Q: Illustrate the step by step method of preparing culture media.
A: Introduction Culture medium:- It is a liquid or gel designed for specific mixtures of nutrients and…
Q: What is cutis anserina? Why is it significant in our body’s thermoregulation?
A: Introduction Thermoregulation:- It is a biological mechanism that allows your body to maintain its…
Q: A transgenic mouse was engineered to be susceptible to polio infection. What human receptor did it…
A: Introduction :- Mice that have had DNA from another source inserted into their DNA are known as…
Q: Explain how the features listed in Table 1 serve as adaptations that might improve the survivability…
A: The animal body is a very complex creature made up of several systems. Each system in the body has a…
Q: Question 28 Which of the following is NOT an accessory organ of digestion? O pancreas O gall bladder…
A: Answer is appendix
Q: In mRNA processing, the first protein to bind to the signaling region near the cleavage site of the…
A: Pre-mRNAs are processed in three phases in eukaryotic cells:Ending at the 5' mark.At the 3' end, a…
Q: 5. Genes play important roles in the evolution of organisms. 6. Descent with modification is the…
A: NOTE: Please mention the parts needed in case of multiple questions or questions with multiple…
Q: Female Drosophila with cinnabar eye (cn) and vestigal wings (vg) were mated to males with roof wings…
A: Answer
Q: Give the common name of the following: answer 1,2,3,4,5,6,7 and 8. 1. Diphyllobothrium latum 2.…
A: Introduction Tapeworms are a type of intestinal parasite, Tapeworms are flat, segmented worms that…
Q: 8) Capillary electrophoresis involves a) Fragmentation of the DNA strands b) High resolution…
A: Capillary electrophoresis is an experimental methodology that provides an applied voltage to…
Q: Question 10. Which of the following models best describes how DNA is replicated? A. Conservative B.…
A: Introduction :- The process of replicating a double-stranded DNA molecule into two identical DNA…
Q: E. coli DNA polymerase III synthesizes two new DNA strands during replication, yet it possesses…
A: DNA replication is necessary to ensure genetic continuity and genome inheritance from parents to…
Q: (a) Compare and contrast some of the different mechanisms used by pathogens to establish an…
A: Pathogens are any microbes that can cause infection and diseases in plants and animals. The…
Q: If AaBbCC breeds with AABBCC, what is the probability of the genotype AABBCC in the offspring? O 4 *…
A: The genotype is the hereditary information passed down through generations, while the phenotype is…
Q: The canonical DNA polymerase are the main DNA synthetic enzymes in human cells and they carry out…
A: DNA polymerase is the enzyme which found in every cell. It is a holoenzyme which have different…
Q: 9. The sister chromatids begin to coil more tightly and become visible under a light microscope…
A: DISCLAIMER Since you have asked multiple questions, we will solve the first question for you. If you…
Q: 19. The three heads of the pointed muscle include the following, except: a. Vastus externus b.…
A: Answer :- Option (C) is correct. - Rectus femoris.
Q: metals to different xenobiotic
A: There are basically five main possible mechanisms of heavy metal resistance of microorganisms-
Q: 1) Give the genotype of the offspring (this time simply follow the given sequence above and separate…
A: There are three types of genes in Drosophila . These are :- I ) Cinnabar eyes :- Cinnabar eyes are…
Q: In figure 28.6 the data suggests that 8 6- 2- 0=101.4 °F 0- 70 85 90 95 -21 -4- -6- -8- -10…
A: Thermoregulation is the method through which your body keeps its internal temperature constant. All…
Q: . What are the three principles of the theory of evolutionby natural selection?
A: Introduction :- Evolution refers to the change in a species' characteristics over several…
Q: Question 64 The cell formed through fertilization of an egg by a sperm is called a/an O zygote. O…
A:
Q: Tell five (5) facts about respiratory system
A: The respiratory system is the organization of organs and tissues that assist you with breathing. It…
Q: Which statement is not true of the zygomycetes? (a) many members of this group form endomycorrhizae…
A: Introduction :- The Zygomycetes, also known as 'pin moulds,' are true fungi that form extended…
Q: Explain at the molecular level how brown adipose tissue (brown fat) produces heat by non-shivering…
A: Adipose tissue are basically loose connective tissue which are considered as energy reservoir . In…
Q: Echinodermata d. Pandak py Chordata e. echidna Meristics amphibians reptiles f. Architeuthis g.…
A: Coelenterates are also known as cnidaria. These are diploblastic organism, having tissue grade…
Q: A cell membrane with no proteins will still show which process? a) active transport b) facilitated…
A: Introduction :- The cell membrane, also known as the plasma membrane, separates the interior of the…
Q: Explain why are hemichordates classified "not true Chordates
A: The phylum Hemichordata includes worm-like marine organisms with a proboscis that grows out of the…
Q: As has been done since the beginning of time, removing the lens of the eye for the purpose of…
A: Cataract surgery is one of the most common procedures performed worldwide. It is also one of the…
Q: Density-dependent inhibition" is explained by which of the following O as cells become more…
A: Introduction Density-dependent Inhibition:- It occurs when cells grow to a limited density then…
Q: 2. When the enzyme telomerase was discovered, some termed it the "foundation of youth", as it is…
A: Telomerase are the enzymes also known as telomere terminal transferase is the enzyme made of protein…
Q: While looking through a microscope in your anatomy lab, you see a cell whose cytoplasm has a pale…
A: WBCs also called as Leucocytes are colourless cells as they lack haemaglobin. These are nucleated…
Q: Question 1: Compare and contrast the different metabolic pathways used by cells to generate ATP,…
A: The main energy source comes from Glycolysis , Krebs cycle , Oxidative phosphorylation…
Q: The ascomycete life cycle typically includes (a) mainly diploid thalli (b) the formation of a thick…
A: Introduction :- Ascomycota are septate fungi with filaments divided by septa, which are cellular…
Q: C. The patient has a pneumonia infection in both lungs. a. Place the patient on bed rest and…
A: Pneumonia is a typical problem that influences a huge number of individuals every year. Germs such…
Q: Complement activation can occur via the classical and alternative pathway. (i) How do the two…
A: Introduction :- The complement system, also known as the complement cascade, is an immune system…
Q: Match the pair of words with the description of the difference between them. Negative allosteric…
A: Enzyme inhibitors are defined as molecules or compounds that bind to an enzyme and affect their…
Q: Question 47 Food is prevented from entering the trachea by the O larynx. O pharynx. O sphincter…
A: The tube like structure that connects posterior nasal and oral cavities to Larynx and esophagus is…
Q: Splicing machinery must recognize three portions of the precursor RNA molecule: the 5’ splice site,…
A: The spliceosome, a huge ribonucleprotein complex, is responsible for removing introns from…
Q: The error frequency (rate) of RNA-directed RNA synthesis is about mistakes every 105 to 106…
A: RNA or Ribonucleic acid is a single stranded genetic material found in many organisms, including…
Q: In a study, Şpraque-Dawley rats were infected with P. multocida type B2 and various characteristics…
A: Peyers patches count in grows examination for the normal rats is 90 and for infected rats it is 100
Q: Is the cell membrane in Bacteria consists of ester-linked lipids
A: INTRODUCTION A cell's plasma membrane, also called the cell membrane helps in protection. It also…
Q: After decades of work, Dr. Ricky M. isolated a small amount of attractase—an enzyme that produces a…
A: A gene is the essential physical and functional unit of heredity. Genes are comprised of DNA. A…
Q: List distinguishing characteristics, describe a typical life cycle, and give examples of each of the…
A: Fungus (plural fungi) are any of the around 145,000 known species of fungi, including includes…
Q: Show a complete circuit diagram of the model of the neuron using the specific numerical values for…
A: Electrical gradient and concentration gradient required at many places in the body for proceed many…
Q: Why would you resolve you PCR products by electrophoresis.
A: Electrophoresis is a method used in laboratories to segregate DNA, RNA, and protein molecules…
Q: Do you think that bacteria lacking the ice-protein could be isolated without the use of modern dna…
A: Bacteria are a type of living microorganism. These single-celled creatures are found everywhere on…
Q: The four nitrogen bases in RNA are adenine, _______, _______, and _______. Select all that apply.…
A: Introduction :- Ribonucleic acid is a nucleic acid that has structural similarities to DNA and is…
Q: Air rushes into the lungs of humans during inhalation because
A: The main function of the lungs is the process of gas exchange called respiration or breathing.
Q: 4. Write a short paragraph on mutations and how they may alter protein synthesis and function.
A: Introduction :- A mutation is a change in the genetic material in biology. This refers to changes in…
Step by step
Solved in 2 steps
- In what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration in the atmosphere that occurred during the Precambrian?Was there molecular oxygen in the earth's primitive atmosphere? How has that molecule become abundant?In which probable stage of physical and chemical evolution of life were gaseous oxygen and water also present?
- During what geologic period did life on Earth begin?Why did the evolution of multicellular organisms such as plants and animals have to be preceded by the evolution of oxygen-producing photosynthesis?The oxygen revolution changed Earth’s environmentdramatically. Which of the following took advantage of thepresence of free oxygen in the oceans and atmosphere?(A) the evolution of cellular respiration, which used oxygen tohelp harvest energy from organic molecules(B) the persistence of some animal groups in anaerobichabitats(C) the evolution of photosynthetic pigments that protectedearly algae from the corrosive effects of oxygen(D) the evolution of chloroplasts after early protists incorporated photosynthetic cyanobacteria
- Why would a rise in the availability of oxygen help explain why the Cambrian explosion occurred?How did the presence of molecular oxygen in the atmosphere affect early life?Direct evidence of life on early Earth comes from fossils of microorganisms that lived 3.5 billion years ago. But how did the first living cells appear?
- Which event in Earth’s historyeventually lead to the evolution of multicellular lifeforms?There was a large proliferation of fossils showing increase in diversity of life.What period is this?What is the correct order of appearance in the fossil record, starting with the earliest: eukaryotic cells, multicellular organisms, prokaryotic cells?