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olga2289 [7]
2 years ago
10

A)Exons 2 and 3 must have the same number of nucleotides. B)Exons 2 and 3 must contain an integral number of codons (that is, th

e number of nucleotides divided by 3 must be an integer). C)Exons 2 and 3 must contain a number of nucleotides that when divided by 3, leaves the same remainder (that is, 0, 1, or 2). D)Exons 2 and 3 must have different numbers of nucleotides. Multiple Choice
Biology
1 answer:
Thepotemich [5.8K]2 years ago
4 0

Answer:

Statement C is the only one that is necessarily true for exons 2 and 3. It is also true for exons 7 and 8. While statements A and B could be true, they don’thave to be. Because the protein sequence is the same in segments of the mRNA that correspond to exons 1 and 10, neither choice of alternative exons (2 versus 3, or 7 versus 8) can alter the reading frame. To maintain the normal reading frame—whatever that is—the alternative exons must have a number of nucleotides that when divided by 3 (the number of nucleotides in a codon) give the same remainder. Since the sequence of the a-tropomyosin gene is known, it is possible to check to see the actual state of affairs. Exons 2 and 3 both contain the same number of nucleotides, 126, which is divisible by 3 with no remainder.

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Learning Competencies: 1. Explain how protein is made using information from DNA. 2. Explain how mutation may cause changes in t
olga2289 [7]

Answer:

The correct answer is -

1. protein synthesis or central dogma

2. leads to changes in the structure by changing in the codes which results in a decrease or loss of function.

Explanation:

1, Protein is made from the information coded in DNA base sequences by the two process protein synthesis that is also called central dogma. The two-process involve in this are transcription involves encoding the information present in DNA by mRNA molecule that codes the information in complementary sequence to DNA. which is then moved out of the nucleus and perform the translation with help of tRNA and ribosome to code the amino acid with help of triplet codes present in mRNA. These amino acids chain are called proteins.

2. Mutations can lead to change in the base sequences or deletion of the base which affects the structure of the protein and also leads to changes in an encoded protein or to a decrease or complete loss in its function or expression. Mutation can damage the cell or organism as it affects the gene expression of all cells of organisms.

7 0
3 years ago
Will give the brainliest!
Alexxx [7]
<h2>°·.¸.·°¯°·.¸.·°¯°·.¸.->    Answer     >-.¸.·°¯°·.¸.·°¯°·.¸.·° </h2>

When heat is added to a solid, its particles move _______

A. faster

B. slower

C. closer together

<em>D. the same speed</em>

<h2>(っ◔◡◔)っ ♥ Answer ♥</h2>

A. (I THINK-)

<h2>Explanation</h2>

When heat is added to an object, the molecules vibrate faster. As they go faster, there is more space in between the molecules.

<h2>¸,ø¤º°`°º¤ø,¸¸,ø¤º° Details °º¤ø,¸¸,ø¤º°`°º¤ø,¸ </h2>

Subject: Science

Unit: Atoms, Molecules,

Grade: 5-7

(I think I might be wrong-)

4 0
3 years ago
Describe the effect that sickle cell anemia has on the sedimentation rate (sample 3. why do you think that it has this effect?
Eva8 [605]
Sickle cell anemia is a genetic condition that distorts the shape of the hemoglobin. This reduces the capacity of the red blood cells to carry oxygen. Another effect is that the distorted red blood cells come together forming a heavy and compact collection of cells that can block the flow of blood. The sedimentation rate is increased by sickle cell anemia.
3 0
3 years ago
How do animals get nitrogen
7nadin3 [17]

Answer:

A they break down glucose moleculws

5 0
3 years ago
Read 2 more answers
Louis Pasteur said, "The role of the infinitely small in nature is infinitely large." Explain what he meant, using examples of t
Rus_ich [418]

Answer:

HEALTH SECTOR(microorganisms have led to the most devastating diseases of man such as HIV VIRUS, HEPATITIS VIRUS, SALMONELLA TYPHI AND PARATYPHI SPPS)

INDUSTRY(microorganisms have led to masses losses due to contamination of foods like the GROWTH OF MOLDS)

ENVIRONMENT most contamination of the environment are caused by microorganisms.

Explanation:Louis Pasteur meant that with the microscopic nature of microorganisms they have been able to make great impact in the world.

IN THE HEALTH SECTOR Microorganisms have been the major cause of the diseases of human and animals world wide, diseases such as Hepatitis A,B,C Virus,Typhoid caused by Bacteria (Salmonella typhy and paratyphy spp) etc have been a cause of a huge number of death.

INDUSTRY

Microorganisms are major causes of loss in the industries leading to large scale contamination of food products, such as Fungi infestation on foods especially of plants origin. MICROORGANISMS ALSO HAVE BENEFITS IN THE INDUSTRY AS IT IS USED IN THE FERMENTATION OF FOOD PRODUCTS.

IN THE ENVIRONMENT

Microorganisms are the major cause of environmental hazards such as the contamination of water bodies, the air (THE HUMAN FLU VIRUS) etc ALL THESE MICROORGANISMS HAVE CAUSED MASSIVE DEATHS THE WORLD OVER.

5 0
3 years ago
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