I need help on this

Answer:

The type of mutation that occurs when in the DNA strand there is a change from guanine to cytosine is a nonsense mutation, since the triplet that should encode the amino acid encodes a stop codon and the protein cannot be completely synthesized.

Explanation:

The nonsense mutation consists of a change in one of the bases of the stranded DNA, which is transcribed into an altered mRNA, producing a stop codon, instead of an amino acid.

In the table it is observed that the CCA codon is a stop codon that cuts off the protein synthesis prematurely, leaving it incomplete and probably non-functional.

Sometimes this type of mutation can alter the sequence of amino acids but the protein may be complete enough to partially fulfill its function.

Answer:

1. Wegener then assembled an impressive amount of evidence to show that Earth's continents were once connected in a single supercontinent. Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptile found only South America and Africa during the Permian period, could be found on many continents.

2. It shows that all continents started from a one large land mass. It might be named Pangea. Because people are close to each other, it's so easy to talk and talk about things not just about them but also about other people.

3.Mesosaurus, (genus Mesosaurus), early aquatic relative of reptiles, found as fossils from the Early Permian Period (299 million to 271 million years ago) in South Africa and South America.

4.The Lystrosaurus is a mammal-like animal from the early Triassic period that roamed modern day regions such as India, South Africa and Antarctica over 250 million years ago. It has tusks like an elephant and a beak similar to a turtle, and it was roughly the size of a pig.

Explanation:

hope that helps

Answer:

DNA contains codes for proteins, which are necessary for the growth and functioning of an organism. DNA separates into long single strands that make up each part of an organism. DNA produces the energy an organism needs in order to grow.

Explanation:

Answer:

It is important because if not then life would not exist at all except maybe in single cells forms

Explanation:

The body is made of so many cells and without cell specialzation, the cells would not know what to do, they would all be the same. The liver is so different from the skin from the eyes, from the tongue, and so on. That is why we need it so our body can do what it is supposed to do.

Thatś only really one example but I hope it helps!

The geological time scale/species scale is divided into different units of time depending on changes in the rocks and fossils. So the statement is true.

The lengthy period of time that the Earth's geologic history has taken up is known as geologic time. Starting at the beginning of the Archean Eon (4.0 to 2.5 billion years ago), formal geologic time runs to the present.

The Hadean Eon, an informal time period that runs from around 4.6 billion years ago (corresponding to Earth's first creation) to 4.0 billion years ago, is also frequently included in modern geologic time scales. The period of Earth's history that is reflected by and preserved in the planet's rock layers is known as geologic time.

Events throughout Earth's history are "calendared" according to the geologic time scale. It divides all of the time into named units of abstract time known as eons, eras, periods, epochs, and ages, in declining order of duration. Those geologic time units are counted according to stratigraphy, the correlation, and the categorization of rock layers.

Therefore, the geological time scale is used for dividing different units of time according to changes in rocks and fossils. Hence the statement is true.

Read more about geological scale, here

https://brainly.com/question/10662464

#SPJ2

Answer:

Frameshift

Explanation:

Mutations are randomly-occuring changes that occur within the genetic code, DNA  due to errors within replication. DNA molecules are long-chain, helical macromolecules that store genetic information They are made up of varying sequences of monomers called nucleotides. which form base pairs and sequences of codons in a reading frame, which gives instructions for protein formation.

Single nucleotide polymorphisms are common, and often result in no changes in amino acids, as silent mutations. Some errors add a random nucleotide (SNP) that results in a premature stop codon, called nonsense mutation. Missense mutations are SNPs that change the sequence of codons resulting in a different amino acid.

Frameshift mutations result from insertions or deletions of nucleotides not divisible by 3. This results in more or less nucleotides needed for a codon and disrupts the reading frame- this results in a different translation of proteins

Answer:

you can't "buy" love honey

Answer:

oxygen

Explanation:

we breath in oxygen and release carbon dioxide

hope this helps :)

Answer:

I'm gonna have to go with B 4 inches

Explanation:

it is B cause I'm below average and no one is longer than 10 inches

Answer:

dude bottom is right

Explanation:

Answer: The action from a force can cause an object to move or can speed up accelerate, to slow down (decelerate), to stop, or to change direction. Since any change in velocity is considered acceleration, it could be said that a force on an object results in the acceleration of a object.

Explanation:

Answer:

(B) The direction of the motion

Explanation:

Answer:

Natural breeding refers to the random mating that occurs between two individuals of the same species. Conversely, selective breeding has been performed for centuries by humans hoping to produce offspring with desirable traits.

Answer:

The difference is C

Anaerobic respiration uses oxygen, and aerobic respiration does not.

Explanation:

The difference between aerobic respiration and anaerobic respiration is that aerobic respiration uses oxygen, and anaerobic respiration does not. The correct answer is option 4.

Glycolysis is the first step in cellular respiration and can take place with or without oxygen.

Anaerobic respiration is cellular respiration that takes place without oxygen. Aerobic respiration is the type of cellular respiration that takes place when there is oxygen present. Aerobic respiration developed first, then anaerobic.

During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilize. As byproducts, carbon dioxide and water are produced.

Without oxygen, organisms must manufacture ATP by anaerobic respiration, which yields just two ATP molecules for every glucose molecule. Anaerobic respiration has the advantage of producing ATP relatively quickly despite producing less of it.

To learn more about anaerobic and aerobic respiration:

https://brainly.com/question/11691469

Answer:

Checkpoints

Explanation:

Cancer is essentially a disease of mitosis - the normal 'checkpoints' regulating mitosis are ignored or overridden by the cancer cell. Cancer begins when a single cell is transformed, or converted from a normal cell to a cancer cell.

Answer:

Cancer: mitosis out of control

Mitosis is closely controlled by the genes inside every cell. Sometimes this control can go wrong. If that happens in just a single cell, it can replicate itself to make new cells that are also out of control. These are cancer cells

Answer:

It can put harmful substances into the atmosphere and boost climate change.

Explanation:

brainliest pls

Answer:

plants and animals habitats will be ruined and or killed off by this harmful practice

Answer: D.

Explanation: Please give me Brainlest Please

Answer:

The moon revolves counterclockwise just like the Earth which is why we only ever see one side of the moon

Explanation:

Answer:yes

Explanation:the moon revolve around the earth

Answer:

Mutations can occur from the following ways:

1. Errors that occur in DNA replication during cell division

2. Exposure to high-energy electromagnetic radiation

3. Exposure to chemicals mutagens

Effects of mutation include:

1. Genetic disorders

2. Cancers

Explanation:

A mutation is a change or alteration that occurs in the DNA sequence of a cell of an organism. These mutations can be passed on to offsprings of that organism. Mutations can occur from the following ways:

1. Errors that occur in DNA replication during cell division: during the process of cell division, the DNA in cell are copied many times. Some errors result when copying DNA, most of which are corrected during proofreading. However, some changes in the DNA sequence may not be corrected, thus resulting in a mutation.

2. Exposure to high-energy electromagnetic radiation: some types of electromagnetic radiation are ionizing, such as UV rays and X-rays. Prolonged exposure to these ionizing radiation may result in permanent damage to parts of the DNA, thereby resulting in a mutation.

3. Exposure to chemicals mutagens: mutagens are substances which are able to cause mutations. Some common chemical mutagens are alkylating agents such as ethylmethane sulfonate and N-methyl-N-nitrosourea.

Effects of mutation include:

1. Genetic disorders: in genetic disorders, certain normal functioning of the body processes are impaired. For example, hemophilia whereby blood lacks the ability to clot normally resulting in excessive bleeding.

2. Cancers: cancers occur when the cell of the body differentiate and grow abnormally. Various types of cancers include breast cancer, prostrate cancer, blood cancer etc.

Answer:

i think its compression

Explanation:

...

Answer:

The anwser is the starting point hope this helps :)

Explanation:

i took the test and got it right :)

Glycolysis produces 2 NADH, 2 ATP, and 2 Pyruvate molecules.

Glycolysis is the process that is described as an oxidative pathway that typically breaks down the monosaccharides including galactose and glucose molecules and is further involved in the transformation of the energy released into chemical energy which can be used by cells. The products obtained from the glycolysis are:

Glycolysis produces 2 ATP, 2 NADH, and 2 pyruvate molecules: Glycolysis, or the aerobic catabolic breakdown of glucose, produces energy in the form of ATP, NADH, and pyruvate, which itself enters the citric acid cycle to produce more energy.

Learn more about products of glycolysis

https://brainly.com/question/18825995

#SPJ2

Answer:

The football flying through the goal

Explanation:

Kinetic energy is basiaclly moving energy. Since only the football going through the goal is moving, that's the one with the most kinetic energy.  

Answer:

Cycle: A repeated pattern, The sun: The orgin for the water cycle, The water cycle: The process by which water circulates between the oceans, atmosphere, and land, Evaporation: The sun heats up water and turns it into vapor, Condensation: Water vapor in the air that gets cold and turns into water, Percipitation: water that falls in the form of snow, rain or hail.

Answer:

1. Water will move out of the cell

- There is a higher concentration outside of the cell

Answer:

To double its attacking power.

Explanation:

"Interaction with armed helper T cells activates the B cell to establish a primary focus of clonal expansion. Here, at the border between T-cell and B-cell zones, both types of lymphocyte will multiply for several days to constitute the first phase of the primary humoral immune response."