Which of the following is a characteristic of stage N3, or slow-wave sleep? a. paralysis of voluntary muscles b. increased heart rate c. deepest level of sleep d. increased body temperature

Q: The ends of many eras and periods in the geologic time scale are characterized by  mass extinction. ...

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Q: 7:00 A diploid oeganism has Use coloun or mbols to show which cheomosomes a which throughout each st...

A:

Q: What is the affinity, the efficacy, and potency of a drug?

A: Introduction: Pharmacology is a branch of medicine and pharmaceutical sciences which is concerned wi...

Q: In a cell where 2n=20, nondisjunction of two pairs of chromosomes will results into what types of ga...

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Q: Condition: In photosynthesis there are various kinase enzymes that convert ATP --> ADP + Pi. A mutat...

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Q: a. Rank the three cell membranes in terms of decreasing fluidity. Provide an explanation of your ran...

A: Key terms Term Meaning Cell membrane Specialized structure that surrounds the cell and its ...

Q: Cold-blooded organisms may adapt to changing environments by making their membranes more fluid when ...

A: The study of the molecular mechanisms of bioactivity between and within cells, comprising molecular ...

Q: 2. For each DNA sample, draw a linear stretch of DNA about 15 nucleotides long, with a nucleotide co...

A:

Q: Nucleus Rough ER Golgi apparatus Plasma Vesicle membrane

A: Vesicles are involved in the transport of materials to and forth from the plasma membrane into the c...

Q: Would you expect to find nuclear localization sequences(NLSs) in the proteins that make up prokaryot...

A: A nuclear localization sequence is an amino acid sequence that aids in protein transport (import) in...

Q: How is it that the insects form legs only in their three thoracic segments and have no legs on their...

A: Arthropods are animals with jointed appendages that account for more than 90% of all animals in the ...

Q: Why is myosin II the only myosin capable of producing contractile force?

A: Introduction Myosins are a group of motor proteins that play a key role in muscle contraction and a ...

Q: Name and briefly describe the four phyla of gymnosperms.

A: Gymnosperms are plants that do not flower and have naked seeds. There were six phyla of gymnosperms ...

Q: Chi-square computed

A: Chi-squared tests are a statistical measure that are used to determine whether the difference betwee...

Q: Question 1: A male does not have the symptons of sickle cell disease or Marfans, while his wife has ...

A: Genetic disorders are caused by one or more alleles that can cause the disease. The normal copies of...

Q: Discuss the evolutionary adaptations of flowering plants.

A: Introduction:- The process through which organisms adapt to their surroundings in order to enhance t...

Q: 2. A hiker got lost while hiking in the Mohave desert in Arizona. When she was found by a search gro...

A: Distilled water is pure water with no solutes. present in it. Water is absorbed by the cells through...

Q: Among prokaryotes, only the cyanobacteria ________ .a. live near hydrothermal ventsb. produce oxygen...

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Q: ure 1 is a bacterial gene (1-180). The first base to be transcribed is the base located at sition 77...

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Q: Answer the following questions and explain your answers. 1. If the steps involving yeast inoculatio...

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Q: What is glycolysis? What are the products of this process?

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Q: What sociological theories explain social change?

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Q: During which phase of meiosis does ploidy reduction occur? Does ploidy reduction occur in mitosis?

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Q: Consider the genes that specify the structure of hemoglobin. Arrange the following events in the mos...

A: Hemoglobin is present in red blood cells.Hemoglobin is made up of heme and oxygen molecule and respo...

Q: You are on a hike and collect an interesting organism. You carefully examine and research the organi...

A: Introduction: Robert H. Whittaker, in 1969 proposed a new five kingdom system of classification of o...

Q: What type of bond (name other than covalent) that holds the monomers of carbohydrates together?

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Q: Describe the possible roles of allosteric modulation in theregulation of metabolic pathways.

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Q: Complete dominance at both gene pairs, however, when either gene is dominant, it hides the effect of...

A: Epistasis  When a gene effect the expression of non allelic gene then this phenomenon is known as ep...

Q: Distinguish among inducible, repressible, and constitutive genes.

A: A gene is a fundamental unit of heredity in biology, consisting of a sequence of nucleotides in DNA ...

Q: Explain Darwin’s theory of descent modification.

A: Charles Darwin was an English naturalist, geologist, and biologist, best known for his contributions...

Q: . In yeast, you have sequenced a piece of wild-type DNAand it clearly contains a gene, but you do no...

A: Introduction  In the RDT (recombinant DNA technology), we insert the segment of DNA into the vector ...

Q: B. Given the observed values below, is there an agreement between the expected and observed ratios? ...

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Q: In a population of Drosophila melanogaster reared in thelaboratory, the mean wing length is 0.55 mm ...

A: Heritability is the amount of genetic variance that occurs in the offspring, while retaining some of...

Q: In corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the m...

A: Cytoplasmic male sterility is partial or total sterility due to mitochondrial and nuclear interactio...

Q: A simple pistil consists of a single (a) calyx (b) carpel (c) ovule (d) filament (e) petal

A: Introduction :- The pistil is the female portion of a flower that bears seeds. It has a swelling bas...

Q: Select all statements that are true regarding members of the genus Mycobacterium. O They contain myc...

A: Introduction: TB or tuberculosis is a disease caused by a bacterium called Mycobacterium tuberculosi...

Q: What are the differences between direct and indirect life cycles? Give two (2) representative parasi...

A: Parasites are the organisms which lives and reproduce inside other organisms known as host.

Q: What Are the Differences Between Eukaryotic and Prokaryotic Cells?

A: Introduction In this question we will write the differences between Eukaryotic a d Prokaryotic cells...

Q: A single nucleotide addition and a single nucleotide deletion approximately 15 bases apart in the DN...

A: During protein synthesis, the nucleotide sequence of the mRNA is read in the form of triplets.  

Q: Which is a better indicator for Salmonella - coliforms or E. coli?

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Q: cells? (b) What are the (c) By what mech Hfr cells to F+ ce

A:

Q: What characters distinguish fungi from other organisms?

A: Introduction The kingdom Fungi, which includes yeasts, rusts, smuts, mildews, moulds, and mushrooms,...

Q: What would happen if we could act out our dreams? Would it be like sleepwalking?

A:     If anybody is having a REM sleep behavior disorder, then instead of experiencing of some ...

Q: Can someone explain the answer to this ptoblem and why binding would not activate the enzyme?

A: Glycolysis is the first step of cellular respiration that involves conversion of glucose into pyruva...

Q: During Prophase I, the homologous chromosomes formed a synaptonemal complex. diplotene O pachytene o...

A: Meiosis is a type of cell division that occur in our reproductive cells.  The main purpose of meiosi...

Q: A. Examine the crosses above and deduce the origin of G. hirsutum. Diagram your cross and give level...

A: Introduction: Bivalent is the term given to the association of the homologous chromosome as pairs th...

Q: Prototrophy is often the phenotype selected to detecttransformants. Prototrophic cells are used for ...

A: Part A. The phototrophic line is found to be vulnerable for any particular drug, in which the recipi...

Q: In order to determine the purity of a DNA sample, spectrophotometry can be carried our at Answer to ...

A: Spectrophotometry is the quantitative analysis of spectra to compare the relative absorption or emis...

Q: the one above: Replicate this sense strand to create a double-stranded DNA helix  TGAGGATGAAACTCACA...

A: DNA is a double helical structure containing complementary base pairs.  Complementary base pairs ref...

Q: Which of the following statements regarding loss of function and gain of function mutations is true?...

A: Mutations are alterations in the DNA sequence of an organism. Small changes, such as adding or remov...

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.