BIOLOGY HIGH SCHOOL

A mutation results in an organism that lacks the ability to make one amino acid .what is true of this organism ?a. the organism's ability to RNA has been changed
b. a gene has undergone a change in the organisms DNA
c. ribosomes in the organism do not function properly
d. All the Above

Answers

Answer 1
Answer:

Answer: The correct answer is-

b. a gene has undergone a change in the organisms DNA.

DNA ( deoxyribonucleic acid) contains instructions for protein synthesis in the form of codons ( a sequence of three nucleotides), which code for particular amino acid. DNA is converted to mRNA ( through transcription), which is then converted to proteins ( through translation).

As per the question, a mutation in an organism has lacked the ability to make ( incorporate) one amino acid.

This means that there is a change in the codon ( that is change in the gene) in a manner such that now the mutated codon will not code for any amino acid.

Thus, option b) is the right answer.
Answer 2
Answer: the answer is D. All of three above

Related Questions

If an animal cell shrinks it was probably placed in a
Which layer of the epidermis is known as the grainy cells
How is carbon reintroduced into the atmosphere?
If each normal body cell of a human contains forty-six chromosomes, then the number of chromosomes in a human egg will be
Which modification is crucial in preparing an mRNA strand for proper translation? removal of introns and the splicing together of exons joining of ribosomal subunits to form a ribosomal complex removal of exons and the splicing together of introns addition of a poly-A tail addition of a poly-U tail

Which of the following correctly describes x-rays and their applications? 1. Medical x-ray imaging relies on the change in intensity of a beam due to absorption in the matter, whether the common x-ray radiograph or CT/CAT scanning. 2. x-rays result from the decay of an excited nucleus (one which has a higher energy than the usual energy) without changing the mass or atomic number of...

Answers

2. x-rays result from the decay of an excited nucleus (one which has a higher energy than the usual energy) without changing the mass or atomic number of...

X-rays are fast and and simple method of imaging recommended by most of the doctors nowadays, it is painless and doesn't require much preparation and also doesn't require recovery time after having x-rays. The only time that x-rays become dangerous to a persons health is when they are exposed too much of radiation however, this risk is very low.

A 21-year-old female was lost in the woods for several hours. The ambient temperature is 25 degrees Fahrenheit. She is lethargic and confused. The skin on her hands is waxy and white. What should you do

Answers

The female should be gently wrapped with dry blankets due to exposure of temperature of about 25 degrees Fahrenheit.

Explanation:

Prolonged exposure to extreme heat or cold conditions can impair the body’s temperature control system.  

In the above case the patient is exposed to extreme cold condition in a wood with a freezing temperature of 25 degrees Fahrenheit (-3 degrees Celsius) which leads to hypothermia and frostbite.

Extreme cold conditions can freeze the tissue layers of the parts of the skin exposed like those of the face, hands and feet especially. Due to this the skin becomes white (even grayish yellow or blue) and waxy, cold and numb, and the outer surface may become hard and blistered. There will also be extreme pain, stinging and tingling sensation in the exposed areas.  

These changes are mainly due to impaired blood circulation and hypothermia. Hypothermia which is lowering of body temperature causes confusion and lethargy.

The first-aid given for frostbite primarily includes warming the body. The affected person’s body should be covered with warm and dry blankets gently and loosely and any wet clothes should be removed.  

So when the body is warmed, the body temperature also will increase and correct the hypothermic symptoms like lethargy and confusion.

The rate and direction of reactions are greatly influenced by the _____.

Answers

Answer:

The law of mass action and molecular concentration

Explanation:

Law of mass action: According to this law, the rate of chemical reaction is directly proportional to the masses of the reacting substance, at a constant temperature.

Molecular concentration: It is no of moles of solute dissolved in a liter of solution. No of molecules of reactants increases when we increase the molecular concentration of the reactant, which in turn increases the frequency of collision and hence the rate of reaction and direction.
The rate and direction of reactions are greatly influenced by the Law of Mass action or molecular concentration because they relate to the same principle 

What do the polar bears, reindeer, and shrubs that live in a single area make up?

Answers

they make up an ecosystem (living and non living things in an environment)
I'm pretty sure they make up the eco system

Plasmodium is a protist that causes malaria. A hypothetical drug targeting the outer membrane of plasmodium could cause cell rupture of the protist and help prevent malaria. What specific protist structure would this drug target

Answers

Answer;

-Pellicle

Explanation;

-Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area. Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.

-On a paramecium's exterior is found the pellicle. The pellicle is stiff to maintain the paramecium's shape and provide stability but it is also flexible to allow movement. It also acts as an attachment site for external organelles such as cilia.

Answer:

Pellicle.  

Explanation:

Malaria is the most significant parasitic disease of human. The disease is caused by protozoan of the genus Plasmodium. The most serious malignant malaria is caused byPlasmodium falciparum. It is transmitted by the female Anopheles  mosquito. Plasmodium is a protist that cause malaria. Different types of species of the plasmodium are: P.vivax, P.malaria, P.ovale and P.falciparum which causes the most serious malignant called malaria.  

Protist have animal-cell like membrane and is plasmodium is the example of protist. Its contain single nuclei or many nuclei. On a paracium exterior found a pellicle. Pellicle is a layered structure which surrounds the cells in many types of protozoa and also surrounds the cytoplasm. It is the non-extracellular like the cell wall of plants.

the diagram represents the functional unit of a nervous system. which structure secretes a neurotransmitter

Answers

The structure that secretes the neurotransmitter is the synapse. The synapse is where these neurotransmitters are located. Neurotransmitters are organic chemicals formulated by the nerve cells which enables and triggers some behavioral and cognitive, even emotional dispositions. These are activated according to specific function.  
Other Questions
The responding variable is what you are ________ based on the changes of the manipulated variable.
Decomposition of plant and animal matter present in soil is largely due to soil microorganism. True or False
Cells responsible for body movement are _____ cells.-neuron-bone-muscle-epithelial
Which best describes the author’s viewpoint toward the actual Rosetta Stone in "The Rosetta Stone”?It is a fascinating artifact that can help people better understand the past. It is a historical artifact that scholars spent too much time trying to understand. It is something that is interesting to learn about, but it is not historically significant. It is a piece of 5 that has an exciting and entertaining story.