocial behavior. (B) What is it about the mating system of Eusocial hymenoptera that…
A: Eusociality or eusocial behavior is the Greek word, in eu means good and social. It is the highest…
Q: 1. What does Bio mean in BIODIVERSITY? a) Life b) Water c) Variety d) Earth
A: DISCLAIMER FOR MULTIPLE Since you have asked multiple question, we will solve the first question for…
Q: Which of the following can typically decrease genetic variation? Otoxins O predator-prey…
A: Evolution is a steady phenomenon which bring about a change and transform the life from simple one…
Q: Which result from the Miller and Urey experiment provides evidence that the molecules of life could…
A: Introduction :- The Miller-Urey experiment was the first to show that inorganic components might be…
Q: What are transposable elements ? Explain how they contribute to the evolution of genomes
A: Introduction: In biology, evolution refers to the change in a species' features over numerous…
Step by step
Solved in 3 steps
- a. The original constitutive operator mutations in thelac operon were all base changes in o1. Why doyou think mutations in o2 or o3 were not isolated inthese screens?b. Explain how a mutagen that causes small insertions could produce an ocmutation.c. Would a strain with one of the ocmutations described in part (b) and also a lacIS mutation be ableto make β-galactosidase either in the presence orabsence of inducer? ExplainSuppose you have six strains of E. coli. One is wildtype, and each of the other five has a single one of thefollowing mutations: lacZ−, lacY−, lacI−, oc, andlacIS. For each of these six strains, describe thephenotype you would observe using the following assays. [Notes: (1) IPTG is a colorless synthetic molecule that acts as an inducer of lac operon expressionbut cannot serve as a carbon source for bacterialgrowth because it cannot be cleaved byβ-galactosidase; (2) X-gal cannot serve as a carbonsource for growth; (3) E. coli requires active lactosepermease (the product of lacY) to allow lactose,X-gal, or IPTG into the cells.] Colony color in medium containing glycerol as theonly carbon source and X-gal, but no IPTG.d. Colony color in medium containing high levels ofglucose as the only carbon source, X-gal, andIPTG.e. Colony color in medium containing high levels ofglucose as the only carbon source and X-gal, butno IPTGIn an investigan of Lac operon experiment, the bacteria were placed in dropper bottles containing glycerol as a carbon source. Why did the culture have to be incubated for an hour in the new media? Explain in a detailed way.
- Explain why there is a part of the lac operon in pET32a(+) and also how the natural biochemical process wherein it normally functions is used during cloning by molecular biology.Do these experiments suggest that the arabinose operon is negatively or positively controlled? Explain your reasoning.Why trp operon has a higher level of expression than live operon in bacteria grown on nutrient-poor agar plates? Explain with clear reasoning
- What was the eventual hypothesis proposed bythe researchers to explain the function of the lacI gene and theregulation of the lac operon?Attardi et al. (1963) found that lactose operon mRNA synthesis in coli increased with the addition of inducer. Do the inducers act at the transcription or translation level? Explain.What is/explain stochiometry matrix for lac operon model? Please answer asap
- To determine the reproducibility of mutation fre-quency measurements, you do the following experiment.You inoculate each of 10 cultures with a single E. coli bac-terium, allow the cultures to grow until each contains 106cells, and then measure the number of cells in each culturethat carry a mutation in your gene of interest. You were sosurprised by the initial results that you repeated the experi-ment to confirm them. Both sets of results display the sameextreme variability, as shown in Table Q5–1. Assuming thatthe rate of mutation is constant, why do you suppose thereis so much variation in the frequencies of mutant cells indifferent cultures?What is an operon? Explain an inducible operon.Attardi et. al (1963) found that lactose operon synthesis in E.coli increased with the addition of inducer. Do inducers act at the transcription or translation level? Explain.