Problem 3 DNA Methylation DNA methylation is a process by which methyl chemical groups are attached to the DNA. Thus each gene in the genome can be methylated or unmethylated.Suppose that 80% of methylated genes remain methylated and 50% of unmethylated genes remain unmethylated each generation. (a) Express methylation model with the recursion x_(t+1)=Ax_(t) (b) Calculate the eigenvalues of A. (c) What is the long-term behavior of x_(t) (d) Using the initial condition x_(0)=[} a 1-a ] , express the solution to the recursion in terms of the eigenvectors and eigenvalues of A.

Around 80% of all alcohol ingested orally will be broken down by the __ lungs pancreas liver kidneys

Most plants have a variety of chemicals, spines and thorns that are advantageous because the plants cannot run away from herbivores. feed on the organisms that try to eat them. must rely on photosynthesis for food. are camouflaged into their surroundings.

A Type survivorship curve is associated with which life history trait? parents providing extended care for their young large numbers of offspring being produced infant mortality being much greater than adult mortality a short life span for most individuals

Carbon mainly cycles between the biotic and abiotic worlds through the processes of cellular respiration and photosynthesis. transpiration and photosynthesis. cellular respiration and transpiration. evaporation and photosynthesis,

A community is composed of potentially interacting populations of different kinds of organisms. living organisms and their nonliving environment. the factors that constitute an organism's niche. one species of organism living in a specific environment on Earth.

Camouflage typically evolves as a result of mutualism. interspecific competition. predation. herbivory.

The type of muscle that helps move our body is: Skeletal Cardiac Smooth

The protein that makes the skin water resistant is __ melanin keratin elastin collagen

The cardiovascular and respiratory centers are located in which part of the brain? thalamus medulla oblongata insulla cerebellum

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Which one of the following groups is composed of prokaryotic cells? View Available Hint(s) animals protists bacteria fungi

Which of the following is NOT a loose connective tissue? elastic cartilage areolar reticular adipose

X What structure combines together to create DNA? Sugar molecules Hydrogen bonds Nucleotides C Amino acids

A species with an initial population of 120 is growing in an environment where the carrying capacity is 750. After 3 years the population is up to 450 Use a logistic function to estimate the population after 5 years . Round to the nearest whole number. $Population=[?]$ individuals.

Multiple Choice Question Secretory IgA is NOT found in which of the following fluids? Tears Mucus Colostrum Stomach acid Saliva

Which statements are true about bacteria? (Select all that apply) They were one of the first life forms on Earth Their total biomass is greater than that of all plants and animals combined Some are multicellular They only live in human bodies.

Match each example on the left to the type of reproductive barrier on the right. A desert keeps frogs on either side from mating with one another. Female spring peeper frogs only mate with males that make a a. behavioral barrier b. physical barrier c. geographic barrier

Which of the following macronutrients is the preferred fuel for the brain and red blood cells? A proteins B lipids C water D carbohydrates E proteins and lipids

The technique developed by Hans Christian Gram is important for bacterial classification. etiology. identification. epidemiology. isolation.

Elements/metals found in food that regulate body functions Water Minerals Vitamins Carbohydrates