1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
10

Which of the following is used to caculate the average atomic mass of an element

Biology
1 answer:
charle [14.2K]3 years ago
6 0
The average atomic mass of an element<span> is the sum of the </span>masses of its isotopes, each multiplied by its natural abundance (the decimal associated with percent of atoms<span> of that </span>element<span> that are of a given isotope).</span>
You might be interested in
Typically, acetylation of histone tails leads to ________. Typically, acetylation of histone tails leads to ________. relaxed pa
ololo11 [35]

Answer:

relaxed packaging of the chromatin and increased transcription.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Basically, nucleotide comprises of the following parts;

1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.

2. A phosphate group.

3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.

The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;

I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.

II. Phosphate: this is the structural backbone that provides support to DNA.

Histones are a group of highly basic proteins that are mainly associated with deoxyribonucleic acid (DNA) in the nucleus of a living organism and are responsible for condensing it to chromatin.

Typically, acetylation of histone tails leads to relaxed packaging of the chromatin and increased transcription.

Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase.

6 0
3 years ago
Which organic molecule would a long-distance runner most likely choose to eat before a race?
Over [174]
Biomolecules are organic compounds that are present as essential components of living things. There are four major biomolecules namely lipids, proteins, carbohydrates and nucleic acids. Proteins, lipids and glucose are usually used by organisms as energy sources as well as structural components among other functions in living organisms. Nucleic acids are important components that bring about heredity. In this case the appropriate molecule to be chosen by the long distance learner would be carbohydrate because it stores and may be used as a source of energy.
7 0
3 years ago
Please answer will give Brainlyist! What causes the temperatures in the lower troposphere to be warmer?
serious [3.7K]
Hi there!

The lower the area, the warner it is, because of the change in air pressure. Less air and less air pressure results in colder temperatures even though higher places may be closer to the sun.

Hope this helps!
6 0
3 years ago
A science fair project showed that sunflowers turn towards the light throughout the day. This statement should be classified as
notsponge [240]
a fact.

Flowers tend to respond to stimuli
Stimuli are anything that causes arousal or enables an object to respond or react.

There are many different kinds of stimuli for which is different for every organism, for example, water, light and carbon dioxide are three stimuli and materials needed for photosynthesis in plants to manifest.
<span>In humans, we have nutrients or food, oxygen and water for us to survive. These are stimuli, eyes need light as a stimuli for it see and function. Nasal receptors needs smell as stimuli caused by molecular reactions of an object as a stimuli. And others.<span>
</span></span>
5 0
3 years ago
How does a cell illustrate the basic concepts of life? Be specific and use at least 3 characteristics of life.
RoseWind [281]

Answer:

Explanation:

A cell as the functional and structural unit of life exhibits numerous concepts of life which include:

1. Growth; A cell is a subject to this as the growth of a cell translates to the growth of the tissue is composed of, the cell is responsible for all biochemical actions in living organisms, this growth is achieved via mitosis.

2. Reproduction: Cells also experience reproduction via meiosis, where a diploid cell divides to produce 2haploid cells an example of this is the spermatozoa.

3. Death: Cells are also subject to death, which can either be programmed (Apoptosis), or due to sickness(Necrosis). This is also found when humans die and become stiff due to rigor mortis which occurs as a result of cell death

6 0
3 years ago
Other questions:
  • In which direction did the water move when you add salt water
    14·1 answer
  • 1.Describe at least one societal issue that scientists will be able to address using the sequence of the human genome.
    9·1 answer
  • If a homologous pair of chromosomes fail to separate during meiosis I, what will be the result?
    7·1 answer
  • Which of these will diffuse across a plasma membrane? select one:
    6·1 answer
  • The internal iliac arteries supply blood to the
    11·2 answers
  • The ________ of the lungs is an indication of their expandability, how easily the lungs expand and contract.
    14·1 answer
  • Convection currents within the Earth cause plate tectonics due to the movement of the mantle. Please select the best answer from
    11·2 answers
  • There are mountain ranges in the middle of the ocean floor. Because of the higher elevation gravity pushes down on the edges of
    9·1 answer
  • Populations of organisms have many genetic variations. Where do these come from?
    10·1 answer
  • Use this graph. Which climate pattern statement is true?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!