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saw5 [17]
3 years ago
10

What type of mutation is shown in the picture provided?

Biology
1 answer:
SVETLANKA909090 [29]3 years ago
4 0

Answer:

Hello!

The answer is C) substitution

Explanation:

Substitution:

A kind of mutation that involves the substitution of a single nucleotide by another, without changing the frame of reference of the DNA sequence. In this particular example, the thymine in the codon GAG (codes for glutamic acid) is being substituted by the base adenine, leaving the codon GTG (codes for the amino acid, valine).

The described substitution occurs in the case of the disease, sickle cell anemia that yields abnormal heamoglobin.

  • A) A deletion removes a base from the DNA sequence. This alters the frame of reference of the mRNA.
  • B) An insertion involves the addition of a base into the DNA sequence.
  • D) A silent mutation substitutes a base in such as way that the new codon codes for the same amino acid, conserving the function and structure of the protein; therefore, silent mutations are harmless.

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All of Earth's biomes and ecosystems, except the most remote, are affected by the impact that humans have made on the environmen
irina [24]

Answer:

b. False

Explanation:

All biomes, even the most remote, are affected by the impact humans have on the environment.

Humans have been causing deforestation, pollution, agricultural expansion, mining, desertification, extinction of animals and plants, burning and other practices that have had extremely negative impacts on biomes around the world. In addition, all the pollution and exploitation of nature that humans have caused has caused harmful climate change that has affected even the most remote biomes.

The biome is a large set of interconnected ecosystems. Ecosystem, in turn, is an ecological system where there is life and interaction between living beings in a given space, and can vary in size, from a puddle to a large forest.

7 0
3 years ago
A needle-exchange program focused on a neighborhood with a high number of intravenous drug users is an example of _____ preventi
alex41 [277]

Answer:

Secondary

Explanation:

There are several levels of prevention. You might confuse this with primary prevention. Primary prevention is preventing infection, so it has to be done before the patient caught the disease.

The needle-exchange program aims to reduce the spread of blood-borne disease(HIV, hepatitis, etc) from the multiple usages of the same needle. Since the disease already exists, this will be secondary prevention.

7 0
3 years ago
What are 2 major building blocks in glucose,fructose,and sucrose.what are these elements
docker41 [41]
Carbon and Hydrogen! :^) Hope this helps!
8 0
3 years ago
Which of the following is an example of parasitism?
SpyIntel [72]

Answer:

Female mosquitoes feed on the blood of animals

Explanation:

6 0
4 years ago
UESTION 15 Functions of the stomach include all of the following, except initiation of protein digestion. mechanical breakdown o
AURORKA [14]

Answer:

absorption of triglycerides.

Explanation:

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The stomach performs various functions in the digestive system which are very important for digestion of food.

The stomach is involved in churning or breaking down larger pieces into smaller pieces, initiation of protein digestion as it secretes trypsin and chymotrypsin where this enzyme denatures the protein structure present in food and storage of food. But the function of absorption of triglycerides is performed by the small and large intestine which can absorb the triglyceride.

Thus, the selected option is the correct answer.

8 0
4 years ago
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