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2 years ago

What is a change in a DNA sequence called

1 answer:

6 0

Mutation. this happens when a cell copies its DNA to divide. its more common than you may think, a "typo" occurs every 100, 000 or so nucleotides, thats about 120, 000 "typos" every time a cell divides.

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From what direction do most weather systems move as they begin to affect New York State? (1) northeast (3) southeast (2) northwe

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(2) northwest or (4) southwest

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2 years ago

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All of the following statements are True EXCEPT 2,3-bisphosphoglycerate decreases the affinity of hemoglobin for oxygen. hemoglo

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Answer:

hemoglobin will bind more oxygen when the partial pressure is low than when the partial pressure is high.

Explanation:

Binding of hemoglobin to oxygen is regulated by several factors. However, the partial pressure of oxygen is the most important factor that determines how much oxygen will bind to hemoglobin. When the partial pressure of O2 is high, hemoglobin binds with large amounts of O2. On the other hand, when the partial pressure of O2 is low, hemoglobin is only partially saturated.

Therefore, the greater the partial pressure of oxygen, the more O2 will bind to hemoglobin until saturation is reached. This is why a lot of O2 binds to hemoglobin in pulmonary capillaries where the partial pressure of oxygen is high.

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2 years ago

Identify which organisms can be infected by viruses. Choose one or more: A. Protists B. Bacteria C. Animals D. Plants E. Fungi F

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Answer:A. Protists B. Bacteria C. Animals D. Plants E. Fungi F. Archaea

Explanation:viruses are small non-living particles that contains hereditary materials.viruses attack cells of other organisms such as plants , bacteria ,archaea etc.

Viruses are acellular and contains either DNA or RNA.they cannot synthesis protein as they lack ribosomes ,so they use the ribosomes of the cell they have invaded to synthesize they proteins they need.

A virus usually has a central core surrounded by an outer protein coat called capsid.

Viruses can reproduce only within the living host cells and they are specific to the type of cells they attack.they attack plants through insect vectors or through openings on the plants.

Viruses can affect bacteria by injecting their nucleic acids through the cell wall and into the bacteria cell.such viruses are called bacteriophages.

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2 years ago

Approximately how many gallons of water are used per year in a typical home? 1 million gallons 500,000 gallons 150,000 gallons 1

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146 gallons of water

<h2>Further explanation </h2>

The human need for water (for drinking) is 8 glasses a day or about 2 liters. 1 gallon usually contains 19-20 liters. One house usually consists of 4 people <em>(father, mother, brother, sister). </em>

If one person consumes 2 liters of water, then one house will consume about 8 liters a day.

Which will take up 2 gallons in 5 days.

1 Year = 365 days

365 days : 5 days <em>(2 gallons)</em> = 73 <em>(gallon water refill frequency) </em>

73 x 2 = 146

So, within 1 year the level of gallon water consumption in an ordinary house consumes 146 gallons of water.

That is the calculation of the use of gallons for consumption, <em>not for bathing, washing, pooping, urinating, etc. </em>

Learn More

water consumption level brainly.com/question/8368059

gallon refill frequency brainly.com/question/8368059

Details

Class: High School

Subject: Biology

Keywords: gallons, water consumption, liters

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3 years ago

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One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How

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Answer:

Scientists know that any response during an experiment is associated only with that cell type.

Explanation:

A cell culture is a group of cells that develops from a single original cell. Biologists can use cell cultures to test cell responses under controlled environmental conditions in order to study interactions between cells, and different processes occurs in it. Cell culture is one of the major tools used in the study of physiology and effect of toxic substances on the cells.

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3 years ago