Cells in your hair follicles produce the protein keratin, but cells in your liver do not produce keratin. Which statement explains these differencesA). Hair follicles contain recombined DNA, which create the protein keratin
B). Genes are expressed differently in liver cells and hair follicles
C). Hair follicle cells contain different genes from liver cells
D). Hair follicle cells do not produce DNA, but liver cells do

Answers

Answer 1
Answer:

Answer:

B). Genes are expressed differently in liver cells and hair follicles

Explanation:

In given organisms all the cells of the body have the same number of genes, however, their activity varies due to differential expression of genes.

The differential expression of genes is regulated by several factors, such as histone modifications, DNA, etc. which may silence or activate the genes differentially in different cells.

Since the hair cells and liver cells of the organisms will have the same genes, they only vary due to the differential expression fo the genes.

Answer 2
Answer:

Answer:

B) Genes are expressed differently in liver cells and hair follicles

Explanation:

Cell differentiation helps produce different cells with different functions that express different genes in the genome.

Liver cells and hair follicles are an example of cell differentiation creating different functions in multi-celled organisms.


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You have a total body concentration of 300 mOsM and total body volume of 3 liters. If you add 0.5 L of a solution containing 150 mosmol of NaCl to the body, what would the new total body concentration be?a) 450 mOsMb) 300 mOsM
c) 350 mOsM
d) 700 mOsM

Answers

Answer:

300 mOsM

Explanation:

The application of osmotic equilibrium comes in.

Using the equation; solute/volume = concentration

S/V =C

1. All fungi are ____A. Photosynthetic
B. Heterotrophic
C. Autotrophic
D. Parasitic

Answers

Answer:

All fungi are heterotrophic. (B)

What are the 4 stages of mitosis and what does each stage do?

Answers

prophase, metaphase, anaphase, and telophase

A powerful computer is used to develop new drugs by looking at the molecular structure and chemical composition of target cells and creating substances that will bind to certain molecules, affecting their function inside the body. What is the term for this new technology?A. PharmacogenomicsB. GenometricsC. Personalized medicineD. Rational drug design

Answers

Answer:

A. Pharmacogenomics

Explanation:

The use of persons genetic makeup or information or genome, to select or choose the medicine and dosage of the drugs to be administered  that will likely work t for that particular person is called Pharmacogenomics . This  field of science combines the knowledge of how drugs work, called pharmacology, with the knowledge of the human genome, called genomics.

The aim of Pharmacogenomics is to optimize drug therapy, with consideration on the patients' genotype. Moreover it targets to ensure maximum efficiency with minimum adverse reactions. By utilizing pharmacogenomics, we have a high hope that drug treatments can veer away from the "one-dose-fits-all" approach to medication.

Treadmiling contributes to actin based motility

Answers

La actina es una familia de proteínas globulares que forman los microfilamentos, uno de los tres componentes fundamentales del citoesqueleto de las células de los organismos eucariotas (también denominados eucariontes). Puede encontrarse comomonómero en forma libre, denominada actina G, o como parte de polímeros lineales denominados microfilamentos o actina F, que son esenciales para funciones celulares tan importantes como la movilidad y la contracción de la célula durante la división celular.

De la importancia capital de la actina da cuenta el hecho de que en el contenido proteico de una célula supone siempre un elevado porcentaje y que su secuencia está muy conservada, es decir, que ha cambiado muy poco a lo largo de la evolución.2 3Por ambas razones se puede decir que su estructura ha sido optimizada. Sobre ésta se pueden destacar dos rasgos peculiares: es una enzima que hidroliza ATP, la "moneda universal de la energía" de los procesos biológicos, haciéndolo muy lentamente. Pero al mismo tiempo necesita de esa molécula para mantener su integridad estructural. Adquiere su forma eficaz en un proceso de plegamiento casi dedicado. Además es la que establece más interacciones con otras proteínas de cuantas se conocen, lo que le permite desempeñar las más variadas funciones que alcanzan a casi todos los aspectos de la vida celular. La miosina es un ejemplo de proteína que une actina. Otro ejemplo es la vilina, que puede entrelazar la actina en haces o bien cortar los filamentos de actina, dependiendo de la concentración de catión calcio en su entorno.4

Which types of plants wouldn't thrive in dry forests?angiosperms
bryophytes
gymnosperms
seedless

Answers

Bryophytes and angiosperms might survive in dry forests but would not thrive. Bryophytes (mosses etc) prefer moist habitats to thrive. Angiosperms, or flowering plants, typically need at least moderate rainfall for the flowers to come to fruition and bear seeds, as well as for the seeds to be able to get down into the soil and take root.